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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QMessageBox Class Reference</h1> | 
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| 33 |  | 
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| 34 | <p>The QMessageBox class provides a modal dialog with a short message, an icon, and some buttons. | 
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| 35 | <a href="#details">More...</a> | 
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| 36 | <p><tt>#include <<a href="qmessagebox-h.html">qmessagebox.h</a>></tt> | 
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| 37 | <p>Inherits <a href="qdialog.html">QDialog</a>. | 
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| 38 | <p><a href="qmessagebox-members.html">List of all member functions.</a> | 
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| 39 | <h2>Public Members</h2> | 
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| 40 | <ul> | 
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| 41 | <li class=fn>enum <a href="#Icon-enum"><b>Icon</b></a> { NoIcon = 0, Information = 1, Warning = 2, Critical = 3, Question = 4 }</li> | 
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| 42 | <li class=fn><a href="#QMessageBox"><b>QMessageBox</b></a> ( QWidget * parent = 0, const char * name = 0 )</li> | 
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| 43 | <li class=fn><a href="#QMessageBox-2"><b>QMessageBox</b></a> ( const QString & caption, const QString & text, Icon icon, int button0, int button1, int button2, QWidget * parent = 0, const char * name = 0, bool modal = TRUE, WFlags f = WStyle_DialogBorder )</li> | 
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| 44 | <li class=fn><a href="#~QMessageBox"><b>~QMessageBox</b></a> ()</li> | 
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| 45 | <li class=fn>QString <a href="#text"><b>text</b></a> () const</li> | 
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| 46 | <li class=fn>void <a href="#setText"><b>setText</b></a> ( const QString & )</li> | 
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| 47 | <li class=fn>Icon <a href="#icon"><b>icon</b></a> () const</li> | 
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| 48 | <li class=fn>void <a href="#setIcon"><b>setIcon</b></a> ( Icon )</li> | 
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| 49 | <li class=fn>const QPixmap * <a href="#iconPixmap"><b>iconPixmap</b></a> () const</li> | 
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| 50 | <li class=fn>void <a href="#setIconPixmap"><b>setIconPixmap</b></a> ( const QPixmap & )</li> | 
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| 51 | <li class=fn>QString <a href="#buttonText"><b>buttonText</b></a> ( int button ) const</li> | 
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| 52 | <li class=fn>void <a href="#setButtonText"><b>setButtonText</b></a> ( int button, const QString & text )</li> | 
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| 53 | <li class=fn>virtual void <a href="#adjustSize"><b>adjustSize</b></a> ()</li> | 
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| 54 | <li class=fn>TextFormat <a href="#textFormat"><b>textFormat</b></a> () const</li> | 
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| 55 | <li class=fn>void <a href="#setTextFormat"><b>setTextFormat</b></a> ( TextFormat )</li> | 
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| 56 | </ul> | 
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| 57 | <h2>Static Public Members</h2> | 
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| 58 | <ul> | 
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| 59 | <li class=fn>int <a href="#information"><b>information</b></a> ( QWidget * parent, const QString & caption, const QString & text, int button0, int button1 = 0, int button2 = 0 )</li> | 
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| 60 | <li class=fn>int <a href="#information-2"><b>information</b></a> ( QWidget * parent, const QString & caption, const QString & text, const QString & button0Text = QString::null, const QString & button1Text = QString::null, const QString & button2Text = QString::null, int defaultButtonNumber = 0, int escapeButtonNumber = -1 )</li> | 
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| 61 | <li class=fn>int <a href="#question"><b>question</b></a> ( QWidget * parent, const QString & caption, const QString & text, int button0, int button1 = 0, int button2 = 0 )</li> | 
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| 62 | <li class=fn>int <a href="#question-2"><b>question</b></a> ( QWidget * parent, const QString & caption, const QString & text, const QString & button0Text = QString::null, const QString & button1Text = QString::null, const QString & button2Text = QString::null, int defaultButtonNumber = 0, int escapeButtonNumber = -1 )</li> | 
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| 63 | <li class=fn>int <a href="#warning"><b>warning</b></a> ( QWidget * parent, const QString & caption, const QString & text, int button0, int button1, int button2 = 0 )</li> | 
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| 64 | <li class=fn>int <a href="#warning-2"><b>warning</b></a> ( QWidget * parent, const QString & caption, const QString & text, const QString & button0Text = QString::null, const QString & button1Text = QString::null, const QString & button2Text = QString::null, int defaultButtonNumber = 0, int escapeButtonNumber = -1 )</li> | 
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| 65 | <li class=fn>int <a href="#critical"><b>critical</b></a> ( QWidget * parent, const QString & caption, const QString & text, int button0, int button1, int button2 = 0 )</li> | 
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| 66 | <li class=fn>int <a href="#critical-2"><b>critical</b></a> ( QWidget * parent, const QString & caption, const QString & text, const QString & button0Text = QString::null, const QString & button1Text = QString::null, const QString & button2Text = QString::null, int defaultButtonNumber = 0, int escapeButtonNumber = -1 )</li> | 
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| 67 | <li class=fn>void <a href="#about"><b>about</b></a> ( QWidget * parent, const QString & caption, const QString & text )</li> | 
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| 68 | <li class=fn>void <a href="#aboutQt"><b>aboutQt</b></a> ( QWidget * parent, const QString & caption = QString::null )</li> | 
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| 69 | <li class=fn>int message ( const QString & caption, const QString & text, const QString & buttonText = QString::null, QWidget * parent = 0, const char * = 0 )  <em>(obsolete)</em></li> | 
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| 70 | <li class=fn>bool query ( const QString & caption, const QString & text, const QString & yesButtonText = QString::null, const QString & noButtonText = QString::null, QWidget * parent = 0, const char * = 0 )  <em>(obsolete)</em></li> | 
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| 71 | <li class=fn>QPixmap standardIcon ( Icon icon, GUIStyle style )  <em>(obsolete)</em></li> | 
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| 72 | <li class=fn>QPixmap <a href="#standardIcon"><b>standardIcon</b></a> ( Icon icon )</li> | 
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| 73 | </ul> | 
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| 74 | <h2>Properties</h2> | 
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| 75 | <ul> | 
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| 76 | <li class=fn>Icon <a href="#icon-prop"><b>icon</b></a> - the message box's icon</li> | 
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| 77 | <li class=fn>QPixmap <a href="#iconPixmap-prop"><b>iconPixmap</b></a> - the current icon</li> | 
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| 78 | <li class=fn>QString <a href="#text-prop"><b>text</b></a> - the message box text to be displayed</li> | 
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| 79 | <li class=fn>TextFormat <a href="#textFormat-prop"><b>textFormat</b></a> - the format of the text displayed by the message box</li> | 
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| 80 | </ul> | 
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| 81 | <hr><a name="details"></a><h2>Detailed Description</h2> | 
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| 82 |  | 
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| 83 |  | 
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| 84 | The QMessageBox class provides a modal dialog with a short message, an icon, and some buttons. | 
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| 85 |  | 
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| 86 |  | 
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| 87 | <p> Message boxes are used to provide informative messages and to ask | 
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| 88 | simple questions. | 
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| 89 | <p> QMessageBox provides a range of different messages, arranged | 
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| 90 | roughly along two axes: severity and complexity. | 
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| 91 | <p> Severity is | 
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| 92 | <center><table cellpadding="4" cellspacing="2" border="0"> | 
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| 93 | <tr bgcolor="#f0f0f0"> | 
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| 94 | <td valign="top"><center><img src="qmessagebox-quest.png"></center> <td valign="top">Question | 
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| 95 | <td valign="top">For message boxes that ask a question as part of normal | 
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| 96 | operation. Some style guides recommend using Information for this | 
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| 97 | purpose. | 
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| 98 | <tr bgcolor="#d0d0d0"> | 
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| 99 | <td valign="top"><center><img src="qmessagebox-info.png"></center> <td valign="top">Information | 
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| 100 | <td valign="top">For message boxes that are part of normal operation. | 
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| 101 | <tr bgcolor="#f0f0f0"> | 
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| 102 | <td valign="top"><center><img src="qmessagebox-warn.png"></center> <td valign="top">Warning | 
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| 103 | <td valign="top">For message boxes that tell the user about unusual errors. | 
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| 104 | <tr bgcolor="#d0d0d0"> | 
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| 105 | <td valign="top"><center><img src="qmessagebox-crit.png"></center> <td valign="top">Critical | 
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| 106 | <td valign="top">For message boxes that tell the user about critical errors. | 
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| 107 | </table></center> | 
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| 108 | <p> The message box has a different icon for each of the severity levels. | 
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| 109 | <p> Complexity is one button (OK) for simple messages, or two or even | 
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| 110 | three buttons for questions. | 
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| 111 | <p> There are static functions for the most common cases. | 
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| 112 | <p> Examples: | 
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| 113 | <p> If a program is unable to find a supporting file, but can do perfectly | 
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| 114 | well without it: | 
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| 115 | <p> <pre> | 
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| 116 | QMessageBox::<a href="#information">information</a>( this, "Application name", | 
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| 117 | "Unable to find the user preferences file.\n" | 
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| 118 | "The factory default will be used instead." ); | 
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| 119 | </pre> | 
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| 120 |  | 
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| 121 | <p> <a href="#question">question</a>() is useful for simple yes/no questions: | 
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| 122 | <p> <pre> | 
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| 123 | if ( QFile::<a href="qfile.html#exists">exists</a>( filename ) && | 
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| 124 | QMessageBox::<a href="#question">question</a>( | 
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| 125 | this, | 
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| 126 | <a href="qobject.html#tr">tr</a>("Overwrite File? -- Application Name"), | 
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| 127 | <a href="qobject.html#tr">tr</a>("A file called %1 already exists." | 
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| 128 | "Do you want to overwrite it?") | 
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| 129 | .arg( filename ), | 
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| 130 | <a href="qobject.html#tr">tr</a>("&Yes"), tr("&No"), | 
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| 131 | <a href="qstring.html#QString-null">QString::null</a>, 0, 1 ) ) | 
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| 132 | return false; | 
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| 133 | </pre> | 
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| 134 |  | 
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| 135 | <p> <a href="#warning">warning</a>() can be used to tell the user about unusual errors, or | 
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| 136 | errors which can't be easily fixed: | 
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| 137 | <p> <pre> | 
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| 138 | switch( QMessageBox::<a href="#warning">warning</a>( this, "Application name", | 
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| 139 | "Could not connect to the <mumble> server.\n" | 
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| 140 | "This program can't function correctly " | 
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| 141 | "without the server.\n\n", | 
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| 142 | "Retry", | 
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| 143 | "Quit", 0, 0, 1 ) ) { | 
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| 144 | case 0: // The user clicked the Retry again button or pressed Enter | 
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| 145 | // try again | 
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| 146 | break; | 
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| 147 | case 1: // The user clicked the Quit or pressed Escape | 
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| 148 | // exit | 
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| 149 | break; | 
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| 150 | } | 
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| 151 | </pre> | 
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| 152 |  | 
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| 153 | <p> The text part of all message box messages can be either rich text | 
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| 154 | or plain text. If you specify a rich text formatted string, it | 
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| 155 | will be rendered using the default stylesheet. See | 
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| 156 | <a href="qstylesheet.html#defaultSheet">QStyleSheet::defaultSheet</a>() for details. With certain strings that | 
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| 157 | contain XML meta characters, the auto-rich text detection may | 
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| 158 | fail, interpreting plain text incorrectly as rich text. In these | 
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| 159 | rare cases, use <a href="qstylesheet.html#convertFromPlainText">QStyleSheet::convertFromPlainText</a>() to convert | 
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| 160 | your plain text string to a visually equivalent rich text string | 
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| 161 | or set the text format explicitly with <a href="#setTextFormat">setTextFormat</a>(). | 
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| 162 | <p> Note that the Microsoft Windows User Interface Guidelines | 
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| 163 | recommend using the application name as the window's caption. | 
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| 164 | <p> Below are more examples of how to use the static member functions. | 
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| 165 | After these examples you will find an overview of the non-static | 
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| 166 | member functions. | 
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| 167 | <p> Exiting a program is part of its normal operation. If there is | 
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| 168 | unsaved data the user probably should be asked if they want to | 
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| 169 | save the data. For example: | 
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| 170 | <p> <pre> | 
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| 171 | switch( QMessageBox::<a href="#information">information</a>( this, "Application name here", | 
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| 172 | "The document contains unsaved changes\n" | 
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| 173 | "Do you want to save the changes before exiting?", | 
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| 174 | "&Save", "&Discard", "Cancel", | 
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| 175 | 0,      // Enter == button 0 | 
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| 176 | 2 ) ) { // Escape == button 2 | 
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| 177 | case 0: // Save clicked or Alt+S pressed or Enter pressed. | 
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| 178 | // save | 
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| 179 | break; | 
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| 180 | case 1: // Discard clicked or Alt+D pressed | 
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| 181 | // don't save but exit | 
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| 182 | break; | 
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| 183 | case 2: // Cancel clicked or Escape pressed | 
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| 184 | // don't exit | 
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| 185 | break; | 
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| 186 | } | 
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| 187 | </pre> | 
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| 188 |  | 
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| 189 | <p> The Escape button cancels the entire exit operation, and pressing | 
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| 190 | Enter causes the changes to be saved before the exit occurs. | 
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| 191 | <p> Disk full errors are unusual and they certainly can be hard to | 
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| 192 | correct. This example uses predefined buttons instead of | 
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| 193 | hard-coded button texts: | 
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| 194 | <p> <pre> | 
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| 195 | switch( QMessageBox::<a href="#warning">warning</a>( this, "Application name here", | 
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| 196 | "Could not save the user preferences,\n" | 
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| 197 | "because the disk is full. You can delete\n" | 
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| 198 | "some files and press Retry, or you can\n" | 
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| 199 | "abort the Save Preferences operation.", | 
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| 200 | QMessageBox::Retry | QMessageBox::Default, | 
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| 201 | QMessageBox::Abort | QMessageBox::Escape )) { | 
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| 202 | case QMessageBox::Retry: // Retry clicked or Enter pressed | 
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| 203 | // try again | 
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| 204 | break; | 
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| 205 | case QMessageBox::Abort: // Abort clicked or Escape pressed | 
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| 206 | // abort | 
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| 207 | break; | 
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| 208 | } | 
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| 209 | </pre> | 
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| 210 |  | 
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| 211 | <p> The <a href="#critical">critical</a>() function should be reserved for critical errors. In | 
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| 212 | this example errorDetails is a <a href="qstring.html">QString</a> or const char*, and QString | 
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| 213 | is used to concatenate several strings: | 
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| 214 | <p> <pre> | 
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| 215 | QMessageBox::<a href="#critical">critical</a>( 0, "Application name here", | 
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| 216 | QString("An internal error occurred. Please ") + | 
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| 217 | "call technical support at 1234-56789 and report\n"+ | 
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| 218 | "these numbers:\n\n" + errorDetails + | 
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| 219 | "\n\nApplication will now exit." ); | 
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| 220 | </pre> | 
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| 221 |  | 
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| 222 | <p> In this example an OK button is displayed. | 
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| 223 | <p> QMessageBox provides a very simple About box which displays an | 
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| 224 | appropriate icon and the string you provide: | 
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| 225 | <p> <pre> | 
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| 226 | QMessageBox::<a href="#about">about</a>( this, "About <Application>", | 
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| 227 | "<Application> is a <one-paragraph blurb>\n\n" | 
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| 228 | "Copyright 1991-2003 Such-and-such. " | 
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| 229 | "<License words here.>\n\n" | 
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| 230 | "For technical support, call 1234-56789 or see\n" | 
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| 231 | "http://www.such-and-such.com/Application/\n" ); | 
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| 232 | </pre> | 
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| 233 |  | 
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| 234 | <p> See <a href="#about">about</a>() for more information. | 
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| 235 | <p> If you want your users to know that the application is built using | 
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| 236 | Qt (so they know that you use high quality tools) you might like | 
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| 237 | to add an "About Qt" menu option under the Help menu to invoke | 
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| 238 | <a href="#aboutQt">aboutQt</a>(). | 
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| 239 | <p> If none of the standard message boxes is suitable, you can create a | 
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| 240 | QMessageBox from scratch and use custom button texts: | 
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| 241 | <p> <pre> | 
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| 242 | QMessageBox mb( "Application name here", | 
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| 243 | "Saving the file will overwrite the original file on the disk.\n" | 
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| 244 | "Do you really want to save?", | 
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| 245 | QMessageBox::<a href="#Icon-enum">Information</a>, | 
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| 246 | QMessageBox::Yes | QMessageBox::Default, | 
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| 247 | QMessageBox::No, | 
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| 248 | QMessageBox::Cancel | QMessageBox::Escape ); | 
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| 249 | mb.<a href="#setButtonText">setButtonText</a>( QMessageBox::Yes, "Save" ); | 
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| 250 | mb.<a href="#setButtonText">setButtonText</a>( QMessageBox::No, "Discard" ); | 
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| 251 | switch( mb.<a href="qdialog.html#exec">exec</a>() ) { | 
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| 252 | case QMessageBox::Yes: | 
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| 253 | // save and exit | 
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| 254 | break; | 
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| 255 | case QMessageBox::No: | 
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| 256 | // exit without saving | 
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| 257 | break; | 
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| 258 | case QMessageBox::Cancel: | 
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| 259 | // don't save and don't exit | 
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| 260 | break; | 
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| 261 | } | 
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| 262 | </pre> | 
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| 263 |  | 
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| 264 | <p> QMessageBox defines two enum types: Icon and an unnamed button type. | 
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| 265 | Icon defines the <a href="#Icon-enum">Question</a>, <a href="#Icon-enum">Information</a>, <a href="#Icon-enum">Warning</a>, and <a href="#Icon-enum">Critical</a> icons for each GUI style. It is used by the constructor | 
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| 266 | and by the static member functions <a href="#question">question</a>(), <a href="#information">information</a>(), | 
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| 267 | <a href="#warning">warning</a>() and <a href="#critical">critical</a>(). A function called <a href="#standardIcon">standardIcon</a>() gives | 
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| 268 | you access to the various icons. | 
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| 269 | <p> The button types are: | 
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| 270 | <ul> | 
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| 271 | <li> Ok - the default for single-button message boxes | 
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| 272 | <li> Cancel - note that this is <em>not</em> automatically Escape | 
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| 273 | <li> Yes | 
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| 274 | <li> No | 
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| 275 | <li> Abort | 
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| 276 | <li> Retry | 
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| 277 | <li> Ignore | 
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| 278 | <li> YesAll | 
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| 279 | <li> NoAll | 
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| 280 | </ul> | 
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| 281 | <p> Button types can be combined with two modifiers by using OR, '|': | 
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| 282 | <ul> | 
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| 283 | <li> Default - makes pressing Enter equivalent to | 
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| 284 | clicking this button. Normally used with Ok, Yes or similar. | 
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| 285 | <li> Escape - makes pressing Escape equivalent to clicking this button. | 
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| 286 | Normally used with Abort, Cancel or similar. | 
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| 287 | </ul> | 
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| 288 | <p> The <a href="#text">text</a>(), <a href="#icon">icon</a>() and <a href="#iconPixmap">iconPixmap</a>() functions provide access to the | 
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| 289 | current text and pixmap of the message box. The <a href="#setText">setText</a>(), <a href="#setIcon">setIcon</a>() | 
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| 290 | and <a href="#setIconPixmap">setIconPixmap</a>() let you change it. The difference between | 
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| 291 | setIcon() and setIconPixmap() is that the former accepts a | 
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| 292 | QMessageBox::Icon and can be used to set standard icons, whereas the | 
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| 293 | latter accepts a <a href="qpixmap.html">QPixmap</a> and can be used to set custom icons. | 
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| 294 | <p> <a href="#setButtonText">setButtonText</a>() and <a href="#buttonText">buttonText</a>() provide access to the buttons. | 
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| 295 | <p> QMessageBox has no signals or slots. | 
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| 296 | <p> <img src=qmsgbox-m.png> <img src=qmsgbox-w.png> | 
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| 297 | <p> <p>See also <a href="qdialog.html">QDialog</a>, <a href="http://www.iarchitect.com/errormsg.htm | 
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| 298 | ">Isys on error messages</a>, <a href="guibooks.html#fowler">GUI Design Handbook: Message Box</a>, and <a href="dialogs.html">Dialog Classes</a>. | 
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| 299 |  | 
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| 300 | <hr><h2>Member Type Documentation</h2> | 
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| 301 | <h3 class=fn><a name="Icon-enum"></a>QMessageBox::Icon</h3> | 
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| 302 |  | 
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| 303 | <p> This enum has the following values: | 
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| 304 | <ul> | 
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| 305 | <li><tt>QMessageBox::NoIcon</tt> - the message box does not have any icon. | 
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| 306 | <li><tt>QMessageBox::Question</tt> - an icon indicating that | 
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| 307 | the message is asking a question. | 
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| 308 | <li><tt>QMessageBox::Information</tt> - an icon indicating that | 
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| 309 | the message is nothing out of the ordinary. | 
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| 310 | <li><tt>QMessageBox::Warning</tt> - an icon indicating that the | 
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| 311 | message is a warning, but can be dealt with. | 
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| 312 | <li><tt>QMessageBox::Critical</tt> - an icon indicating that | 
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| 313 | the message represents a critical problem. | 
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| 314 | </ul><p> | 
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| 315 | <hr><h2>Member Function Documentation</h2> | 
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| 316 | <h3 class=fn><a name="QMessageBox"></a>QMessageBox::QMessageBox ( <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 ) | 
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| 317 | </h3> | 
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| 318 | Constructs a message box with no text and a button with the label | 
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| 319 | "OK". | 
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| 320 | <p> If <em>parent</em> is 0, the message box becomes an application-global | 
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| 321 | modal dialog box. If <em>parent</em> is a widget, the message box | 
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| 322 | becomes modal relative to <em>parent</em>. | 
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| 323 | <p> The <em>parent</em> and <em>name</em> arguments are passed to the <a href="qdialog.html">QDialog</a> | 
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| 324 | constructor. | 
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| 325 |  | 
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| 326 | <h3 class=fn><a name="QMessageBox-2"></a>QMessageBox::QMessageBox ( const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, <a href="qmessagebox.html#Icon-enum">Icon</a> icon, int button0, int button1, int button2, <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0, bool modal = TRUE, WFlags f = WStyle_DialogBorder ) | 
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| 327 | </h3> | 
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| 328 | Constructs a message box with a <em>caption</em>, a <em>text</em>, an <em>icon</em>, | 
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| 329 | and up to three buttons. | 
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| 330 | <p> The <em>icon</em> must be one of the following: | 
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| 331 | <ul> | 
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| 332 | <li> QMessageBox::NoIcon | 
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| 333 | <li> QMessageBox::Question | 
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| 334 | <li> QMessageBox::Information | 
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| 335 | <li> QMessageBox::Warning | 
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| 336 | <li> QMessageBox::Critical | 
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| 337 | </ul> | 
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| 338 | <p> Each button, <em>button0</em>, <em>button1</em> and <em>button2</em>, can have one | 
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| 339 | of the following values: | 
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| 340 | <ul> | 
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| 341 | <li> QMessageBox::NoButton | 
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| 342 | <li> QMessageBox::Ok | 
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| 343 | <li> QMessageBox::Cancel | 
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| 344 | <li> QMessageBox::Yes | 
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| 345 | <li> QMessageBox::No | 
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| 346 | <li> QMessageBox::Abort | 
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| 347 | <li> QMessageBox::Retry | 
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| 348 | <li> QMessageBox::Ignore | 
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| 349 | <li> QMessageBox::YesAll | 
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| 350 | <li> QMessageBox::NoAll | 
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| 351 | </ul> | 
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| 352 | <p> Use QMessageBox::NoButton for the later parameters to have fewer | 
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| 353 | than three buttons in your message box. If you don't specify any | 
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| 354 | buttons at all, QMessageBox will provide an Ok button. | 
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| 355 | <p> One of the buttons can be OR-ed with the <tt>QMessageBox::Default</tt> | 
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| 356 | flag to make it the default button (clicked when Enter is | 
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| 357 | pressed). | 
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| 358 | <p> One of the buttons can be OR-ed with the <tt>QMessageBox::Escape</tt> | 
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| 359 | flag to make it the cancel or close button (clicked when Escape is | 
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| 360 | pressed). | 
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| 361 | <p> Example: | 
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| 362 | <pre> | 
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| 363 | QMessageBox mb( "Application Name", | 
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| 364 | "Hardware failure.\n\nDisk error detected\nDo you want to stop?", | 
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| 365 | QMessageBox::<a href="#Icon-enum">Question</a>, | 
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| 366 | QMessageBox::Yes | QMessageBox::Default, | 
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| 367 | QMessageBox::No  | QMessageBox::Escape, | 
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| 368 | QMessageBox::<a href="qt.html#ButtonState-enum">NoButton</a> ); | 
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| 369 | if ( mb.<a href="qdialog.html#exec">exec</a>() == QMessageBox::No ) | 
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| 370 | // try again | 
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| 371 | </pre> | 
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| 372 |  | 
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| 373 | <p> If <em>parent</em> is 0, the message box becomes an application-global | 
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| 374 | modal dialog box. If <em>parent</em> is a widget, the message box | 
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| 375 | becomes modal relative to <em>parent</em>. | 
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| 376 | <p> If <em>modal</em> is TRUE the message box is modal; otherwise it | 
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| 377 | is modeless. | 
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| 378 | <p> The <em>parent</em>, <em>name</em>, <em>modal</em>, and <em>f</em> arguments are passed to | 
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| 379 | the <a href="qdialog.html">QDialog</a> constructor. | 
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| 380 | <p> <p>See also <a href="qwidget.html#caption-prop">caption</a>, <a href="#text-prop">text</a>, and <a href="#icon-prop">icon</a>. | 
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| 381 |  | 
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| 382 | <h3 class=fn><a name="~QMessageBox"></a>QMessageBox::~QMessageBox () | 
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| 383 | </h3> | 
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| 384 | Destroys the message box. | 
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| 385 |  | 
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| 386 | <h3 class=fn>void <a name="about"></a>QMessageBox::about ( <a href="qwidget.html">QWidget</a> * parent, const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text )<tt> [static]</tt> | 
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| 387 | </h3> | 
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| 388 | Displays a simple about box with caption <em>caption</em> and text <em>text</em>. The about box's parent is <em>parent</em>. | 
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| 389 | <p> <a href="#about">about</a>() looks for a suitable icon in four locations: | 
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| 390 | <ol type=1> | 
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| 391 | <li> It prefers <a href="qwidget.html#icon">parent->icon()</a> if that exists. | 
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| 392 | <li> If not, it tries the top-level widget containing <em>parent</em>. | 
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| 393 | <li> If that fails, it tries the <a href="qapplication.html#mainWidget">main widget.</a> | 
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| 394 | <li> As a last resort it uses the Information icon. | 
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| 395 | </ol> | 
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| 396 | <p> The about box has a single button labelled "OK". | 
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| 397 | <p> <p>See also <a href="qwidget.html#icon-prop">QWidget::icon</a> and <a href="qapplication.html#mainWidget">QApplication::mainWidget</a>(). | 
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| 398 |  | 
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| 399 | <p>Examples: <a href="qaction-application-example.html#x1137">action/application.cpp</a>, <a href="simple-application-example.html#x1555">application/application.cpp</a>, <a href="canvas-chart-example.html#x2886">chart/chartform.cpp</a>, <a href="helpviewer-example.html#x994">helpviewer/helpwindow.cpp</a>, <a href="mdi-example.html#x2036">mdi/application.cpp</a>, <a href="menu-example.html#x1874">menu/menu.cpp</a>, and <a href="themes-example.html#x330">themes/themes.cpp</a>. | 
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| 400 | <h3 class=fn>void <a name="aboutQt"></a>QMessageBox::aboutQt ( <a href="qwidget.html">QWidget</a> * parent, const <a href="qstring.html">QString</a> & caption = QString::null )<tt> [static]</tt> | 
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| 401 | </h3> | 
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| 402 | Displays a simple message box about Qt, with caption <em>caption</em> | 
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| 403 | and centered over <em>parent</em> (if <em>parent</em> is not 0). The message | 
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| 404 | includes the version number of Qt being used by the application. | 
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| 405 | <p> This is useful for inclusion in the Help menu of an application. | 
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| 406 | See the examples/menu/menu.cpp example. | 
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| 407 | <p> <a href="qapplication.html">QApplication</a> provides this functionality as a slot. | 
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| 408 | <p> <p>See also <a href="qapplication.html#aboutQt">QApplication::aboutQt</a>(). | 
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| 409 |  | 
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| 410 | <p>Examples: <a href="qaction-application-example.html#x1138">action/application.cpp</a>, <a href="simple-application-example.html#x1556">application/application.cpp</a>, <a href="canvas-chart-example.html#x2887">chart/chartform.cpp</a>, <a href="helpviewer-example.html#x995">helpviewer/helpwindow.cpp</a>, <a href="menu-example.html#x1875">menu/menu.cpp</a>, <a href="themes-example.html#x331">themes/themes.cpp</a>, and <a href="trivial-nsplugin-example.html#x2736">trivial/trivial.cpp</a>. | 
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| 411 | <h3 class=fn>void <a name="adjustSize"></a>QMessageBox::adjustSize ()<tt> [virtual]</tt> | 
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| 412 | </h3> | 
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| 413 | Adjusts the size of the message box to fit the contents just before | 
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| 414 | <a href="qdialog.html#exec">QDialog::exec</a>() or <a href="qdialog.html#show">QDialog::show</a>() is called. | 
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| 415 | <p> This function will not be called if the message box has been explicitly | 
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| 416 | resized before showing it. | 
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| 417 |  | 
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| 418 | <p>Reimplemented from <a href="qwidget.html#adjustSize">QWidget</a>. | 
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| 419 | <h3 class=fn><a href="qstring.html">QString</a> <a name="buttonText"></a>QMessageBox::buttonText ( int button ) const | 
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| 420 | </h3> | 
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| 421 | Returns the text of the message box button <em>button</em>, or | 
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| 422 | <a href="qstring.html#QString-null">QString::null</a> if the message box does not contain the button. | 
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| 423 | <p> <p>See also <a href="#setButtonText">setButtonText</a>(). | 
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| 424 |  | 
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| 425 | <h3 class=fn>int <a name="critical"></a>QMessageBox::critical ( <a href="qwidget.html">QWidget</a> * parent, const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, int button0, int button1, int button2 = 0 )<tt> [static]</tt> | 
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| 426 | </h3> | 
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| 427 | Opens a critical message box with the caption <em>caption</em> and the | 
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| 428 | text <em>text</em>. The dialog may have up to three buttons. Each of the | 
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| 429 | button parameters, <em>button0</em>, <em>button1</em> and <em>button2</em> may be | 
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| 430 | set to one of the following values: | 
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| 431 | <p> <ul> | 
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| 432 | <li> QMessageBox::NoButton | 
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| 433 | <li> QMessageBox::Ok | 
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| 434 | <li> QMessageBox::Cancel | 
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| 435 | <li> QMessageBox::Yes | 
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| 436 | <li> QMessageBox::No | 
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| 437 | <li> QMessageBox::Abort | 
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| 438 | <li> QMessageBox::Retry | 
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| 439 | <li> QMessageBox::Ignore | 
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| 440 | <li> QMessageBox::YesAll | 
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| 441 | <li> QMessageBox::NoAll | 
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| 442 | </ul> | 
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| 443 | <p> If you don't want all three buttons, set the last button, or last | 
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| 444 | two buttons to QMessageBox::NoButton. | 
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| 445 | <p> One button can be OR-ed with <tt>QMessageBox::Default</tt>, and one | 
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| 446 | button can be OR-ed with <tt>QMessageBox::Escape</tt>. | 
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| 447 | <p> Returns the identity (QMessageBox::Ok, or QMessageBox::No, etc.) | 
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| 448 | of the button that was clicked. | 
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| 449 | <p> If <em>parent</em> is 0, the message box becomes an application-global | 
|---|
| 450 | modal dialog box. If <em>parent</em> is a widget, the message box | 
|---|
| 451 | becomes modal relative to <em>parent</em>. | 
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| 452 | <p> <p>See also <a href="#information">information</a>(), <a href="#question">question</a>(), and <a href="#warning">warning</a>(). | 
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| 453 |  | 
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| 454 | <p>Examples: <a href="archivesearch-example.html#x478">network/archivesearch/archivedialog.ui.h</a>, <a href="ftpclient-example.html#x767">network/ftpclient/ftpmainwindow.ui.h</a>, <a href="process-example.html#x96">process/process.cpp</a>, and <a href="outliner-example.html#x1917">xml/outliner/outlinetree.cpp</a>. | 
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| 455 | <h3 class=fn>int <a name="critical-2"></a>QMessageBox::critical ( <a href="qwidget.html">QWidget</a> * parent, const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, const <a href="qstring.html">QString</a> & button0Text = QString::null, const <a href="qstring.html">QString</a> & button1Text = QString::null, const <a href="qstring.html">QString</a> & button2Text = QString::null, int defaultButtonNumber = 0, int escapeButtonNumber = -1 )<tt> [static]</tt> | 
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| 456 | </h3> | 
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| 457 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function. | 
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| 458 | <p> Displays a critical error message box with a caption, a text, and | 
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| 459 | 1, 2 or 3 buttons. Returns the number of the button that was | 
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| 460 | clicked (0, 1 or 2). | 
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| 461 | <p> <em>button0Text</em> is the text of the first button, and is optional. | 
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| 462 | If <em>button0Text</em> is not supplied, "OK" (translated) will be used. | 
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| 463 | <em>button1Text</em> is the text of the second button, and is optional, | 
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| 464 | and <em>button2Text</em> is the text of the third button, and is | 
|---|
| 465 | optional. <em>defaultButtonNumber</em> (0, 1 or 2) is the index of the | 
|---|
| 466 | default button; pressing Return or Enter is the same as clicking | 
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| 467 | the default button. It defaults to 0 (the first button). <em>escapeButtonNumber</em> is the index of the Escape button; pressing | 
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| 468 | Escape is the same as clicking this button. It defaults to -1; | 
|---|
| 469 | supply 0, 1, or 2 to make pressing Escape equivalent to clicking | 
|---|
| 470 | the relevant button. | 
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| 471 | <p> If <em>parent</em> is 0, the message box becomes an application-global | 
|---|
| 472 | modal dialog box. If <em>parent</em> is a widget, the message box | 
|---|
| 473 | becomes modal relative to <em>parent</em>. | 
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| 474 | <p> <p>See also <a href="#information">information</a>(), <a href="#question">question</a>(), and <a href="#warning">warning</a>(). | 
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| 475 |  | 
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| 476 | <h3 class=fn><a href="qmessagebox.html#Icon-enum">Icon</a> <a name="icon"></a>QMessageBox::icon () const | 
|---|
| 477 | </h3><p>Returns the message box's icon. | 
|---|
| 478 | See the <a href="qmessagebox.html#icon-prop">"icon"</a> property for details. | 
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| 479 | <h3 class=fn>const <a href="qpixmap.html">QPixmap</a> * <a name="iconPixmap"></a>QMessageBox::iconPixmap () const | 
|---|
| 480 | </h3><p>Returns the current icon. | 
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| 481 | See the <a href="qmessagebox.html#iconPixmap-prop">"iconPixmap"</a> property for details. | 
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| 482 | <h3 class=fn>int <a name="information"></a>QMessageBox::information ( <a href="qwidget.html">QWidget</a> * parent, const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, int button0, int button1 = 0, int button2 = 0 )<tt> [static]</tt> | 
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| 483 | </h3> | 
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| 484 | Opens an information message box with the caption <em>caption</em> and | 
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| 485 | the text <em>text</em>. The dialog may have up to three buttons. Each of | 
|---|
| 486 | the buttons, <em>button0</em>, <em>button1</em> and <em>button2</em> may be set to | 
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| 487 | one of the following values: | 
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| 488 | <p> <ul> | 
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| 489 | <li> QMessageBox::NoButton | 
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| 490 | <li> QMessageBox::Ok | 
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| 491 | <li> QMessageBox::Cancel | 
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| 492 | <li> QMessageBox::Yes | 
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| 493 | <li> QMessageBox::No | 
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| 494 | <li> QMessageBox::Abort | 
|---|
| 495 | <li> QMessageBox::Retry | 
|---|
| 496 | <li> QMessageBox::Ignore | 
|---|
| 497 | <li> QMessageBox::YesAll | 
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| 498 | <li> QMessageBox::NoAll | 
|---|
| 499 | </ul> | 
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| 500 | <p> If you don't want all three buttons, set the last button, or last | 
|---|
| 501 | two buttons to QMessageBox::NoButton. | 
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| 502 | <p> One button can be OR-ed with <tt>QMessageBox::Default</tt>, and one | 
|---|
| 503 | button can be OR-ed with <tt>QMessageBox::Escape</tt>. | 
|---|
| 504 | <p> Returns the identity (QMessageBox::Ok, or QMessageBox::No, etc.) | 
|---|
| 505 | of the button that was clicked. | 
|---|
| 506 | <p> If <em>parent</em> is 0, the message box becomes an application-global | 
|---|
| 507 | modal dialog box. If <em>parent</em> is a widget, the message box | 
|---|
| 508 | becomes modal relative to <em>parent</em>. | 
|---|
| 509 | <p> <p>See also <a href="#question">question</a>(), <a href="#warning">warning</a>(), and <a href="#critical">critical</a>(). | 
|---|
| 510 |  | 
|---|
| 511 | <p>Examples: <a href="qaction-application-example.html#x1139">action/application.cpp</a>, <a href="simple-application-example.html#x1557">application/application.cpp</a>, <a href="dirview-example.html#x1695">dirview/dirview.cpp</a>, <a href="fileiconview-example.html#x859">fileiconview/qfileiconview.cpp</a>, <a href="picture-example.html#x110">picture/picture.cpp</a>, <a href="qwerty-example.html#x373">qwerty/qwerty.cpp</a>, and <a href="qaxserver-example-simple.html#x2524">simple/main.cpp</a>. | 
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| 512 | <h3 class=fn>int <a name="information-2"></a>QMessageBox::information ( <a href="qwidget.html">QWidget</a> * parent, const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, const <a href="qstring.html">QString</a> & button0Text = QString::null, const <a href="qstring.html">QString</a> & button1Text = QString::null, const <a href="qstring.html">QString</a> & button2Text = QString::null, int defaultButtonNumber = 0, int escapeButtonNumber = -1 )<tt> [static]</tt> | 
|---|
| 513 | </h3> | 
|---|
| 514 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function. | 
|---|
| 515 | <p> Displays an information message box with caption <em>caption</em>, text | 
|---|
| 516 | <em>text</em> and one, two or three buttons. Returns the index of the | 
|---|
| 517 | button that was clicked (0, 1 or 2). | 
|---|
| 518 | <p> <em>button0Text</em> is the text of the first button, and is optional. | 
|---|
| 519 | If <em>button0Text</em> is not supplied, "OK" (translated) will be used. | 
|---|
| 520 | <em>button1Text</em> is the text of the second button, and is optional. | 
|---|
| 521 | <em>button2Text</em> is the text of the third button, and is optional. | 
|---|
| 522 | <em>defaultButtonNumber</em> (0, 1 or 2) is the index of the default | 
|---|
| 523 | button; pressing Return or Enter is the same as clicking the | 
|---|
| 524 | default button. It defaults to 0 (the first button). <em>escapeButtonNumber</em> is the index of the Escape button; pressing | 
|---|
| 525 | Escape is the same as clicking this button. It defaults to -1; | 
|---|
| 526 | supply 0, 1 or 2 to make pressing Escape equivalent to clicking | 
|---|
| 527 | the relevant button. | 
|---|
| 528 | <p> If <em>parent</em> is 0, the message box becomes an application-global | 
|---|
| 529 | modal dialog box. If <em>parent</em> is a widget, the message box | 
|---|
| 530 | becomes modal relative to <em>parent</em>. | 
|---|
| 531 | <p> Note: If you do not specify an Escape button then if the Escape | 
|---|
| 532 | button is pressed then -1 will be returned.  It is suggested that | 
|---|
| 533 | you specify an Escape button to prevent this from happening. | 
|---|
| 534 | <p> <p>See also <a href="#question">question</a>(), <a href="#warning">warning</a>(), and <a href="#critical">critical</a>(). | 
|---|
| 535 |  | 
|---|
| 536 | <h3 class=fn>int <a name="message"></a>QMessageBox::message ( const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, const <a href="qstring.html">QString</a> & buttonText = QString::null, <a href="qwidget.html">QWidget</a> * parent = 0, const char * = 0 )<tt> [static]</tt> | 
|---|
| 537 | </h3> | 
|---|
| 538 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code. | 
|---|
| 539 | <p> Opens a modal message box directly using the specified parameters. | 
|---|
| 540 | <p> Please use <a href="#information">information</a>(), <a href="#warning">warning</a>(), <a href="#question">question</a>(), or <a href="#critical">critical</a>() instead. | 
|---|
| 541 |  | 
|---|
| 542 | <p>Example: <a href="grapher-nsplugin-example.html#x2750">grapher/grapher.cpp</a>. | 
|---|
| 543 | <h3 class=fn>bool <a name="query"></a>QMessageBox::query ( const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, const <a href="qstring.html">QString</a> & yesButtonText = QString::null, const <a href="qstring.html">QString</a> & noButtonText = QString::null, <a href="qwidget.html">QWidget</a> * parent = 0, const char * = 0 )<tt> [static]</tt> | 
|---|
| 544 | </h3> | 
|---|
| 545 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code. | 
|---|
| 546 | <p> Queries the user using a modal message box with two buttons. | 
|---|
| 547 | Note that <em>caption</em> is not always shown, it depends on the window manager. | 
|---|
| 548 | <p> Please use <a href="#information">information</a>(), <a href="#question">question</a>(), <a href="#warning">warning</a>(), or <a href="#critical">critical</a>() instead. | 
|---|
| 549 |  | 
|---|
| 550 | <h3 class=fn>int <a name="question"></a>QMessageBox::question ( <a href="qwidget.html">QWidget</a> * parent, const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, int button0, int button1 = 0, int button2 = 0 )<tt> [static]</tt> | 
|---|
| 551 | </h3> | 
|---|
| 552 | Opens a question message box with the caption <em>caption</em> and the | 
|---|
| 553 | text <em>text</em>. The dialog may have up to three buttons. Each of the | 
|---|
| 554 | buttons, <em>button0</em>, <em>button1</em> and <em>button2</em> may be set to one | 
|---|
| 555 | of the following values: | 
|---|
| 556 | <p> <ul> | 
|---|
| 557 | <li> QMessageBox::NoButton | 
|---|
| 558 | <li> QMessageBox::Ok | 
|---|
| 559 | <li> QMessageBox::Cancel | 
|---|
| 560 | <li> QMessageBox::Yes | 
|---|
| 561 | <li> QMessageBox::No | 
|---|
| 562 | <li> QMessageBox::Abort | 
|---|
| 563 | <li> QMessageBox::Retry | 
|---|
| 564 | <li> QMessageBox::Ignore | 
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| 565 | <li> QMessageBox::YesAll | 
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| 566 | <li> QMessageBox::NoAll | 
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| 567 | </ul> | 
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| 568 | <p> If you don't want all three buttons, set the last button, or last | 
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| 569 | two buttons to QMessageBox::NoButton. | 
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| 570 | <p> One button can be OR-ed with <tt>QMessageBox::Default</tt>, and one | 
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| 571 | button can be OR-ed with <tt>QMessageBox::Escape</tt>. | 
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| 572 | <p> Returns the identity (QMessageBox::Yes, or QMessageBox::No, etc.) | 
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| 573 | of the button that was clicked. | 
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| 574 | <p> If <em>parent</em> is 0, the message box becomes an application-global | 
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| 575 | modal dialog box. If <em>parent</em> is a widget, the message box | 
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| 576 | becomes modal relative to <em>parent</em>. | 
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| 577 | <p> <p>See also <a href="#information">information</a>(), <a href="#warning">warning</a>(), and <a href="#critical">critical</a>(). | 
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| 578 |  | 
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| 579 | <h3 class=fn>int <a name="question-2"></a>QMessageBox::question ( <a href="qwidget.html">QWidget</a> * parent, const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, const <a href="qstring.html">QString</a> & button0Text = QString::null, const <a href="qstring.html">QString</a> & button1Text = QString::null, const <a href="qstring.html">QString</a> & button2Text = QString::null, int defaultButtonNumber = 0, int escapeButtonNumber = -1 )<tt> [static]</tt> | 
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| 580 | </h3> | 
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| 581 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function. | 
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| 582 | <p> Displays a question message box with caption <em>caption</em>, text <em>text</em> and one, two or three buttons. Returns the index of the | 
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| 583 | button that was clicked (0, 1 or 2). | 
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| 584 | <p> <em>button0Text</em> is the text of the first button, and is optional. | 
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| 585 | If <em>button0Text</em> is not supplied, "OK" (translated) will be used. | 
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| 586 | <em>button1Text</em> is the text of the second button, and is optional. | 
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| 587 | <em>button2Text</em> is the text of the third button, and is optional. | 
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| 588 | <em>defaultButtonNumber</em> (0, 1 or 2) is the index of the default | 
|---|
| 589 | button; pressing Return or Enter is the same as clicking the | 
|---|
| 590 | default button. It defaults to 0 (the first button). <em>escapeButtonNumber</em> is the index of the Escape button; pressing | 
|---|
| 591 | Escape is the same as clicking this button. It defaults to -1; | 
|---|
| 592 | supply 0, 1 or 2 to make pressing Escape equivalent to clicking | 
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| 593 | the relevant button. | 
|---|
| 594 | <p> If <em>parent</em> is 0, the message box becomes an application-global | 
|---|
| 595 | modal dialog box. If <em>parent</em> is a widget, the message box | 
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| 596 | becomes modal relative to <em>parent</em>. | 
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| 597 | <p> Note: If you do not specify an Escape button then if the Escape | 
|---|
| 598 | button is pressed then -1 will be returned.  It is suggested that | 
|---|
| 599 | you specify an Escape button to prevent this from happening. | 
|---|
| 600 | <p> <p>See also <a href="#information">information</a>(), <a href="#warning">warning</a>(), and <a href="#critical">critical</a>(). | 
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| 601 |  | 
|---|
| 602 | <h3 class=fn>void <a name="setButtonText"></a>QMessageBox::setButtonText ( int button, const <a href="qstring.html">QString</a> & text ) | 
|---|
| 603 | </h3> | 
|---|
| 604 | Sets the text of the message box button <em>button</em> to <em>text</em>. | 
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| 605 | Setting the text of a button that is not in the message box is | 
|---|
| 606 | silently ignored. | 
|---|
| 607 | <p> <p>See also <a href="#buttonText">buttonText</a>(). | 
|---|
| 608 |  | 
|---|
| 609 | <h3 class=fn>void <a name="setIcon"></a>QMessageBox::setIcon ( <a href="qmessagebox.html#Icon-enum">Icon</a> ) | 
|---|
| 610 | </h3><p>Sets the message box's icon. | 
|---|
| 611 | See the <a href="qmessagebox.html#icon-prop">"icon"</a> property for details. | 
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| 612 | <h3 class=fn>void <a name="setIconPixmap"></a>QMessageBox::setIconPixmap ( const <a href="qpixmap.html">QPixmap</a> & ) | 
|---|
| 613 | </h3><p>Sets the current icon. | 
|---|
| 614 | See the <a href="qmessagebox.html#iconPixmap-prop">"iconPixmap"</a> property for details. | 
|---|
| 615 | <h3 class=fn>void <a name="setText"></a>QMessageBox::setText ( const <a href="qstring.html">QString</a> & ) | 
|---|
| 616 | </h3><p>Sets the message box text to be displayed. | 
|---|
| 617 | See the <a href="qmessagebox.html#text-prop">"text"</a> property for details. | 
|---|
| 618 | <h3 class=fn>void <a name="setTextFormat"></a>QMessageBox::setTextFormat ( <a href="qt.html#TextFormat-enum">TextFormat</a> ) | 
|---|
| 619 | </h3><p>Sets the format of the text displayed by the message box. | 
|---|
| 620 | See the <a href="qmessagebox.html#textFormat-prop">"textFormat"</a> property for details. | 
|---|
| 621 | <h3 class=fn><a href="qpixmap.html">QPixmap</a> <a name="standardIcon"></a>QMessageBox::standardIcon ( <a href="qmessagebox.html#Icon-enum">Icon</a> icon )<tt> [static]</tt> | 
|---|
| 622 | </h3> | 
|---|
| 623 | Returns the pixmap used for a standard icon. This allows the | 
|---|
| 624 | pixmaps to be used in more complex message boxes. <em>icon</em> | 
|---|
| 625 | specifies the required icon, e.g. QMessageBox::Question, | 
|---|
| 626 | QMessageBox::Information, QMessageBox::Warning or | 
|---|
| 627 | QMessageBox::Critical. | 
|---|
| 628 |  | 
|---|
| 629 | <h3 class=fn><a href="qpixmap.html">QPixmap</a> <a name="standardIcon-2"></a>QMessageBox::standardIcon ( <a href="qmessagebox.html#Icon-enum">Icon</a> icon, <a href="qt.html#GUIStyle-enum">GUIStyle</a> style )<tt> [static]</tt> | 
|---|
| 630 | </h3> | 
|---|
| 631 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code. | 
|---|
| 632 | <p> Returns the pixmap used for a standard icon. This | 
|---|
| 633 | allows the pixmaps to be used in more complex message boxes. | 
|---|
| 634 | <em>icon</em> specifies the required icon, e.g. QMessageBox::Information, | 
|---|
| 635 | QMessageBox::Warning or QMessageBox::Critical. | 
|---|
| 636 | <p> <em>style</em> is unused. | 
|---|
| 637 |  | 
|---|
| 638 | <h3 class=fn><a href="qstring.html">QString</a> <a name="text"></a>QMessageBox::text () const | 
|---|
| 639 | </h3><p>Returns the message box text to be displayed. | 
|---|
| 640 | See the <a href="qmessagebox.html#text-prop">"text"</a> property for details. | 
|---|
| 641 | <h3 class=fn><a href="qt.html#TextFormat-enum">TextFormat</a> <a name="textFormat"></a>QMessageBox::textFormat () const | 
|---|
| 642 | </h3><p>Returns the format of the text displayed by the message box. | 
|---|
| 643 | See the <a href="qmessagebox.html#textFormat-prop">"textFormat"</a> property for details. | 
|---|
| 644 | <h3 class=fn>int <a name="warning"></a>QMessageBox::warning ( <a href="qwidget.html">QWidget</a> * parent, const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, int button0, int button1, int button2 = 0 )<tt> [static]</tt> | 
|---|
| 645 | </h3> | 
|---|
| 646 | Opens a warning message box with the caption <em>caption</em> and the | 
|---|
| 647 | text <em>text</em>. The dialog may have up to three buttons. Each of the | 
|---|
| 648 | button parameters, <em>button0</em>, <em>button1</em> and <em>button2</em> may be | 
|---|
| 649 | set to one of the following values: | 
|---|
| 650 | <p> <ul> | 
|---|
| 651 | <li> QMessageBox::NoButton | 
|---|
| 652 | <li> QMessageBox::Ok | 
|---|
| 653 | <li> QMessageBox::Cancel | 
|---|
| 654 | <li> QMessageBox::Yes | 
|---|
| 655 | <li> QMessageBox::No | 
|---|
| 656 | <li> QMessageBox::Abort | 
|---|
| 657 | <li> QMessageBox::Retry | 
|---|
| 658 | <li> QMessageBox::Ignore | 
|---|
| 659 | <li> QMessageBox::YesAll | 
|---|
| 660 | <li> QMessageBox::NoAll | 
|---|
| 661 | </ul> | 
|---|
| 662 | <p> If you don't want all three buttons, set the last button, or last | 
|---|
| 663 | two buttons to QMessageBox::NoButton. | 
|---|
| 664 | <p> One button can be OR-ed with <tt>QMessageBox::Default</tt>, and one | 
|---|
| 665 | button can be OR-ed with <tt>QMessageBox::Escape</tt>. | 
|---|
| 666 | <p> Returns the identity (QMessageBox::Ok, or QMessageBox::No, etc.) | 
|---|
| 667 | of the button that was clicked. | 
|---|
| 668 | <p> If <em>parent</em> is 0, the message box becomes an application-global | 
|---|
| 669 | modal dialog box. If <em>parent</em> is a widget, the message box | 
|---|
| 670 | becomes modal relative to <em>parent</em>. | 
|---|
| 671 | <p> <p>See also <a href="#information">information</a>(), <a href="#question">question</a>(), and <a href="#critical">critical</a>(). | 
|---|
| 672 |  | 
|---|
| 673 | <p>Examples: <a href="tutorial2-05.html#x2566">chart/chartform.cpp</a>, <a href="i18n-example.html#x1940">i18n/main.cpp</a>, <a href="mail-example.html#x708">network/mail/smtp.cpp</a>, <a href="qwerty-example.html#x374">qwerty/qwerty.cpp</a>, <a href="showimg-example.html#x1333">showimg/showimg.cpp</a>, and <a href="sound-example.html#x2812">sound/sound.cpp</a>. | 
|---|
| 674 | <h3 class=fn>int <a name="warning-2"></a>QMessageBox::warning ( <a href="qwidget.html">QWidget</a> * parent, const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & text, const <a href="qstring.html">QString</a> & button0Text = QString::null, const <a href="qstring.html">QString</a> & button1Text = QString::null, const <a href="qstring.html">QString</a> & button2Text = QString::null, int defaultButtonNumber = 0, int escapeButtonNumber = -1 )<tt> [static]</tt> | 
|---|
| 675 | </h3> | 
|---|
| 676 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function. | 
|---|
| 677 | <p> Displays a warning message box with a caption, a text, and 1, 2 or | 
|---|
| 678 | 3 buttons. Returns the number of the button that was clicked (0, | 
|---|
| 679 | 1, or 2). | 
|---|
| 680 | <p> <em>button0Text</em> is the text of the first button, and is optional. | 
|---|
| 681 | If <em>button0Text</em> is not supplied, "OK" (translated) will be used. | 
|---|
| 682 | <em>button1Text</em> is the text of the second button, and is optional, | 
|---|
| 683 | and <em>button2Text</em> is the text of the third button, and is | 
|---|
| 684 | optional. <em>defaultButtonNumber</em> (0, 1 or 2) is the index of the | 
|---|
| 685 | default button; pressing Return or Enter is the same as clicking | 
|---|
| 686 | the default button. It defaults to 0 (the first button). <em>escapeButtonNumber</em> is the index of the Escape button; pressing | 
|---|
| 687 | Escape is the same as clicking this button. It defaults to -1; | 
|---|
| 688 | supply 0, 1, or 2 to make pressing Escape equivalent to clicking | 
|---|
| 689 | the relevant button. | 
|---|
| 690 | <p> If <em>parent</em> is 0, the message box becomes an application-global | 
|---|
| 691 | modal dialog box. If <em>parent</em> is a widget, the message box | 
|---|
| 692 | becomes modal relative to <em>parent</em>. | 
|---|
| 693 | <p> Note: If you do not specify an Escape button then if the Escape | 
|---|
| 694 | button is pressed then -1 will be returned.  It is suggested that | 
|---|
| 695 | you specify an Escape button to prevent this from happening. | 
|---|
| 696 | <p> <p>See also <a href="#information">information</a>(), <a href="#question">question</a>(), and <a href="#critical">critical</a>(). | 
|---|
| 697 |  | 
|---|
| 698 | <hr><h2>Property Documentation</h2> | 
|---|
| 699 | <h3 class=fn><a href="qmessagebox.html#Icon-enum">Icon</a> <a name="icon-prop"></a>icon</h3> | 
|---|
| 700 | <p>This property holds the message box's icon. | 
|---|
| 701 | <p>The icon of the message box can be one of the following predefined | 
|---|
| 702 | icons: | 
|---|
| 703 | <ul> | 
|---|
| 704 | <li> QMessageBox::NoIcon | 
|---|
| 705 | <li> QMessageBox::Question | 
|---|
| 706 | <li> QMessageBox::Information | 
|---|
| 707 | <li> QMessageBox::Warning | 
|---|
| 708 | <li> QMessageBox::Critical | 
|---|
| 709 | </ul> | 
|---|
| 710 | <p> The actual pixmap used for displaying the icon depends on the | 
|---|
| 711 | current <a href="qwidget.html#style">GUI style</a>. You can also set | 
|---|
| 712 | a custom pixmap icon using the <a href="#iconPixmap-prop">QMessageBox::iconPixmap</a> | 
|---|
| 713 | property. The default icon is QMessageBox::NoIcon. | 
|---|
| 714 | <p> <p>See also <a href="#iconPixmap-prop">iconPixmap</a>. | 
|---|
| 715 |  | 
|---|
| 716 | <p>Set this property's value with <a href="#setIcon">setIcon</a>() and get this property's value with <a href="#icon">icon</a>(). | 
|---|
| 717 | <h3 class=fn><a href="qpixmap.html">QPixmap</a> <a name="iconPixmap-prop"></a>iconPixmap</h3> | 
|---|
| 718 | <p>This property holds the current icon. | 
|---|
| 719 | <p>The icon currently used by the message box. Note that it's often | 
|---|
| 720 | hard to draw one pixmap that looks appropriate in both <a href="motif-extension.html#Motif">Motif</a> and | 
|---|
| 721 | Windows GUI styles; you may want to draw two pixmaps. | 
|---|
| 722 | <p> <p>See also <a href="#icon-prop">icon</a>. | 
|---|
| 723 |  | 
|---|
| 724 | <p>Set this property's value with <a href="#setIconPixmap">setIconPixmap</a>() and get this property's value with <a href="#iconPixmap">iconPixmap</a>(). | 
|---|
| 725 | <h3 class=fn><a href="qstring.html">QString</a> <a name="text-prop"></a>text</h3> | 
|---|
| 726 | <p>This property holds the message box text to be displayed. | 
|---|
| 727 | <p>The text will be interpreted either as a plain text or as rich | 
|---|
| 728 | text, depending on the text format setting (<a href="#textFormat-prop">QMessageBox::textFormat</a>). The default setting is <a href="qt.html#TextFormat-enum">AutoText</a>, i.e. | 
|---|
| 729 | the message box will try to auto-detect the format of the text. | 
|---|
| 730 | <p> The default value of this property is <a href="qstring.html#QString-null">QString::null</a>. | 
|---|
| 731 | <p> <p>See also <a href="#textFormat-prop">textFormat</a>. | 
|---|
| 732 |  | 
|---|
| 733 | <p>Set this property's value with <a href="#setText">setText</a>() and get this property's value with <a href="#text">text</a>(). | 
|---|
| 734 | <h3 class=fn><a href="qt.html#TextFormat-enum">TextFormat</a> <a name="textFormat-prop"></a>textFormat</h3> | 
|---|
| 735 | <p>This property holds the format of the text displayed by the message box. | 
|---|
| 736 | <p>The current text format used by the message box. See the <a href="qt.html#TextFormat-enum">Qt::TextFormat</a> enum for an explanation of the possible options. | 
|---|
| 737 | <p> The default format is <a href="qt.html#TextFormat-enum">AutoText</a>. | 
|---|
| 738 | <p> <p>See also <a href="#text-prop">text</a>. | 
|---|
| 739 |  | 
|---|
| 740 | <p>Set this property's value with <a href="#setTextFormat">setTextFormat</a>() and get this property's value with <a href="#textFormat">textFormat</a>(). | 
|---|
| 741 | <!-- eof --> | 
|---|
| 742 | <hr><p> | 
|---|
| 743 | This file is part of the <a href="index.html">Qt toolkit</a>. | 
|---|
| 744 | Copyright © 1995-2007 | 
|---|
| 745 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center> | 
|---|
| 746 | <table width=100% cellspacing=0 border=0><tr> | 
|---|
| 747 | <td>Copyright © 2007 | 
|---|
| 748 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> | 
|---|
| 749 | <td align=right><div align=right>Qt 3.3.8</div> | 
|---|
| 750 | </table></div></address></body> | 
|---|
| 751 | </html> | 
|---|