| [190] | 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/extensions/motif/doc/index.doc:3 -->
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| 6 | <title>Qt Motif Extension</title>
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| 18 | <td valign=center>
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| 19 | <a href="index.html">
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| 20 | <font color="#004faf">Home</font></a>
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| 22 | <font color="#004faf">All Classes</font></a>
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| 23 | | <a href="mainclasses.html">
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| 24 | <font color="#004faf">Main Classes</font></a>
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| 26 | <font color="#004faf">Annotated</font></a>
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| 30 | <font color="#004faf">Functions</font></a>
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| 31 | </td>
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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>Qt Motif Extension</h1>
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| 33 |
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| 34 |
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| 35 | <p> <!-- index Motif --><a name="Motif"></a>
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| 36 | <p> This module is part of the <a href="commercialeditions.html">Qt Enterprise
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| 37 | Edition</a> and is <em>not</em> part of the Free or Non-Commercial
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| 38 | Editions.
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| 39 | <p> <h2> Introduction
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| 40 | </h2>
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| 41 | <a name="1"></a><p> The Qt Motif Extension assists the migration of old Xt and Motif based
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| 42 | applications to the more comfortable Qt toolkit. This extension
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| 43 | replaces the older Xt/Motif Support Extension included with earlier
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| 44 | versions of Qt.
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| 45 | <p> The Qt Motif Extension consists of the following classes:
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| 46 | <p> <ul>
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| 47 | <li> <a href="qmotif.html">QMotif</a> - Provides the basis of the Qt Motif Extension.
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| 48 | <li> <a href="qmotifwidget.html">QMotifWidget</a> - Provides the <a href="qwidget.html">QWidget</a> API for Motif widgets.
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| 49 | <li> <a href="qmotifdialog.html">QMotifDialog</a> - Provides the <a href="qdialog.html">QDialog</a> API for Motif dialogs.
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| 50 | <li> <a href="qxtwidget.html">QXtWidget</a> - The Xt/Motif integration widget from the previous
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| 51 | Xt/Motif extension. This class is unsupported and has many known
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| 52 | problems and limitations. It is provided only to keep existing source
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| 53 | working; it should not be used in new code.
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| 54 | </ul>
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| 55 | <p> <h3> Additional Documentation
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| 56 | </h3>
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| 57 | <a name="1-1"></a><p> <ul>
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| 58 | <p> <li> <a href="motif-examples.html">Examples</a>
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| 59 | <li> <a href="motif-walkthrough.html">Migration Walkthrough</a> - A
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| 60 | complete migration of a Motif based program to the Qt toolkit.
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| 61 | <p> </ul>
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| 62 | <p> <h2> Common Problems
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| 63 | </h2>
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| 64 | <a name="2"></a><p> <h3> Incorrect CDE Color Scheme
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| 65 | </h3>
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| 66 | <a name="2-1"></a><p> <a href="qmotifwidget.html">QMotifWidget</a> and <a href="qmotifdialog.html">QMotifDialog</a> will use the same Visual, Colormap
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| 67 | and color depth that <a href="qapplication.html">QApplication</a> uses. When using CDE, the color
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| 68 | scheme may be incorrect when using a Visual, Colormap and color depth
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| 69 | that is not the default. To work around this problem, add the
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| 70 | following resource string to your startup files (for example,
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| 71 | <tt>$HOME/.dt/sessions/current/dt.resources</tt>):
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| 72 | <p> <pre>
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| 73 | *userColorObj: false
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| 74 | </pre>
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| 75 |
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| 76 | <p> <h3> X11 Header Conflicts
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| 77 | </h3>
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| 78 | <a name="2-2"></a><p> The X11 headers define some constants that conflict with the Qt
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| 79 | headers. The solution is to include all Qt headers first, followed by
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| 80 | headers from this extension, and all Xt/Motif and X11 headers last.
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| 81 | For example:
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| 82 | <p> <pre>
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| 83 | // Qt headers first
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| 84 | #include <<a href="qapplication-h.html">qapplication.h</a>>
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| 85 | #include <<a href="qpushbutton-h.html">qpushbutton.h</a>>
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| 86 | #include <<a href="qsocket-h.html">qsocket.h</a>>
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| 87 | ...
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| 88 |
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| 89 | // QMotif* headers next
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| 90 | #include <<a href="qmotif-h.html">qmotif.h</a>>
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| 91 | #include <<a href="qmotifdialog-h.html">qmotifdialog.h</a>>
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| 92 | #include <<a href="qmotifwidget-h.html">qmotifwidget.h</a>>
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| 93 |
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| 94 | // Xt/Motif and X11 headers last
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| 95 | #include <X11/Xlib.h>
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| 96 | #include <Xt/Intrinsic.h>
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| 97 | #include <Xm/Xm.h>
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| 98 | ...
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| 99 | </pre>
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| 100 |
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| 101 | <p> <h3> Multiple Screen Support
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| 102 | </h3>
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| 103 | <a name="2-3"></a><p> <a href="qmotifwidget.html">QMotifWidget</a> can be used together with <a href="qdesktopwidget.html">QDesktopWidget</a> to create
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| 104 | top-level windows on multiple screens. A common mistake is to create
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| 105 | a QMotifWidget on a non-default screen while the Xt/Motif widgets are
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| 106 | created on the default screen. The solution is to specify the screen
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| 107 | to both QMotifWidget and the Xt/Motif child. For example:
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| 108 | <p> <pre>
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| 109 | Display *dpy = QMotif::<a href="qmotif.html#x11Display">x11Display</a>();
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| 110 | Arg args[1];
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| 111 |
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| 112 | // make sure both QMotifWidget and the XmMainWindow are on screen 1
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| 113 | XtSetArg(args[0], XtNscreen, ScreenOfDisplay(dpy, 1));
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| 114 | <a href="qmotifwidget.html">QMotifWidget</a> *toplevel =
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| 115 | new <a href="qmotifwidget.html">QMotifWidget</a>(QApplication::<a href="qapplication.html#desktop">desktop</a>()->screen(1),
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| 116 | xmMainWindowWidgetClass, args, 1, "mainwindow");
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| 117 | </pre>
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| 118 |
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| 119 | <p>
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| 120 | <!-- eof -->
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| 121 | <p><address><hr><div align=center>
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| 122 | <table width=100% cellspacing=0 border=0><tr>
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| 123 | <td>Copyright © 2007
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| 124 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 125 | <td align=right><div align=right>Qt 3.3.8</div>
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| 126 | </table></div></address></body>
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