| 1 | /***
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| 2 | This file belongs to the Gotcha! distribution.
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| 3 | Copyright (C) 1998-2002 Thorsten Thielen <thth@c2226.de>
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| 4 |
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| 5 | This program is free software; you can redistribute it and/or modify
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| 6 | it under the terms of the GNU General Public License as published by
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| 7 | the Free Software Foundation; either version 2 of the License, or
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| 8 | (at your option) any later version.
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| 9 |
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| 10 | This program is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | GNU General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU General Public License
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| 16 | along with this program; if not, write to the Free Software
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| 17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 18 | ***/
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| 19 |
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| 20 | // ** CaptureWindow ******************************************************* /*fold00*/
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| 21 |
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| 22 | #define MAX_WAIT 15
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| 23 |
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| 24 | HBITMAP CaptureWindow (HWND hwnd, HWND hwndParent, PRECTL prcl, BOOL f)
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| 25 | {
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| 26 | #ifdef _DOLOGMEM_
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| 27 | LogMem("CaptureWindow", TRUE);
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| 28 | #endif
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| 29 | static PSZ pszData[4] = { "Display", NULL, NULL, NULL };
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| 30 | SIZEL sizlPage = {0, 0};
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| 31 | POINTL aptl[3];
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| 32 | LONG alData[2];
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| 33 | SWP swp;
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| 34 | SHORT sWidth, sHeight;
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| 35 | CHAR ach[32];
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| 36 |
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| 37 | // wait for the selected window to rise to the surface
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| 38 | if ((hwndParent != HWND_DESKTOP) && f)
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| 39 | {
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| 40 | WinSetWindowPos (hwndParent, HWND_TOP, 0,0, 0,0, SWP_ZORDER);
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| 41 | // FIXME uh, yukki! polling! but seems to be the easiest way for now.
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| 42 | for (USHORT i = 0; i < MAX_WAIT; i++)
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| 43 | {
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| 44 | _sleep2 (100);
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| 45 | WinQueryWindowPos (hwndParent, &swp);
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| 46 | if ((swp.hwndInsertBehind == HWND_TOP) ||
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| 47 | (swp.hwndInsertBehind == hwndSnapshot))
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| 48 | break;
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| 49 | else
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| 50 | {
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| 51 | // check if topmost window is a menu
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| 52 | WinQueryClassName (swp.hwndInsertBehind, sizeof (ach), ach);
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| 53 | if (stricmp (ach, "#4") == 0)
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| 54 | break;
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| 55 | }
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| 56 | }
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| 57 | }
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| 58 |
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| 59 | // if no capture rectangle given, we'll take the whole window
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| 60 | if (! prcl)
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| 61 | {
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| 62 | WinQueryWindowPos (hwnd, &swp);
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| 63 | sWidth = swp.cx;
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| 64 | sHeight = swp.cy;
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| 65 | }
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| 66 | else
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| 67 | {
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| 68 | sWidth = prcl->xRight-prcl->xLeft+1;
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| 69 | sHeight = prcl->yTop-prcl->yBottom+1;
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| 70 | }
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| 71 |
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| 72 | /* create the memory device context and presentation space so they
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| 73 | are compatible with the screen device context and presentation space */
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| 74 | HDC hdcMem =
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| 75 | DevOpenDC (hab, OD_MEMORY, "*", 4, PDEVOPENDATA (pszData), 0);
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| 76 | HPS hpsMem =
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| 77 | GpiCreatePS (hab, hdcMem, &sizlPage, PU_PELS| GPIA_ASSOC| GPIT_MICRO);
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| 78 |
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| 79 | // determine the device's plane/bit-count format
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| 80 | GpiQueryDeviceBitmapFormats (hpsMem, 2, alData);
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| 81 |
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| 82 | // FIXME even if it seems to work ...
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| 83 | if (alData[1] == 16)
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| 84 | alData[1] = 24;
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| 85 |
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| 86 | BITMAPINFOHEADER2 bmp;
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| 87 |
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| 88 | /* load the BITMAPINFOHEADER2 and BITMAPINFO2 structures. The sWidth and
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| 89 | sHeight fields specify the width and height of the destination rect. */
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| 90 | bmp.cbFix = ULONG (sizeof(BITMAPINFOHEADER2));
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| 91 | bmp.cx = sWidth;
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| 92 | bmp.cy = sHeight;
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| 93 | bmp.cPlanes = alData[0];
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| 94 | bmp.cBitCount = alData[1];
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| 95 |
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| 96 | bmp.ulCompression = BCA_UNCOMP;
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| 97 | /*SOME STUFF MISSING IN THIS STATEMENT: 1 << bmp.cPlanes) *
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| 98 | (1 << bmp.cBitCount)) + 31) / 32) * sHeight;*/
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| 99 | bmp.cxResolution = 0;
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| 100 | bmp.cyResolution = 0;
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| 101 | bmp.cclrUsed = 0;
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| 102 | bmp.cclrImportant = 0;
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| 103 |
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| 104 | bmp.usUnits = BRU_METRIC;
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| 105 | bmp.usReserved = 0;
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| 106 | bmp.usRecording = BRA_BOTTOMUP;
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| 107 | bmp.usRendering = BRH_NOTHALFTONED;
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| 108 | bmp.cSize1 = 0;
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| 109 | bmp.cSize2 = 0;
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| 110 | bmp.ulColorEncoding = BCE_RGB;
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| 111 | bmp.ulIdentifier = 0;
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| 112 |
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| 113 | // create a bit map that is compatible with the display
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| 114 | HBITMAP hbm = GpiCreateBitmap (hpsMem, &bmp, 0L, NULL, NULL/*pbmi*/);
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| 115 |
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| 116 | // associate the bit map and the memory presentation space
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| 117 | HBITMAP hbmOld = GpiSetBitmap (hpsMem, hbm);
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| 118 |
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| 119 | /* Copy the screen to the bit map. */
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| 120 | aptl[0].x = 0; /* Lower-left corner of destination rectangle */
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| 121 | aptl[0].y = 0; /* Lower-left corner of destination rectangle */
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| 122 | aptl[1].x = sWidth; /* Upper-right corner of destination rectangle */
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| 123 | aptl[1].y = sHeight; /* Upper-right corner of destination rectangle */
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| 124 |
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| 125 | if (! prcl)
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| 126 | {
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| 127 | aptl[2].x = 0; /* Lower-left corner of source rectangle */
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| 128 | aptl[2].y = 0; /* Lower-left corner of source rectangle */
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| 129 | }
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| 130 | else
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| 131 | {
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| 132 | aptl[2].x = prcl->xLeft; /* Lower-left corner of source rectangle */
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| 133 | aptl[2].y = prcl->yBottom; /* Lower-left corner of source rectangle */
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| 134 | }
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| 135 |
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| 136 | HPS hps;
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| 137 |
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| 138 | // esp. important if serial capture enabled: window may have been closed!
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| 139 | if (WinIsWindow (GETHAB, hwnd) || (hwnd == HWND_DESKTOP))
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| 140 | hps = WinGetPS (hwnd);
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| 141 | else
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| 142 | {
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| 143 | GpiDeleteBitmap (hbm);
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| 144 | DevCloseDC (hdcMem);
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| 145 | return NULL;
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| 146 | }
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| 147 |
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| 148 | GpiBitBlt (hpsMem, hps,
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| 149 | sizeof (aptl) / sizeof (POINTL), /* Number of points in aptl */
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| 150 | aptl, ROP_SRCCOPY, BBO_IGNORE);
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| 151 | SaveBitmap (hbm, hpsMem);
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| 152 |
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| 153 | // re-associate the previous bit map and the memory presentation space
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| 154 | GpiSetBitmap (hpsMem, hbmOld);
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| 155 |
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| 156 | GpiDeleteBitmap (hbm);
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| 157 | WinReleasePS (hps);
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| 158 | GpiDestroyPS (hps);
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| 159 | DevCloseDC (hdcMem);
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| 160 |
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| 161 | #ifdef _DOLOGMEM_
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| 162 | LogMem("CaptureWindow", FALSE);
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| 163 | #endif
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| 164 |
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| 165 | return hbm;
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| 166 | }
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| 167 |
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| 168 | // ** DoTracking ********************************************************** /*FOLD00*/
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| 169 |
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| 170 | BOOL DoTracking (RECTL *prclTrack)
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| 171 | {
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| 172 | LONG cxScreen, cyScreen, cxPointer, cyPointer;
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| 173 | TRACKINFO ti;
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| 174 |
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| 175 | cxScreen = WinQuerySysValue (HWND_DESKTOP, SV_CXSCREEN);
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| 176 | cyScreen = WinQuerySysValue (HWND_DESKTOP, SV_CYSCREEN);
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| 177 | cxPointer = WinQuerySysValue (HWND_DESKTOP, SV_CXPOINTER);
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| 178 | cyPointer = WinQuerySysValue (HWND_DESKTOP, SV_CYPOINTER);
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| 179 |
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| 180 | ti.cxBorder = 1;
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| 181 | ti.cyBorder = 1;
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| 182 |
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| 183 | ti.cxGrid = 0;
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| 184 | ti.cyGrid = 0;
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| 185 |
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| 186 | ti.cxKeyboard = 4;
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| 187 | ti.cyKeyboard = 4;
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| 188 |
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| 189 | ti.rclBoundary.xLeft = 0;
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| 190 | ti.rclBoundary.yBottom = 0;
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| 191 | ti.rclBoundary.xRight = cxScreen;
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| 192 | ti.rclBoundary.yTop = cyScreen;
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| 193 |
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| 194 | ti.ptlMinTrackSize.x = 1;
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| 195 | ti.ptlMinTrackSize.y = 1;
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| 196 | ti.ptlMaxTrackSize.x = cxScreen;
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| 197 | ti.ptlMaxTrackSize.y = cyScreen;
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| 198 |
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| 199 | ti.rclTrack.xLeft = (cxScreen-cxPointer)/2;
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| 200 | ti.rclTrack.yBottom = (cyScreen-cyPointer)/2;
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| 201 | ti.rclTrack.xRight = (cxScreen+cxPointer)/2;
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| 202 | ti.rclTrack.yTop = (cyScreen+cyPointer)/2;
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| 203 |
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| 204 | ti.fs = TF_MOVE | TF_STANDARD | TF_SETPOINTERPOS;
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| 205 |
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| 206 | if (! WinTrackRect (HWND_DESKTOP, NULL, &ti))
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| 207 | return FALSE;
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| 208 |
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| 209 | WinSetPointer (HWND_DESKTOP,
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| 210 | WinQuerySysPointer (HWND_DESKTOP, SPTR_SIZENESW, FALSE));
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| 211 |
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| 212 | ti.fs = TF_RIGHT | TF_TOP | TF_STANDARD | TF_SETPOINTERPOS;
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| 213 |
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| 214 | if (! WinTrackRect (HWND_DESKTOP, NULL, &ti))
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| 215 | return FALSE;
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| 216 |
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| 217 | *prclTrack = ti.rclTrack;
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| 218 |
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| 219 | return TRUE;
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| 220 | }
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| 221 |
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| 222 | // ** StartSelection ****************************************************** /*FOLD00*/
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| 223 |
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| 224 | VOID StartSelection (HWND hwnd)
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| 225 | {
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| 226 | WinSetPointer (HWND_DESKTOP, WinLoadPointer (HWND_DESKTOP, GETMODULE, 2));
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| 227 | WinSetCapture (HWND_DESKTOP, hwnd);
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| 228 | }
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| 229 |
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| 230 | // ************************************************************************
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