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push 6fe5edf8439c19d3885814583531c2f2b1495177
[wine/hacks.git] / dlls / user32 / cursoricon.c
blob153a2a4f0891c0500e57ecec15c61a486f01f184
1 /*
2 * Cursor and icon support
3 *
4 * Copyright 1995 Alexandre Julliard
5 * 1996 Martin Von Loewis
6 * 1997 Alex Korobka
7 * 1998 Turchanov Sergey
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 */
23
24 /*
25 * Theory:
26 *
27 * Cursors and icons are stored in a global heap block, with the
28 * following layout:
29 *
30 * CURSORICONINFO info;
31 * BYTE[] ANDbits;
32 * BYTE[] XORbits;
33 *
34 * The bits structures are in the format of a device-dependent bitmap.
35 *
36 * This layout is very sub-optimal, as the bitmap bits are stored in
37 * the X client instead of in the server like other bitmaps; however,
38 * some programs (notably Paint Brush) expect to be able to manipulate
39 * the bits directly :-(
40 */
41
42 #include "config.h"
43 #include "wine/port.h"
44
45 #include <stdarg.h>
46 #include <string.h>
47 #include <stdlib.h>
48
49 #include "windef.h"
50 #include "winbase.h"
51 #include "wingdi.h"
52 #include "winerror.h"
53 #include "wine/winbase16.h"
54 #include "wine/winuser16.h"
55 #include "wine/exception.h"
56 #include "wine/debug.h"
57 #include "user_private.h"
58
59 WINE_DEFAULT_DEBUG_CHANNEL(cursor);
60 WINE_DECLARE_DEBUG_CHANNEL(icon);
61 WINE_DECLARE_DEBUG_CHANNEL(resource);
62
63 #include "pshpack1.h"
64
65 typedef struct {
66 BYTE bWidth;
67 BYTE bHeight;
68 BYTE bColorCount;
69 BYTE bReserved;
70 WORD xHotspot;
71 WORD yHotspot;
72 DWORD dwDIBSize;
73 DWORD dwDIBOffset;
74 } CURSORICONFILEDIRENTRY;
75
76 typedef struct
77 {
78 WORD idReserved;
79 WORD idType;
80 WORD idCount;
81 CURSORICONFILEDIRENTRY idEntries[1];
82 } CURSORICONFILEDIR;
83
84 #include "poppack.h"
85
86 #define CID_RESOURCE 0x0001
87 #define CID_WIN32 0x0004
88 #define CID_NONSHARED 0x0008
89
90 static RECT CURSOR_ClipRect; /* Cursor clipping rect */
91
92 static HDC screen_dc;
93
94 static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0};
95
96 /**********************************************************************
97 * ICONCACHE for cursors/icons loaded with LR_SHARED.
98 *
99 * FIXME: This should not be allocated on the system heap, but on a
100 * subsystem-global heap (i.e. one for all Win16 processes,
101 * and one for each Win32 process).
102 */
103 typedef struct tagICONCACHE
104 {
105 struct tagICONCACHE *next;
106
107 HMODULE hModule;
108 HRSRC hRsrc;
109 HRSRC hGroupRsrc;
110 HICON hIcon;
111
112 INT count;
113
114 } ICONCACHE;
115
116 static ICONCACHE *IconAnchor = NULL;
117
118 static CRITICAL_SECTION IconCrst;
119 static CRITICAL_SECTION_DEBUG critsect_debug =
120 {
121 0, 0, &IconCrst,
122 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
123 0, 0, { (DWORD_PTR)(__FILE__ ": IconCrst") }
124 };
125 static CRITICAL_SECTION IconCrst = { &critsect_debug, -1, 0, 0, 0, 0 };
126
127 static const WORD ICON_HOTSPOT = 0x4242;
128
129
130 /***********************************************************************
131 * map_fileW
132 *
133 * Helper function to map a file to memory:
134 * name - file name
135 * [RETURN] ptr - pointer to mapped file
136 * [RETURN] filesize - pointer size of file to be stored if not NULL
137 */
138 static void *map_fileW( LPCWSTR name, LPDWORD filesize )
139 {
140 HANDLE hFile, hMapping;
141 LPVOID ptr = NULL;
142
143 hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL,
144 OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 );
145 if (hFile != INVALID_HANDLE_VALUE)
146 {
147 hMapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
148 if (hMapping)
149 {
150 ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
151 CloseHandle( hMapping );
152 if (filesize)
153 *filesize = GetFileSize( hFile, NULL );
154 }
155 CloseHandle( hFile );
156 }
157 return ptr;
158 }
159
160
161 /***********************************************************************
162 * get_bitmap_width_bytes
163 *
164 * Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
165 * data.
166 */
167 static int get_bitmap_width_bytes( int width, int bpp )
168 {
169 switch(bpp)
170 {
171 case 1:
172 return 2 * ((width+15) / 16);
173 case 4:
174 return 2 * ((width+3) / 4);
175 case 24:
176 width *= 3;
177 /* fall through */
178 case 8:
179 return width + (width & 1);
180 case 16:
181 case 15:
182 return width * 2;
183 case 32:
184 return width * 4;
185 default:
186 WARN("Unknown depth %d, please report.\n", bpp );
187 }
188 return -1;
189 }
190
191
192 /***********************************************************************
193 * get_dib_width_bytes
194 *
195 * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
196 */
197 static int get_dib_width_bytes( int width, int depth )
198 {
199 int words;
200
201 switch(depth)
202 {
203 case 1: words = (width + 31) / 32; break;
204 case 4: words = (width + 7) / 8; break;
205 case 8: words = (width + 3) / 4; break;
206 case 15:
207 case 16: words = (width + 1) / 2; break;
208 case 24: words = (width * 3 + 3)/4; break;
209 default:
210 WARN("(%d): Unsupported depth\n", depth );
211 /* fall through */
212 case 32:
213 words = width;
214 }
215 return 4 * words;
216 }
217
218
219 /***********************************************************************
220 * bitmap_info_size
221 *
222 * Return the size of the bitmap info structure including color table.
223 */
224 static int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
225 {
226 int colors;
227
228 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
229 {
230 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
231 colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
232 return sizeof(BITMAPCOREHEADER) + colors *
233 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
234 }
235 else /* assume BITMAPINFOHEADER */
236 {
237 colors = info->bmiHeader.biClrUsed;
238 if (colors > 256) /* buffer overflow otherwise */
239 colors = 256;
240 if (!colors && (info->bmiHeader.biBitCount <= 8))
241 colors = 1 << info->bmiHeader.biBitCount;
242 return sizeof(BITMAPINFOHEADER) + colors *
243 ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
244 }
245 }
246
247
248 /***********************************************************************
249 * is_dib_monochrome
250 *
251 * Returns whether a DIB can be converted to a monochrome DDB.
252 *
253 * A DIB can be converted if its color table contains only black and
254 * white. Black must be the first color in the color table.
255 *
256 * Note : If the first color in the color table is white followed by
257 * black, we can't convert it to a monochrome DDB with
258 * SetDIBits, because black and white would be inverted.
259 */
260 static BOOL is_dib_monochrome( const BITMAPINFO* info )
261 {
262 if (info->bmiHeader.biBitCount != 1) return FALSE;
263
264 if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
265 {
266 const RGBTRIPLE *rgb = ((const BITMAPCOREINFO*)info)->bmciColors;
267
268 /* Check if the first color is black */
269 if ((rgb->rgbtRed == 0) && (rgb->rgbtGreen == 0) && (rgb->rgbtBlue == 0))
270 {
271 rgb++;
272
273 /* Check if the second color is white */
274 return ((rgb->rgbtRed == 0xff) && (rgb->rgbtGreen == 0xff)
275 && (rgb->rgbtBlue == 0xff));
276 }
277 else return FALSE;
278 }
279 else /* assume BITMAPINFOHEADER */
280 {
281 const RGBQUAD *rgb = info->bmiColors;
282
283 /* Check if the first color is black */
284 if ((rgb->rgbRed == 0) && (rgb->rgbGreen == 0) &&
285 (rgb->rgbBlue == 0) && (rgb->rgbReserved == 0))
286 {
287 rgb++;
288
289 /* Check if the second color is white */
290 return ((rgb->rgbRed == 0xff) && (rgb->rgbGreen == 0xff)
291 && (rgb->rgbBlue == 0xff) && (rgb->rgbReserved == 0));
292 }
293 else return FALSE;
294 }
295 }
296
297 /***********************************************************************
298 * DIB_GetBitmapInfo
299 *
300 * Get the info from a bitmap header.
301 * Return 1 for INFOHEADER, 0 for COREHEADER,
302 * 4 for V4HEADER, 5 for V5HEADER, -1 for error.
303 */
304 static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
305 LONG *height, WORD *bpp, DWORD *compr )
306 {
307 if (header->biSize == sizeof(BITMAPINFOHEADER))
308 {
309 *width = header->biWidth;
310 *height = header->biHeight;
311 *bpp = header->biBitCount;
312 *compr = header->biCompression;
313 return 1;
314 }
315 if (header->biSize == sizeof(BITMAPCOREHEADER))
316 {
317 const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
318 *width = core->bcWidth;
319 *height = core->bcHeight;
320 *bpp = core->bcBitCount;
321 *compr = 0;
322 return 0;
323 }
324 if (header->biSize == sizeof(BITMAPV4HEADER))
325 {
326 const BITMAPV4HEADER *v4hdr = (const BITMAPV4HEADER *)header;
327 *width = v4hdr->bV4Width;
328 *height = v4hdr->bV4Height;
329 *bpp = v4hdr->bV4BitCount;
330 *compr = v4hdr->bV4V4Compression;
331 return 4;
332 }
333 if (header->biSize == sizeof(BITMAPV5HEADER))
334 {
335 const BITMAPV5HEADER *v5hdr = (const BITMAPV5HEADER *)header;
336 *width = v5hdr->bV5Width;
337 *height = v5hdr->bV5Height;
338 *bpp = v5hdr->bV5BitCount;
339 *compr = v5hdr->bV5Compression;
340 return 5;
341 }
342 ERR("(%d): unknown/wrong size for header\n", header->biSize );
343 return -1;
344 }
345
346 /**********************************************************************
347 * CURSORICON_FindSharedIcon
348 */
349 static HICON CURSORICON_FindSharedIcon( HMODULE hModule, HRSRC hRsrc )
350 {
351 HICON hIcon = 0;
352 ICONCACHE *ptr;
353
354 EnterCriticalSection( &IconCrst );
355
356 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
357 if ( ptr->hModule == hModule && ptr->hRsrc == hRsrc )
358 {
359 ptr->count++;
360 hIcon = ptr->hIcon;
361 break;
362 }
363
364 LeaveCriticalSection( &IconCrst );
365
366 return hIcon;
367 }
368
369 /*************************************************************************
370 * CURSORICON_FindCache
371 *
372 * Given a handle, find the corresponding cache element
373 *
374 * PARAMS
375 * Handle [I] handle to an Image
376 *
377 * RETURNS
378 * Success: The cache entry
379 * Failure: NULL
380 *
381 */
382 static ICONCACHE* CURSORICON_FindCache(HICON hIcon)
383 {
384 ICONCACHE *ptr;
385 ICONCACHE *pRet=NULL;
386 BOOL IsFound = FALSE;
387 int count;
388
389 EnterCriticalSection( &IconCrst );
390
391 for (count = 0, ptr = IconAnchor; ptr != NULL && !IsFound; ptr = ptr->next, count++ )
392 {
393 if ( hIcon == ptr->hIcon )
394 {
395 IsFound = TRUE;
396 pRet = ptr;
397 }
398 }
399
400 LeaveCriticalSection( &IconCrst );
401
402 return pRet;
403 }
404
405 /**********************************************************************
406 * CURSORICON_AddSharedIcon
407 */
408 static void CURSORICON_AddSharedIcon( HMODULE hModule, HRSRC hRsrc, HRSRC hGroupRsrc, HICON hIcon )
409 {
410 ICONCACHE *ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(ICONCACHE) );
411 if ( !ptr ) return;
412
413 ptr->hModule = hModule;
414 ptr->hRsrc = hRsrc;
415 ptr->hIcon = hIcon;
416 ptr->hGroupRsrc = hGroupRsrc;
417 ptr->count = 1;
418
419 EnterCriticalSection( &IconCrst );
420 ptr->next = IconAnchor;
421 IconAnchor = ptr;
422 LeaveCriticalSection( &IconCrst );
423 }
424
425 /**********************************************************************
426 * CURSORICON_DelSharedIcon
427 */
428 static INT CURSORICON_DelSharedIcon( HICON hIcon )
429 {
430 INT count = -1;
431 ICONCACHE *ptr;
432
433 EnterCriticalSection( &IconCrst );
434
435 for ( ptr = IconAnchor; ptr; ptr = ptr->next )
436 if ( ptr->hIcon == hIcon )
437 {
438 if ( ptr->count > 0 ) ptr->count--;
439 count = ptr->count;
440 break;
441 }
442
443 LeaveCriticalSection( &IconCrst );
444
445 return count;
446 }
447
448 /**********************************************************************
449 * CURSORICON_FreeModuleIcons
450 */
451 void CURSORICON_FreeModuleIcons( HMODULE16 hMod16 )
452 {
453 ICONCACHE **ptr = &IconAnchor;
454 HMODULE hModule = HMODULE_32(GetExePtr( hMod16 ));
455
456 EnterCriticalSection( &IconCrst );
457
458 while ( *ptr )
459 {
460 if ( (*ptr)->hModule == hModule )
461 {
462 ICONCACHE *freePtr = *ptr;
463 *ptr = freePtr->next;
464
465 GlobalFree16(HICON_16(freePtr->hIcon));
466 HeapFree( GetProcessHeap(), 0, freePtr );
467 continue;
468 }
469 ptr = &(*ptr)->next;
470 }
471
472 LeaveCriticalSection( &IconCrst );
473 }
474
475 /*
476 * The following macro functions account for the irregularities of
477 * accessing cursor and icon resources in files and resource entries.
478 */
479 typedef BOOL (*fnGetCIEntry)( LPVOID dir, int n,
480 int *width, int *height, int *bits );
481
482 /**********************************************************************
483 * CURSORICON_FindBestIcon
484 *
485 * Find the icon closest to the requested size and number of colors.
486 */
487 static int CURSORICON_FindBestIcon( LPVOID dir, fnGetCIEntry get_entry,
488 int width, int height, int colors )
489 {
490 int i, cx, cy, bits, bestEntry = -1;
491 UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
492 UINT iTempXDiff, iTempYDiff, iTempColorDiff;
493
494 /* Find Best Fit */
495 iTotalDiff = 0xFFFFFFFF;
496 iColorDiff = 0xFFFFFFFF;
497 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
498 {
499 iTempXDiff = abs(width - cx);
500 iTempYDiff = abs(height - cy);
501
502 if(iTotalDiff > (iTempXDiff + iTempYDiff))
503 {
504 iXDiff = iTempXDiff;
505 iYDiff = iTempYDiff;
506 iTotalDiff = iXDiff + iYDiff;
507 }
508 }
509
510 /* Find Best Colors for Best Fit */
511 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
512 {
513 if(abs(width - cx) == iXDiff && abs(height - cy) == iYDiff)
514 {
515 iTempColorDiff = abs(colors - (1<<bits));
516 if(iColorDiff > iTempColorDiff)
517 {
518 bestEntry = i;
519 iColorDiff = iTempColorDiff;
520 }
521 }
522 }
523
524 return bestEntry;
525 }
526
527 static BOOL CURSORICON_GetResIconEntry( LPVOID dir, int n,
528 int *width, int *height, int *bits )
529 {
530 CURSORICONDIR *resdir = dir;
531 ICONRESDIR *icon;
532
533 if ( resdir->idCount <= n )
534 return FALSE;
535 icon = &resdir->idEntries[n].ResInfo.icon;
536 *width = icon->bWidth;
537 *height = icon->bHeight;
538 *bits = resdir->idEntries[n].wBitCount;
539 return TRUE;
540 }
541
542 /**********************************************************************
543 * CURSORICON_FindBestCursor
544 *
545 * Find the cursor closest to the requested size.
546 * FIXME: parameter 'color' ignored and entries with more than 1 bpp
547 * ignored too
548 */
549 static int CURSORICON_FindBestCursor( LPVOID dir, fnGetCIEntry get_entry,
550 int width, int height, int color )
551 {
552 int i, maxwidth, maxheight, cx, cy, bits, bestEntry = -1;
553
554 /* Double height to account for AND and XOR masks */
555
556 height *= 2;
557
558 /* First find the largest one smaller than or equal to the requested size*/
559
560 maxwidth = maxheight = 0;
561 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
562 {
563 if ((cx <= width) && (cy <= height) &&
564 (cx > maxwidth) && (cy > maxheight) &&
565 (bits == 1))
566 {
567 bestEntry = i;
568 maxwidth = cx;
569 maxheight = cy;
570 }
571 }
572 if (bestEntry != -1) return bestEntry;
573
574 /* Now find the smallest one larger than the requested size */
575
576 maxwidth = maxheight = 255;
577 for ( i = 0; get_entry( dir, i, &cx, &cy, &bits ); i++ )
578 {
579 if (((cx < maxwidth) && (cy < maxheight) && (bits == 1)) ||
580 (bestEntry==-1))
581 {
582 bestEntry = i;
583 maxwidth = cx;
584 maxheight = cy;
585 }
586 }
587
588 return bestEntry;
589 }
590
591 static BOOL CURSORICON_GetResCursorEntry( LPVOID dir, int n,
592 int *width, int *height, int *bits )
593 {
594 CURSORICONDIR *resdir = dir;
595 CURSORDIR *cursor;
596
597 if ( resdir->idCount <= n )
598 return FALSE;
599 cursor = &resdir->idEntries[n].ResInfo.cursor;
600 *width = cursor->wWidth;
601 *height = cursor->wHeight;
602 *bits = resdir->idEntries[n].wBitCount;
603 return TRUE;
604 }
605
606 static CURSORICONDIRENTRY *CURSORICON_FindBestIconRes( CURSORICONDIR * dir,
607 int width, int height, int colors )
608 {
609 int n;
610
611 n = CURSORICON_FindBestIcon( dir, CURSORICON_GetResIconEntry,
612 width, height, colors );
613 if ( n < 0 )
614 return NULL;
615 return &dir->idEntries[n];
616 }
617
618 static CURSORICONDIRENTRY *CURSORICON_FindBestCursorRes( CURSORICONDIR *dir,
619 int width, int height, int color )
620 {
621 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetResCursorEntry,
622 width, height, color );
623 if ( n < 0 )
624 return NULL;
625 return &dir->idEntries[n];
626 }
627
628 static BOOL CURSORICON_GetFileEntry( LPVOID dir, int n,
629 int *width, int *height, int *bits )
630 {
631 CURSORICONFILEDIR *filedir = dir;
632 CURSORICONFILEDIRENTRY *entry;
633
634 if ( filedir->idCount <= n )
635 return FALSE;
636 entry = &filedir->idEntries[n];
637 *width = entry->bWidth;
638 *height = entry->bHeight;
639 *bits = entry->bColorCount;
640 return TRUE;
641 }
642
643 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestCursorFile( CURSORICONFILEDIR *dir,
644 int width, int height, int color )
645 {
646 int n = CURSORICON_FindBestCursor( dir, CURSORICON_GetFileEntry,
647 width, height, color );
648 if ( n < 0 )
649 return NULL;
650 return &dir->idEntries[n];
651 }
652
653 static CURSORICONFILEDIRENTRY *CURSORICON_FindBestIconFile( CURSORICONFILEDIR *dir,
654 int width, int height, int color )
655 {
656 int n = CURSORICON_FindBestIcon( dir, CURSORICON_GetFileEntry,
657 width, height, color );
658 if ( n < 0 )
659 return NULL;
660 return &dir->idEntries[n];
661 }
662
663 /**********************************************************************
664 * CreateIconFromResourceEx (USER32.@)
665 *
666 * FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
667 * with cbSize parameter as well.
668 */
669 HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
670 BOOL bIcon, DWORD dwVersion,
671 INT width, INT height,
672 UINT cFlag )
673 {
674 HGLOBAL16 hObj;
675 static HDC hdcMem;
676 int sizeAnd, sizeXor;
677 HBITMAP hAndBits = 0, hXorBits = 0; /* error condition for later */
678 BITMAP bmpXor, bmpAnd;
679 POINT16 hotspot;
680 BITMAPINFO *bmi;
681 BOOL DoStretch;
682 INT size;
683
684 hotspot.x = ICON_HOTSPOT;
685 hotspot.y = ICON_HOTSPOT;
686
687 TRACE_(cursor)("%p (%u bytes), ver %08x, %ix%i %s %s\n",
688 bits, cbSize, dwVersion, width, height,
689 bIcon ? "icon" : "cursor", (cFlag & LR_MONOCHROME) ? "mono" : "" );
690 if (dwVersion == 0x00020000)
691 {
692 FIXME_(cursor)("\t2.xx resources are not supported\n");
693 return 0;
694 }
695
696 if (bIcon)
697 bmi = (BITMAPINFO *)bits;
698 else /* get the hotspot */
699 {
700 POINT16 *pt = (POINT16 *)bits;
701 hotspot = *pt;
702 bmi = (BITMAPINFO *)(pt + 1);
703 }
704
705 /* Check bitmap header */
706
707 if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
708 (bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
709 bmi->bmiHeader.biCompression != BI_RGB) )
710 {
711 WARN_(cursor)("\tinvalid resource bitmap header.\n");
712 return 0;
713 }
714
715 size = bitmap_info_size( bmi, DIB_RGB_COLORS );
716
717 if (!width) width = bmi->bmiHeader.biWidth;
718 if (!height) height = bmi->bmiHeader.biHeight/2;
719 DoStretch = (bmi->bmiHeader.biHeight/2 != height) ||
720 (bmi->bmiHeader.biWidth != width);
721
722 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
723 if (screen_dc)
724 {
725 BITMAPINFO* pInfo;
726
727 /* Make sure we have room for the monochrome bitmap later on.
728 * Note that BITMAPINFOINFO and BITMAPCOREHEADER are the same
729 * up to and including the biBitCount. In-memory icon resource
730 * format is as follows:
731 *
732 * BITMAPINFOHEADER icHeader // DIB header
733 * RGBQUAD icColors[] // Color table
734 * BYTE icXOR[] // DIB bits for XOR mask
735 * BYTE icAND[] // DIB bits for AND mask
736 */
737
738 if ((pInfo = HeapAlloc( GetProcessHeap(), 0,
739 max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD)))))
740 {
741 memcpy( pInfo, bmi, size );
742 pInfo->bmiHeader.biHeight /= 2;
743
744 /* Create the XOR bitmap */
745
746 if (DoStretch) {
747 if(bIcon)
748 {
749 hXorBits = CreateCompatibleBitmap(screen_dc, width, height);
750 }
751 else
752 {
753 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
754 }
755 if(hXorBits)
756 {
757 HBITMAP hOld;
758 BOOL res = FALSE;
759
760 if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
761 if (hdcMem) {
762 hOld = SelectObject(hdcMem, hXorBits);
763 res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
764 bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight/2,
765 (char*)bmi + size, pInfo, DIB_RGB_COLORS, SRCCOPY);
766 SelectObject(hdcMem, hOld);
767 }
768 if (!res) { DeleteObject(hXorBits); hXorBits = 0; }
769 }
770 } else {
771 if (is_dib_monochrome(bmi)) {
772 hXorBits = CreateBitmap(width, height, 1, 1, NULL);
773 SetDIBits(screen_dc, hXorBits, 0, height,
774 (char*)bmi + size, pInfo, DIB_RGB_COLORS);
775 }
776 else
777 hXorBits = CreateDIBitmap(screen_dc, &pInfo->bmiHeader,
778 CBM_INIT, (char*)bmi + size, pInfo, DIB_RGB_COLORS);
779 }
780
781 if( hXorBits )
782 {
783 char* xbits = (char *)bmi + size +
784 get_dib_width_bytes( bmi->bmiHeader.biWidth,
785 bmi->bmiHeader.biBitCount ) * abs( bmi->bmiHeader.biHeight ) / 2;
786
787 pInfo->bmiHeader.biBitCount = 1;
788 if (pInfo->bmiHeader.biSize != sizeof(BITMAPCOREHEADER))
789 {
790 RGBQUAD *rgb = pInfo->bmiColors;
791
792 pInfo->bmiHeader.biClrUsed = pInfo->bmiHeader.biClrImportant = 2;
793 rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
794 rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
795 rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
796 }
797 else
798 {
799 RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)pInfo) + 1);
800
801 rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
802 rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
803 }
804
805 /* Create the AND bitmap */
806
807 if (DoStretch) {
808 if ((hAndBits = CreateBitmap(width, height, 1, 1, NULL))) {
809 HBITMAP hOld;
810 BOOL res = FALSE;
811
812 if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
813 if (hdcMem) {
814 hOld = SelectObject(hdcMem, hAndBits);
815 res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
816 pInfo->bmiHeader.biWidth, pInfo->bmiHeader.biHeight,
817 xbits, pInfo, DIB_RGB_COLORS, SRCCOPY);
818 SelectObject(hdcMem, hOld);
819 }
820 if (!res) { DeleteObject(hAndBits); hAndBits = 0; }
821 }
822 } else {
823 hAndBits = CreateBitmap(width, height, 1, 1, NULL);
824
825 if (hAndBits) SetDIBits(screen_dc, hAndBits, 0, height,
826 xbits, pInfo, DIB_RGB_COLORS);
827
828 }
829 if( !hAndBits ) DeleteObject( hXorBits );
830 }
831 HeapFree( GetProcessHeap(), 0, pInfo );
832 }
833 }
834
835 if( !hXorBits || !hAndBits )
836 {
837 WARN_(cursor)("\tunable to create an icon bitmap.\n");
838 return 0;
839 }
840
841 /* Now create the CURSORICONINFO structure */
842 GetObjectA( hXorBits, sizeof(bmpXor), &bmpXor );
843 GetObjectA( hAndBits, sizeof(bmpAnd), &bmpAnd );
844 sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
845 sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
846
847 hObj = GlobalAlloc16( GMEM_MOVEABLE,
848 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
849 if (hObj)
850 {
851 CURSORICONINFO *info;
852
853 info = (CURSORICONINFO *)GlobalLock16( hObj );
854 info->ptHotSpot.x = hotspot.x;
855 info->ptHotSpot.y = hotspot.y;
856 info->nWidth = bmpXor.bmWidth;
857 info->nHeight = bmpXor.bmHeight;
858 info->nWidthBytes = bmpXor.bmWidthBytes;
859 info->bPlanes = bmpXor.bmPlanes;
860 info->bBitsPerPixel = bmpXor.bmBitsPixel;
861
862 /* Transfer the bitmap bits to the CURSORICONINFO structure */
863
864 GetBitmapBits( hAndBits, sizeAnd, (char *)(info + 1) );
865 GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd );
866 GlobalUnlock16( hObj );
867 }
868
869 DeleteObject( hAndBits );
870 DeleteObject( hXorBits );
871 return HICON_32(hObj);
872 }
873
874
875 /**********************************************************************
876 * CreateIconFromResource (USER32.@)
877 */
878 HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
879 BOOL bIcon, DWORD dwVersion)
880 {
881 return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
882 }
883
884
885 static HICON CURSORICON_LoadFromFile( LPCWSTR filename,
886 INT width, INT height, INT colors,
887 BOOL fCursor, UINT loadflags)
888 {
889 CURSORICONFILEDIRENTRY *entry;
890 CURSORICONFILEDIR *dir;
891 DWORD filesize = 0;
892 HICON hIcon = 0;
893 LPBYTE bits;
894
895 TRACE("loading %s\n", debugstr_w( filename ));
896
897 bits = map_fileW( filename, &filesize );
898 if (!bits)
899 return hIcon;
900
901 /* Check for .ani. */
902 if (memcmp( bits, "RIFF", 4 ) == 0)
903 {
904 FIXME("No support for .ani cursors.\n");
905 goto end;
906 }
907
908 dir = (CURSORICONFILEDIR*) bits;
909 if ( filesize < sizeof(*dir) )
910 goto end;
911
912 if ( filesize < (sizeof(*dir) + sizeof(dir->idEntries[0])*(dir->idCount-1)) )
913 goto end;
914
915 if ( fCursor )
916 entry = CURSORICON_FindBestCursorFile( dir, width, height, colors );
917 else
918 entry = CURSORICON_FindBestIconFile( dir, width, height, colors );
919
920 if ( !entry )
921 goto end;
922
923 /* check that we don't run off the end of the file */
924 if ( entry->dwDIBOffset > filesize )
925 goto end;
926 if ( entry->dwDIBOffset + entry->dwDIBSize > filesize )
927 goto end;
928
929 hIcon = CreateIconFromResourceEx( &bits[entry->dwDIBOffset], entry->dwDIBSize,
930 !fCursor, 0x00030000, width, height, loadflags );
931 end:
932 TRACE("loaded %s -> %p\n", debugstr_w( filename ), hIcon );
933 UnmapViewOfFile( bits );
934 return hIcon;
935 }
936
937 /**********************************************************************
938 * CURSORICON_Load
939 *
940 * Load a cursor or icon from resource or file.
941 */
942 static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
943 INT width, INT height, INT colors,
944 BOOL fCursor, UINT loadflags)
945 {
946 HANDLE handle = 0;
947 HICON hIcon = 0;
948 HRSRC hRsrc, hGroupRsrc;
949 CURSORICONDIR *dir;
950 CURSORICONDIRENTRY *dirEntry;
951 LPBYTE bits;
952 WORD wResId;
953 DWORD dwBytesInRes;
954
955 TRACE("%p, %s, %dx%d, colors %d, fCursor %d, flags 0x%04x\n",
956 hInstance, debugstr_w(name), width, height, colors, fCursor, loadflags);
957
958 if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
959 return CURSORICON_LoadFromFile( name, width, height, colors, fCursor, loadflags );
960
961 if (!hInstance) hInstance = user32_module; /* Load OEM cursor/icon */
962
963 /* Normalize hInstance (must be uniquely represented for icon cache) */
964
965 if (!HIWORD( hInstance ))
966 hInstance = HINSTANCE_32(GetExePtr( HINSTANCE_16(hInstance) ));
967
968 /* Get directory resource ID */
969
970 if (!(hRsrc = FindResourceW( hInstance, name,
971 (LPWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
972 return 0;
973 hGroupRsrc = hRsrc;
974
975 /* Find the best entry in the directory */
976
977 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
978 if (!(dir = (CURSORICONDIR*)LockResource( handle ))) return 0;
979 if (fCursor)
980 dirEntry = CURSORICON_FindBestCursorRes( dir, width, height, 1);
981 else
982 dirEntry = CURSORICON_FindBestIconRes( dir, width, height, colors );
983 if (!dirEntry) return 0;
984 wResId = dirEntry->wResId;
985 dwBytesInRes = dirEntry->dwBytesInRes;
986 FreeResource( handle );
987
988 /* Load the resource */
989
990 if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
991 (LPWSTR)(fCursor ? RT_CURSOR : RT_ICON) ))) return 0;
992
993 /* If shared icon, check whether it was already loaded */
994 if ( (loadflags & LR_SHARED)
995 && (hIcon = CURSORICON_FindSharedIcon( hInstance, hRsrc ) ) != 0 )
996 return hIcon;
997
998 if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
999 bits = (LPBYTE)LockResource( handle );
1000 hIcon = CreateIconFromResourceEx( bits, dwBytesInRes,
1001 !fCursor, 0x00030000, width, height, loadflags);
1002 FreeResource( handle );
1003
1004 /* If shared icon, add to icon cache */
1005
1006 if ( hIcon && (loadflags & LR_SHARED) )
1007 CURSORICON_AddSharedIcon( hInstance, hRsrc, hGroupRsrc, hIcon );
1008
1009 return hIcon;
1010 }
1011
1012 /***********************************************************************
1013 * CURSORICON_Copy
1014 *
1015 * Make a copy of a cursor or icon.
1016 */
1017 static HICON CURSORICON_Copy( HINSTANCE16 hInst16, HICON hIcon )
1018 {
1019 char *ptrOld, *ptrNew;
1020 int size;
1021 HICON16 hOld = HICON_16(hIcon);
1022 HICON16 hNew;
1023
1024 if (!(ptrOld = (char *)GlobalLock16( hOld ))) return 0;
1025 if (hInst16 && !(hInst16 = GetExePtr( hInst16 ))) return 0;
1026 size = GlobalSize16( hOld );
1027 hNew = GlobalAlloc16( GMEM_MOVEABLE, size );
1028 FarSetOwner16( hNew, hInst16 );
1029 ptrNew = (char *)GlobalLock16( hNew );
1030 memcpy( ptrNew, ptrOld, size );
1031 GlobalUnlock16( hOld );
1032 GlobalUnlock16( hNew );
1033 return HICON_32(hNew);
1034 }
1035
1036 /*************************************************************************
1037 * CURSORICON_ExtCopy
1038 *
1039 * Copies an Image from the Cache if LR_COPYFROMRESOURCE is specified
1040 *
1041 * PARAMS
1042 * Handle [I] handle to an Image
1043 * nType [I] Type of Handle (IMAGE_CURSOR | IMAGE_ICON)
1044 * iDesiredCX [I] The Desired width of the Image
1045 * iDesiredCY [I] The desired height of the Image
1046 * nFlags [I] The flags from CopyImage
1047 *
1048 * RETURNS
1049 * Success: The new handle of the Image
1050 *
1051 * NOTES
1052 * LR_COPYDELETEORG and LR_MONOCHROME are currently not implemented.
1053 * LR_MONOCHROME should be implemented by CreateIconFromResourceEx.
1054 * LR_COPYFROMRESOURCE will only work if the Image is in the Cache.
1055 *
1056 *
1057 */
1058
1059 static HICON CURSORICON_ExtCopy(HICON hIcon, UINT nType,
1060 INT iDesiredCX, INT iDesiredCY,
1061 UINT nFlags)
1062 {
1063 HICON hNew=0;
1064
1065 TRACE_(icon)("hIcon %p, nType %u, iDesiredCX %i, iDesiredCY %i, nFlags %u\n",
1066 hIcon, nType, iDesiredCX, iDesiredCY, nFlags);
1067
1068 if(hIcon == 0)
1069 {
1070 return 0;
1071 }
1072
1073 /* Best Fit or Monochrome */
1074 if( (nFlags & LR_COPYFROMRESOURCE
1075 && (iDesiredCX > 0 || iDesiredCY > 0))
1076 || nFlags & LR_MONOCHROME)
1077 {
1078 ICONCACHE* pIconCache = CURSORICON_FindCache(hIcon);
1079
1080 /* Not Found in Cache, then do a straight copy
1081 */
1082 if(pIconCache == NULL)
1083 {
1084 hNew = CURSORICON_Copy(0, hIcon);
1085 if(nFlags & LR_COPYFROMRESOURCE)
1086 {
1087 TRACE_(icon)("LR_COPYFROMRESOURCE: Failed to load from cache\n");
1088 }
1089 }
1090 else
1091 {
1092 int iTargetCY = iDesiredCY, iTargetCX = iDesiredCX;
1093 LPBYTE pBits;
1094 HANDLE hMem;
1095 HRSRC hRsrc;
1096 DWORD dwBytesInRes;
1097 WORD wResId;
1098 CURSORICONDIR *pDir;
1099 CURSORICONDIRENTRY *pDirEntry;
1100 BOOL bIsIcon = (nType == IMAGE_ICON);
1101
1102 /* Completing iDesiredCX CY for Monochrome Bitmaps if needed
1103 */
1104 if(((nFlags & LR_MONOCHROME) && !(nFlags & LR_COPYFROMRESOURCE))
1105 || (iDesiredCX == 0 && iDesiredCY == 0))
1106 {
1107 iDesiredCY = GetSystemMetrics(bIsIcon ?
1108 SM_CYICON : SM_CYCURSOR);
1109 iDesiredCX = GetSystemMetrics(bIsIcon ?
1110 SM_CXICON : SM_CXCURSOR);
1111 }
1112
1113 /* Retrieve the CURSORICONDIRENTRY
1114 */
1115 if (!(hMem = LoadResource( pIconCache->hModule ,
1116 pIconCache->hGroupRsrc)))
1117 {
1118 return 0;
1119 }
1120 if (!(pDir = (CURSORICONDIR*)LockResource( hMem )))
1121 {
1122 return 0;
1123 }
1124
1125 /* Find Best Fit
1126 */
1127 if(bIsIcon)
1128 {
1129 pDirEntry = CURSORICON_FindBestIconRes(
1130 pDir, iDesiredCX, iDesiredCY, 256 );
1131 }
1132 else
1133 {
1134 pDirEntry = CURSORICON_FindBestCursorRes(
1135 pDir, iDesiredCX, iDesiredCY, 1);
1136 }
1137
1138 wResId = pDirEntry->wResId;
1139 dwBytesInRes = pDirEntry->dwBytesInRes;
1140 FreeResource(hMem);
1141
1142 TRACE_(icon)("ResID %u, BytesInRes %u, Width %d, Height %d DX %d, DY %d\n",
1143 wResId, dwBytesInRes, pDirEntry->ResInfo.icon.bWidth,
1144 pDirEntry->ResInfo.icon.bHeight, iDesiredCX, iDesiredCY);
1145
1146 /* Get the Best Fit
1147 */
1148 if (!(hRsrc = FindResourceW(pIconCache->hModule ,
1149 MAKEINTRESOURCEW(wResId), (LPWSTR)(bIsIcon ? RT_ICON : RT_CURSOR))))
1150 {
1151 return 0;
1152 }
1153 if (!(hMem = LoadResource( pIconCache->hModule , hRsrc )))
1154 {
1155 return 0;
1156 }
1157
1158 pBits = (LPBYTE)LockResource( hMem );
1159
1160 if(nFlags & LR_DEFAULTSIZE)
1161 {
1162 iTargetCY = GetSystemMetrics(SM_CYICON);
1163 iTargetCX = GetSystemMetrics(SM_CXICON);
1164 }
1165
1166 /* Create a New Icon with the proper dimension
1167 */
1168 hNew = CreateIconFromResourceEx( pBits, dwBytesInRes,
1169 bIsIcon, 0x00030000, iTargetCX, iTargetCY, nFlags);
1170 FreeResource(hMem);
1171 }
1172 }
1173 else hNew = CURSORICON_Copy(0, hIcon);
1174 return hNew;
1175 }
1176
1177
1178 /***********************************************************************
1179 * CreateCursor (USER32.@)
1180 */
1181 HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
1182 INT xHotSpot, INT yHotSpot,
1183 INT nWidth, INT nHeight,
1184 LPCVOID lpANDbits, LPCVOID lpXORbits )
1185 {
1186 CURSORICONINFO info;
1187
1188 TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
1189 nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
1190
1191 info.ptHotSpot.x = xHotSpot;
1192 info.ptHotSpot.y = yHotSpot;
1193 info.nWidth = nWidth;
1194 info.nHeight = nHeight;
1195 info.nWidthBytes = 0;
1196 info.bPlanes = 1;
1197 info.bBitsPerPixel = 1;
1198
1199 return HICON_32(CreateCursorIconIndirect16(0, &info, lpANDbits, lpXORbits));
1200 }
1201
1202
1203 /***********************************************************************
1204 * CreateIcon (USER.407)
1205 */
1206 HICON16 WINAPI CreateIcon16( HINSTANCE16 hInstance, INT16 nWidth,
1207 INT16 nHeight, BYTE bPlanes, BYTE bBitsPixel,
1208 LPCVOID lpANDbits, LPCVOID lpXORbits )
1209 {
1210 CURSORICONINFO info;
1211
1212 TRACE_(icon)("%dx%dx%d, xor=%p, and=%p\n",
1213 nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
1214
1215 info.ptHotSpot.x = ICON_HOTSPOT;
1216 info.ptHotSpot.y = ICON_HOTSPOT;
1217 info.nWidth = nWidth;
1218 info.nHeight = nHeight;
1219 info.nWidthBytes = 0;
1220 info.bPlanes = bPlanes;
1221 info.bBitsPerPixel = bBitsPixel;
1222
1223 return CreateCursorIconIndirect16( hInstance, &info, lpANDbits, lpXORbits );
1224 }
1225
1226
1227 /***********************************************************************
1228 * CreateIcon (USER32.@)
1229 *
1230 * Creates an icon based on the specified bitmaps. The bitmaps must be
1231 * provided in a device dependent format and will be resized to
1232 * (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
1233 * depth. The provided bitmaps must be top-down bitmaps.
1234 * Although Windows does not support 15bpp(*) this API must support it
1235 * for Winelib applications.
1236 *
1237 * (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
1238 * format!
1239 *
1240 * RETURNS
1241 * Success: handle to an icon
1242 * Failure: NULL
1243 *
1244 * FIXME: Do we need to resize the bitmaps?
1245 */
1246 HICON WINAPI CreateIcon(
1247 HINSTANCE hInstance, /* [in] the application's hInstance */
1248 INT nWidth, /* [in] the width of the provided bitmaps */
1249 INT nHeight, /* [in] the height of the provided bitmaps */
1250 BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
1251 BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
1252 LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
1253 LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
1254 {
1255 ICONINFO iinfo;
1256 HICON hIcon;
1257
1258 TRACE_(icon)("%dx%d, planes %d, bpp %d, xor %p, and %p\n",
1259 nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits, lpANDbits);
1260
1261 iinfo.fIcon = TRUE;
1262 iinfo.xHotspot = ICON_HOTSPOT;
1263 iinfo.yHotspot = ICON_HOTSPOT;
1264 iinfo.hbmMask = CreateBitmap( nWidth, nHeight, 1, 1, lpANDbits );
1265 iinfo.hbmColor = CreateBitmap( nWidth, nHeight, bPlanes, bBitsPixel, lpXORbits );
1266
1267 hIcon = CreateIconIndirect( &iinfo );
1268
1269 DeleteObject( iinfo.hbmMask );
1270 DeleteObject( iinfo.hbmColor );
1271
1272 return hIcon;
1273 }
1274
1275
1276 /***********************************************************************
1277 * CreateCursorIconIndirect (USER.408)
1278 */
1279 HGLOBAL16 WINAPI CreateCursorIconIndirect16( HINSTANCE16 hInstance,
1280 CURSORICONINFO *info,
1281 LPCVOID lpANDbits,
1282 LPCVOID lpXORbits )
1283 {
1284 HGLOBAL16 handle;
1285 char *ptr;
1286 int sizeAnd, sizeXor;
1287
1288 hInstance = GetExePtr( hInstance ); /* Make it a module handle */
1289 if (!lpXORbits || !lpANDbits || info->bPlanes != 1) return 0;
1290 info->nWidthBytes = get_bitmap_width_bytes(info->nWidth,info->bBitsPerPixel);
1291 sizeXor = info->nHeight * info->nWidthBytes;
1292 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1293 if (!(handle = GlobalAlloc16( GMEM_MOVEABLE,
1294 sizeof(CURSORICONINFO) + sizeXor + sizeAnd)))
1295 return 0;
1296 FarSetOwner16( handle, hInstance );
1297 ptr = (char *)GlobalLock16( handle );
1298 memcpy( ptr, info, sizeof(*info) );
1299 memcpy( ptr + sizeof(CURSORICONINFO), lpANDbits, sizeAnd );
1300 memcpy( ptr + sizeof(CURSORICONINFO) + sizeAnd, lpXORbits, sizeXor );
1301 GlobalUnlock16( handle );
1302 return handle;
1303 }
1304
1305
1306 /***********************************************************************
1307 * CopyIcon (USER.368)
1308 */
1309 HICON16 WINAPI CopyIcon16( HINSTANCE16 hInstance, HICON16 hIcon )
1310 {
1311 TRACE_(icon)("%04x %04x\n", hInstance, hIcon );
1312 return HICON_16(CURSORICON_Copy(hInstance, HICON_32(hIcon)));
1313 }
1314
1315
1316 /***********************************************************************
1317 * CopyIcon (USER32.@)
1318 */
1319 HICON WINAPI CopyIcon( HICON hIcon )
1320 {
1321 TRACE_(icon)("%p\n", hIcon );
1322 return CURSORICON_Copy( 0, hIcon );
1323 }
1324
1325
1326 /***********************************************************************
1327 * CopyCursor (USER.369)
1328 */
1329 HCURSOR16 WINAPI CopyCursor16( HINSTANCE16 hInstance, HCURSOR16 hCursor )
1330 {
1331 TRACE_(cursor)("%04x %04x\n", hInstance, hCursor );
1332 return HICON_16(CURSORICON_Copy(hInstance, HCURSOR_32(hCursor)));
1333 }
1334
1335 /**********************************************************************
1336 * DestroyIcon32 (USER.610)
1337 *
1338 * This routine is actually exported from Win95 USER under the name
1339 * DestroyIcon32 ... The behaviour implemented here should mimic
1340 * the Win95 one exactly, especially the return values, which
1341 * depend on the setting of various flags.
1342 */
1343 WORD WINAPI DestroyIcon32( HGLOBAL16 handle, UINT16 flags )
1344 {
1345 WORD retv;
1346
1347 TRACE_(icon)("(%04x, %04x)\n", handle, flags );
1348
1349 /* Check whether destroying active cursor */
1350
1351 if ( get_user_thread_info()->cursor == HICON_32(handle) )
1352 {
1353 WARN_(cursor)("Destroying active cursor!\n" );
1354 return FALSE;
1355 }
1356
1357 /* Try shared cursor/icon first */
1358
1359 if ( !(flags & CID_NONSHARED) )
1360 {
1361 INT count = CURSORICON_DelSharedIcon(HICON_32(handle));
1362
1363 if ( count != -1 )
1364 return (flags & CID_WIN32)? TRUE : (count == 0);
1365
1366 /* FIXME: OEM cursors/icons should be recognized */
1367 }
1368
1369 /* Now assume non-shared cursor/icon */
1370
1371 retv = GlobalFree16( handle );
1372 return (flags & CID_RESOURCE)? retv : TRUE;
1373 }
1374
1375 /***********************************************************************
1376 * DestroyIcon (USER32.@)
1377 */
1378 BOOL WINAPI DestroyIcon( HICON hIcon )
1379 {
1380 return DestroyIcon32(HICON_16(hIcon), CID_WIN32);
1381 }
1382
1383
1384 /***********************************************************************
1385 * DestroyCursor (USER32.@)
1386 */
1387 BOOL WINAPI DestroyCursor( HCURSOR hCursor )
1388 {
1389 return DestroyIcon32(HCURSOR_16(hCursor), CID_WIN32);
1390 }
1391
1392
1393 /***********************************************************************
1394 * DrawIcon (USER32.@)
1395 */
1396 BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
1397 {
1398 CURSORICONINFO *ptr;
1399 HDC hMemDC;
1400 HBITMAP hXorBits, hAndBits;
1401 COLORREF oldFg, oldBg;
1402
1403 TRACE("%p, (%d,%d), %p\n", hdc, x, y, hIcon);
1404
1405 if (!(ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon)))) return FALSE;
1406 if (!(hMemDC = CreateCompatibleDC( hdc ))) return FALSE;
1407 hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1,
1408 (char *)(ptr+1) );
1409 hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes,
1410 ptr->bBitsPerPixel, (char *)(ptr + 1)
1411 + ptr->nHeight * get_bitmap_width_bytes(ptr->nWidth,1) );
1412 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1413 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1414
1415 if (hXorBits && hAndBits)
1416 {
1417 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
1418 BitBlt( hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0, SRCAND );
1419 SelectObject( hMemDC, hXorBits );
1420 BitBlt(hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0,SRCINVERT);
1421 SelectObject( hMemDC, hBitTemp );
1422 }
1423 DeleteDC( hMemDC );
1424 if (hXorBits) DeleteObject( hXorBits );
1425 if (hAndBits) DeleteObject( hAndBits );
1426 GlobalUnlock16(HICON_16(hIcon));
1427 SetTextColor( hdc, oldFg );
1428 SetBkColor( hdc, oldBg );
1429 return TRUE;
1430 }
1431
1432 /***********************************************************************
1433 * DumpIcon (USER.459)
1434 */
1435 DWORD WINAPI DumpIcon16( SEGPTR pInfo, WORD *lpLen,
1436 SEGPTR *lpXorBits, SEGPTR *lpAndBits )
1437 {
1438 CURSORICONINFO *info = MapSL( pInfo );
1439 int sizeAnd, sizeXor;
1440
1441 if (!info) return 0;
1442 sizeXor = info->nHeight * info->nWidthBytes;
1443 sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
1444 if (lpAndBits) *lpAndBits = pInfo + sizeof(CURSORICONINFO);
1445 if (lpXorBits) *lpXorBits = pInfo + sizeof(CURSORICONINFO) + sizeAnd;
1446 if (lpLen) *lpLen = sizeof(CURSORICONINFO) + sizeAnd + sizeXor;
1447 return MAKELONG( sizeXor, sizeXor );
1448 }
1449
1450
1451 /***********************************************************************
1452 * SetCursor (USER32.@)
1453 *
1454 * Set the cursor shape.
1455 *
1456 * RETURNS
1457 * A handle to the previous cursor shape.
1458 */
1459 HCURSOR WINAPI SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
1460 {
1461 struct user_thread_info *thread_info = get_user_thread_info();
1462 HCURSOR hOldCursor;
1463
1464 if (hCursor == thread_info->cursor) return hCursor; /* No change */
1465 TRACE("%p\n", hCursor);
1466 hOldCursor = thread_info->cursor;
1467 thread_info->cursor = hCursor;
1468 /* Change the cursor shape only if it is visible */
1469 if (thread_info->cursor_count >= 0)
1470 {
1471 USER_Driver->pSetCursor( (CURSORICONINFO*)GlobalLock16(HCURSOR_16(hCursor)) );
1472 GlobalUnlock16(HCURSOR_16(hCursor));
1473 }
1474 return hOldCursor;
1475 }
1476
1477 /***********************************************************************
1478 * ShowCursor (USER32.@)
1479 */
1480 INT WINAPI ShowCursor( BOOL bShow )
1481 {
1482 struct user_thread_info *thread_info = get_user_thread_info();
1483
1484 TRACE("%d, count=%d\n", bShow, thread_info->cursor_count );
1485
1486 if (bShow)
1487 {
1488 if (++thread_info->cursor_count == 0) /* Show it */
1489 {
1490 USER_Driver->pSetCursor((CURSORICONINFO*)GlobalLock16(HCURSOR_16(thread_info->cursor)));
1491 GlobalUnlock16(HCURSOR_16(thread_info->cursor));
1492 }
1493 }
1494 else
1495 {
1496 if (--thread_info->cursor_count == -1) /* Hide it */
1497 USER_Driver->pSetCursor( NULL );
1498 }
1499 return thread_info->cursor_count;
1500 }
1501
1502 /***********************************************************************
1503 * GetCursor (USER32.@)
1504 */
1505 HCURSOR WINAPI GetCursor(void)
1506 {
1507 return get_user_thread_info()->cursor;
1508 }
1509
1510
1511 /***********************************************************************
1512 * ClipCursor (USER32.@)
1513 */
1514 BOOL WINAPI ClipCursor( const RECT *rect )
1515 {
1516 RECT virt;
1517
1518 SetRect( &virt, 0, 0, GetSystemMetrics( SM_CXVIRTUALSCREEN ),
1519 GetSystemMetrics( SM_CYVIRTUALSCREEN ) );
1520 OffsetRect( &virt, GetSystemMetrics( SM_XVIRTUALSCREEN ),
1521 GetSystemMetrics( SM_YVIRTUALSCREEN ) );
1522
1523 TRACE( "Clipping to: %s was: %s screen: %s\n", wine_dbgstr_rect(rect),
1524 wine_dbgstr_rect(&CURSOR_ClipRect), wine_dbgstr_rect(&virt) );
1525
1526 if (!IntersectRect( &CURSOR_ClipRect, &virt, rect ))
1527 CURSOR_ClipRect = virt;
1528
1529 USER_Driver->pClipCursor( rect );
1530 return TRUE;
1531 }
1532
1533
1534 /***********************************************************************
1535 * GetClipCursor (USER32.@)
1536 */
1537 BOOL WINAPI GetClipCursor( RECT *rect )
1538 {
1539 /* If this is first time - initialize the rect */
1540 if (IsRectEmpty( &CURSOR_ClipRect )) ClipCursor( NULL );
1541
1542 return CopyRect( rect, &CURSOR_ClipRect );
1543 }
1544
1545
1546 /***********************************************************************
1547 * SetSystemCursor (USER32.@)
1548 */
1549 BOOL WINAPI SetSystemCursor(HCURSOR hcur, DWORD id)
1550 {
1551 FIXME("(%p,%08x),stub!\n", hcur, id);
1552 return TRUE;
1553 }
1554
1555
1556 /**********************************************************************
1557 * LookupIconIdFromDirectoryEx (USER.364)
1558 *
1559 * FIXME: exact parameter sizes
1560 */
1561 INT16 WINAPI LookupIconIdFromDirectoryEx16( LPBYTE dir, BOOL16 bIcon,
1562 INT16 width, INT16 height, UINT16 cFlag )
1563 {
1564 return LookupIconIdFromDirectoryEx( dir, bIcon, width, height, cFlag );
1565 }
1566
1567 /**********************************************************************
1568 * LookupIconIdFromDirectoryEx (USER32.@)
1569 */
1570 INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
1571 INT width, INT height, UINT cFlag )
1572 {
1573 CURSORICONDIR *dir = (CURSORICONDIR*)xdir;
1574 UINT retVal = 0;
1575 if( dir && !dir->idReserved && (dir->idType & 3) )
1576 {
1577 CURSORICONDIRENTRY* entry;
1578 HDC hdc;
1579 UINT palEnts;
1580 int colors;
1581 hdc = GetDC(0);
1582 palEnts = GetSystemPaletteEntries(hdc, 0, 0, NULL);
1583 if (palEnts == 0)
1584 palEnts = 256;
1585 colors = (cFlag & LR_MONOCHROME) ? 2 : palEnts;
1586
1587 ReleaseDC(0, hdc);
1588
1589 if( bIcon )
1590 entry = CURSORICON_FindBestIconRes( dir, width, height, colors );
1591 else
1592 entry = CURSORICON_FindBestCursorRes( dir, width, height, 1);
1593
1594 if( entry ) retVal = entry->wResId;
1595 }
1596 else WARN_(cursor)("invalid resource directory\n");
1597 return retVal;
1598 }
1599
1600 /**********************************************************************
1601 * LookupIconIdFromDirectory (USER.?)
1602 */
1603 INT16 WINAPI LookupIconIdFromDirectory16( LPBYTE dir, BOOL16 bIcon )
1604 {
1605 return LookupIconIdFromDirectoryEx16( dir, bIcon,
1606 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1607 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1608 }
1609
1610 /**********************************************************************
1611 * LookupIconIdFromDirectory (USER32.@)
1612 */
1613 INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
1614 {
1615 return LookupIconIdFromDirectoryEx( dir, bIcon,
1616 bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
1617 bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
1618 }
1619
1620 /**********************************************************************
1621 * GetIconID (USER.455)
1622 */
1623 WORD WINAPI GetIconID16( HGLOBAL16 hResource, DWORD resType )
1624 {
1625 LPBYTE lpDir = (LPBYTE)GlobalLock16(hResource);
1626
1627 TRACE_(cursor)("hRes=%04x, entries=%i\n",
1628 hResource, lpDir ? ((CURSORICONDIR*)lpDir)->idCount : 0);
1629
1630 switch(resType)
1631 {
1632 case RT_CURSOR:
1633 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, FALSE,
1634 GetSystemMetrics(SM_CXCURSOR), GetSystemMetrics(SM_CYCURSOR), LR_MONOCHROME );
1635 case RT_ICON:
1636 return (WORD)LookupIconIdFromDirectoryEx16( lpDir, TRUE,
1637 GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), 0 );
1638 default:
1639 WARN_(cursor)("invalid res type %d\n", resType );
1640 }
1641 return 0;
1642 }
1643
1644 /**********************************************************************
1645 * LoadCursorIconHandler (USER.336)
1646 *
1647 * Supposed to load resources of Windows 2.x applications.
1648 */
1649 HGLOBAL16 WINAPI LoadCursorIconHandler16( HGLOBAL16 hResource, HMODULE16 hModule, HRSRC16 hRsrc )
1650 {
1651 FIXME_(cursor)("(%04x,%04x,%04x): old 2.x resources are not supported!\n",
1652 hResource, hModule, hRsrc);
1653 return (HGLOBAL16)0;
1654 }
1655
1656 /**********************************************************************
1657 * LoadIconHandler (USER.456)
1658 */
1659 HICON16 WINAPI LoadIconHandler16( HGLOBAL16 hResource, BOOL16 bNew )
1660 {
1661 LPBYTE bits = (LPBYTE)LockResource16( hResource );
1662
1663 TRACE_(cursor)("hRes=%04x\n",hResource);
1664
1665 return HICON_16(CreateIconFromResourceEx( bits, 0, TRUE,
1666 bNew ? 0x00030000 : 0x00020000, 0, 0, LR_DEFAULTCOLOR));
1667 }
1668
1669 /***********************************************************************
1670 * LoadCursorW (USER32.@)
1671 */
1672 HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
1673 {
1674 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1675
1676 return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
1677 LR_SHARED | LR_DEFAULTSIZE );
1678 }
1679
1680 /***********************************************************************
1681 * LoadCursorA (USER32.@)
1682 */
1683 HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
1684 {
1685 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1686
1687 return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
1688 LR_SHARED | LR_DEFAULTSIZE );
1689 }
1690
1691 /***********************************************************************
1692 * LoadCursorFromFileW (USER32.@)
1693 */
1694 HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
1695 {
1696 TRACE("%s\n", debugstr_w(name));
1697
1698 return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
1699 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1700 }
1701
1702 /***********************************************************************
1703 * LoadCursorFromFileA (USER32.@)
1704 */
1705 HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
1706 {
1707 TRACE("%s\n", debugstr_a(name));
1708
1709 return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
1710 LR_LOADFROMFILE | LR_DEFAULTSIZE );
1711 }
1712
1713 /***********************************************************************
1714 * LoadIconW (USER32.@)
1715 */
1716 HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
1717 {
1718 TRACE("%p, %s\n", hInstance, debugstr_w(name));
1719
1720 return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
1721 LR_SHARED | LR_DEFAULTSIZE );
1722 }
1723
1724 /***********************************************************************
1725 * LoadIconA (USER32.@)
1726 */
1727 HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
1728 {
1729 TRACE("%p, %s\n", hInstance, debugstr_a(name));
1730
1731 return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
1732 LR_SHARED | LR_DEFAULTSIZE );
1733 }
1734
1735 /**********************************************************************
1736 * GetIconInfo (USER32.@)
1737 */
1738 BOOL WINAPI GetIconInfo(HICON hIcon, PICONINFO iconinfo)
1739 {
1740 CURSORICONINFO *ciconinfo;
1741 INT height;
1742
1743 ciconinfo = GlobalLock16(HICON_16(hIcon));
1744 if (!ciconinfo)
1745 return FALSE;
1746
1747 TRACE("%p => %dx%d, %d bpp\n", hIcon,
1748 ciconinfo->nWidth, ciconinfo->nHeight, ciconinfo->bBitsPerPixel);
1749
1750 if ( (ciconinfo->ptHotSpot.x == ICON_HOTSPOT) &&
1751 (ciconinfo->ptHotSpot.y == ICON_HOTSPOT) )
1752 {
1753 iconinfo->fIcon = TRUE;
1754 iconinfo->xHotspot = ciconinfo->nWidth / 2;
1755 iconinfo->yHotspot = ciconinfo->nHeight / 2;
1756 }
1757 else
1758 {
1759 iconinfo->fIcon = FALSE;
1760 iconinfo->xHotspot = ciconinfo->ptHotSpot.x;
1761 iconinfo->yHotspot = ciconinfo->ptHotSpot.y;
1762 }
1763
1764 height = ciconinfo->nHeight;
1765
1766 if (ciconinfo->bBitsPerPixel > 1)
1767 {
1768 iconinfo->hbmColor = CreateBitmap( ciconinfo->nWidth, ciconinfo->nHeight,
1769 ciconinfo->bPlanes, ciconinfo->bBitsPerPixel,
1770 (char *)(ciconinfo + 1)
1771 + ciconinfo->nHeight *
1772 get_bitmap_width_bytes (ciconinfo->nWidth,1) );
1773 }
1774 else
1775 {
1776 iconinfo->hbmColor = 0;
1777 height *= 2;
1778 }
1779
1780 iconinfo->hbmMask = CreateBitmap ( ciconinfo->nWidth, height,
1781 1, 1, (char *)(ciconinfo + 1));
1782
1783 GlobalUnlock16(HICON_16(hIcon));
1784
1785 return TRUE;
1786 }
1787
1788 /**********************************************************************
1789 * CreateIconIndirect (USER32.@)
1790 */
1791 HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
1792 {
1793 BITMAP bmpXor,bmpAnd;
1794 HICON16 hObj;
1795 int sizeXor,sizeAnd;
1796
1797 TRACE("color %p, mask %p, hotspot %ux%u, fIcon %d\n",
1798 iconinfo->hbmColor, iconinfo->hbmMask,
1799 iconinfo->xHotspot, iconinfo->yHotspot, iconinfo->fIcon);
1800
1801 if (!iconinfo->hbmMask) return 0;
1802
1803 if (iconinfo->hbmColor)
1804 {
1805 GetObjectW( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
1806 TRACE("color: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
1807 bmpXor.bmWidth, bmpXor.bmHeight, bmpXor.bmWidthBytes,
1808 bmpXor.bmPlanes, bmpXor.bmBitsPixel);
1809 }
1810 GetObjectW( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
1811 TRACE("mask: width %d, height %d, width bytes %d, planes %u, bpp %u\n",
1812 bmpAnd.bmWidth, bmpAnd.bmHeight, bmpAnd.bmWidthBytes,
1813 bmpAnd.bmPlanes, bmpAnd.bmBitsPixel);
1814
1815 sizeXor = iconinfo->hbmColor ? (bmpXor.bmHeight * bmpXor.bmWidthBytes) : 0;
1816 sizeAnd = bmpAnd.bmHeight * get_bitmap_width_bytes(bmpAnd.bmWidth, 1);
1817
1818 hObj = GlobalAlloc16( GMEM_MOVEABLE,
1819 sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
1820 if (hObj)
1821 {
1822 CURSORICONINFO *info;
1823
1824 info = (CURSORICONINFO *)GlobalLock16( hObj );
1825
1826 /* If we are creating an icon, the hotspot is unused */
1827 if (iconinfo->fIcon)
1828 {
1829 info->ptHotSpot.x = ICON_HOTSPOT;
1830 info->ptHotSpot.y = ICON_HOTSPOT;
1831 }
1832 else
1833 {
1834 info->ptHotSpot.x = iconinfo->xHotspot;
1835 info->ptHotSpot.y = iconinfo->yHotspot;
1836 }
1837
1838 if (iconinfo->hbmColor)
1839 {
1840 info->nWidth = bmpXor.bmWidth;
1841 info->nHeight = bmpXor.bmHeight;
1842 info->nWidthBytes = bmpXor.bmWidthBytes;
1843 info->bPlanes = bmpXor.bmPlanes;
1844 info->bBitsPerPixel = bmpXor.bmBitsPixel;
1845 }
1846 else
1847 {
1848 info->nWidth = bmpAnd.bmWidth;
1849 info->nHeight = bmpAnd.bmHeight / 2;
1850 info->nWidthBytes = get_bitmap_width_bytes(bmpAnd.bmWidth, 1);
1851 info->bPlanes = 1;
1852 info->bBitsPerPixel = 1;
1853 }
1854
1855 /* Transfer the bitmap bits to the CURSORICONINFO structure */
1856
1857 /* Some apps pass a color bitmap as a mask, convert it to b/w */
1858 if (bmpAnd.bmBitsPixel == 1)
1859 {
1860 GetBitmapBits( iconinfo->hbmMask, sizeAnd, (char*)(info + 1) );
1861 }
1862 else
1863 {
1864 HDC hdc, hdc_mem;
1865 HBITMAP hbmp_old, hbmp_mem_old, hbmp_mono;
1866
1867 hdc = GetDC( 0 );
1868 hdc_mem = CreateCompatibleDC( hdc );
1869
1870 hbmp_mono = CreateBitmap( bmpAnd.bmWidth, bmpAnd.bmHeight, 1, 1, NULL );
1871
1872 hbmp_old = SelectObject( hdc, iconinfo->hbmMask );
1873 hbmp_mem_old = SelectObject( hdc_mem, hbmp_mono );
1874
1875 BitBlt( hdc_mem, 0, 0, bmpAnd.bmWidth, bmpAnd.bmHeight, hdc, 0, 0, SRCCOPY );
1876
1877 SelectObject( hdc, hbmp_old );
1878 SelectObject( hdc_mem, hbmp_mem_old );
1879
1880 DeleteDC( hdc_mem );
1881 ReleaseDC( 0, hdc );
1882
1883 GetBitmapBits( hbmp_mono, sizeAnd, (char*)(info + 1) );
1884 DeleteObject( hbmp_mono );
1885 }
1886 if (iconinfo->hbmColor) GetBitmapBits( iconinfo->hbmColor, sizeXor, (char*)(info + 1) + sizeAnd );
1887 GlobalUnlock16( hObj );
1888 }
1889 return HICON_32(hObj);
1890 }
1891
1892 /******************************************************************************
1893 * DrawIconEx (USER32.@) Draws an icon or cursor on device context
1894 *
1895 * NOTES
1896 * Why is this using SM_CXICON instead of SM_CXCURSOR?
1897 *
1898 * PARAMS
1899 * hdc [I] Handle to device context
1900 * x0 [I] X coordinate of upper left corner
1901 * y0 [I] Y coordinate of upper left corner
1902 * hIcon [I] Handle to icon to draw
1903 * cxWidth [I] Width of icon
1904 * cyWidth [I] Height of icon
1905 * istep [I] Index of frame in animated cursor
1906 * hbr [I] Handle to background brush
1907 * flags [I] Icon-drawing flags
1908 *
1909 * RETURNS
1910 * Success: TRUE
1911 * Failure: FALSE
1912 */
1913 BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
1914 INT cxWidth, INT cyWidth, UINT istep,
1915 HBRUSH hbr, UINT flags )
1916 {
1917 CURSORICONINFO *ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon));
1918 HDC hDC_off = 0, hMemDC;
1919 BOOL result = FALSE, DoOffscreen;
1920 HBITMAP hB_off = 0, hOld = 0;
1921
1922 if (!ptr) return FALSE;
1923 TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
1924 hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
1925
1926 hMemDC = CreateCompatibleDC (hdc);
1927 if (istep)
1928 FIXME_(icon)("Ignoring istep=%d\n", istep);
1929 if (flags & DI_COMPAT)
1930 FIXME_(icon)("Ignoring flag DI_COMPAT\n");
1931
1932 if (!flags) {
1933 FIXME_(icon)("no flags set? setting to DI_NORMAL\n");
1934 flags = DI_NORMAL;
1935 }
1936
1937 /* Calculate the size of the destination image. */
1938 if (cxWidth == 0)
1939 {
1940 if (flags & DI_DEFAULTSIZE)
1941 cxWidth = GetSystemMetrics (SM_CXICON);
1942 else
1943 cxWidth = ptr->nWidth;
1944 }
1945 if (cyWidth == 0)
1946 {
1947 if (flags & DI_DEFAULTSIZE)
1948 cyWidth = GetSystemMetrics (SM_CYICON);
1949 else
1950 cyWidth = ptr->nHeight;
1951 }
1952
1953 DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
1954
1955 if (DoOffscreen) {
1956 RECT r;
1957
1958 r.left = 0;
1959 r.top = 0;
1960 r.right = cxWidth;
1961 r.bottom = cxWidth;
1962
1963 hDC_off = CreateCompatibleDC(hdc);
1964 hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth);
1965 if (hDC_off && hB_off) {
1966 hOld = SelectObject(hDC_off, hB_off);
1967 FillRect(hDC_off, &r, hbr);
1968 }
1969 }
1970
1971 if (hMemDC && (!DoOffscreen || (hDC_off && hB_off)))
1972 {
1973 HBITMAP hXorBits, hAndBits;
1974 COLORREF oldFg, oldBg;
1975 INT nStretchMode;
1976
1977 nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
1978
1979 hXorBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
1980 ptr->bPlanes, ptr->bBitsPerPixel,
1981 (char *)(ptr + 1)
1982 + ptr->nHeight *
1983 get_bitmap_width_bytes(ptr->nWidth,1) );
1984 hAndBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
1985 1, 1, (char *)(ptr+1) );
1986 oldFg = SetTextColor( hdc, RGB(0,0,0) );
1987 oldBg = SetBkColor( hdc, RGB(255,255,255) );
1988
1989 if (hXorBits && hAndBits)
1990 {
1991 HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
1992 if (flags & DI_MASK)
1993 {
1994 if (DoOffscreen)
1995 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
1996 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
1997 else
1998 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
1999 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
2000 }
2001 SelectObject( hMemDC, hXorBits );
2002 if (flags & DI_IMAGE)
2003 {
2004 if (DoOffscreen)
2005 StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
2006 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
2007 else
2008 StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
2009 hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
2010 }
2011 SelectObject( hMemDC, hBitTemp );
2012 result = TRUE;
2013 }
2014
2015 SetTextColor( hdc, oldFg );
2016 SetBkColor( hdc, oldBg );
2017 if (hXorBits) DeleteObject( hXorBits );
2018 if (hAndBits) DeleteObject( hAndBits );
2019 SetStretchBltMode (hdc, nStretchMode);
2020 if (DoOffscreen) {
2021 BitBlt(hdc, x0, y0, cxWidth, cyWidth, hDC_off, 0, 0, SRCCOPY);
2022 SelectObject(hDC_off, hOld);
2023 }
2024 }
2025 if (hMemDC) DeleteDC( hMemDC );
2026 if (hDC_off) DeleteDC(hDC_off);
2027 if (hB_off) DeleteObject(hB_off);
2028 GlobalUnlock16(HICON_16(hIcon));
2029 return result;
2030 }
2031
2032 /***********************************************************************
2033 * DIB_FixColorsToLoadflags
2034 *
2035 * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
2036 * are in loadflags
2037 */
2038 static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
2039 {
2040 int colors;
2041 COLORREF c_W, c_S, c_F, c_L, c_C;
2042 int incr,i;
2043 RGBQUAD *ptr;
2044 int bitmap_type;
2045 LONG width;
2046 LONG height;
2047 WORD bpp;
2048 DWORD compr;
2049
2050 if (((bitmap_type = DIB_GetBitmapInfo((BITMAPINFOHEADER*) bmi, &width, &height, &bpp, &compr)) == -1))
2051 {
2052 WARN_(resource)("Invalid bitmap\n");
2053 return;
2054 }
2055
2056 if (bpp > 8) return;
2057
2058 if (bitmap_type == 0) /* BITMAPCOREHEADER */
2059 {
2060 incr = 3;
2061 colors = 1 << bpp;
2062 }
2063 else
2064 {
2065 incr = 4;
2066 colors = bmi->bmiHeader.biClrUsed;
2067 if (colors > 256) colors = 256;
2068 if (!colors && (bpp <= 8)) colors = 1 << bpp;
2069 }
2070
2071 c_W = GetSysColor(COLOR_WINDOW);
2072 c_S = GetSysColor(COLOR_3DSHADOW);
2073 c_F = GetSysColor(COLOR_3DFACE);
2074 c_L = GetSysColor(COLOR_3DLIGHT);
2075
2076 if (loadflags & LR_LOADTRANSPARENT) {
2077 switch (bpp) {
2078 case 1: pix = pix >> 7; break;
2079 case 4: pix = pix >> 4; break;
2080 case 8: break;
2081 default:
2082 WARN_(resource)("(%d): Unsupported depth\n", bpp);
2083 return;
2084 }
2085 if (pix >= colors) {
2086 WARN_(resource)("pixel has color index greater than biClrUsed!\n");
2087 return;
2088 }
2089 if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
2090 ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
2091 ptr->rgbBlue = GetBValue(c_W);
2092 ptr->rgbGreen = GetGValue(c_W);
2093 ptr->rgbRed = GetRValue(c_W);
2094 }
2095 if (loadflags & LR_LOADMAP3DCOLORS)
2096 for (i=0; i<colors; i++) {
2097 ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
2098 c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
2099 if (c_C == RGB(128, 128, 128)) {
2100 ptr->rgbRed = GetRValue(c_S);
2101 ptr->rgbGreen = GetGValue(c_S);
2102 ptr->rgbBlue = GetBValue(c_S);
2103 } else if (c_C == RGB(192, 192, 192)) {
2104 ptr->rgbRed = GetRValue(c_F);
2105 ptr->rgbGreen = GetGValue(c_F);
2106 ptr->rgbBlue = GetBValue(c_F);
2107 } else if (c_C == RGB(223, 223, 223)) {
2108 ptr->rgbRed = GetRValue(c_L);
2109 ptr->rgbGreen = GetGValue(c_L);
2110 ptr->rgbBlue = GetBValue(c_L);
2111 }
2112 }
2113 }
2114
2115
2116 /**********************************************************************
2117 * BITMAP_Load
2118 */
2119 static HBITMAP BITMAP_Load( HINSTANCE instance, LPCWSTR name,
2120 INT desiredx, INT desiredy, UINT loadflags )
2121 {
2122 HBITMAP hbitmap = 0, orig_bm;
2123 HRSRC hRsrc;
2124 HGLOBAL handle;
2125 char *ptr = NULL;
2126 BITMAPINFO *info, *fix_info = NULL, *scaled_info = NULL;
2127 int size;
2128 BYTE pix;
2129 char *bits;
2130 LONG width, height, new_width, new_height;
2131 WORD bpp_dummy;
2132 DWORD compr_dummy;
2133 INT bm_type;
2134 HDC screen_mem_dc = NULL;
2135
2136 if (!(loadflags & LR_LOADFROMFILE))
2137 {
2138 if (!instance)
2139 {
2140 /* OEM bitmap: try to load the resource from user32.dll */
2141 instance = user32_module;
2142 }
2143
2144 if (!(hRsrc = FindResourceW( instance, name, (LPWSTR)RT_BITMAP ))) return 0;
2145 if (!(handle = LoadResource( instance, hRsrc ))) return 0;
2146
2147 if ((info = (BITMAPINFO *)LockResource( handle )) == NULL) return 0;
2148 }
2149 else
2150 {
2151 BITMAPFILEHEADER * bmfh;
2152
2153 if (!(ptr = map_fileW( name, NULL ))) return 0;
2154 info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
2155 bmfh = (BITMAPFILEHEADER *)ptr;
2156 if (!( bmfh->bfType == 0x4d42 /* 'BM' */ &&
2157 bmfh->bfReserved1 == 0 &&
2158 bmfh->bfReserved2 == 0))
2159 {
2160 WARN("Invalid/unsupported bitmap format!\n");
2161 UnmapViewOfFile( ptr );
2162 return 0;
2163 }
2164 }
2165
2166 size = bitmap_info_size(info, DIB_RGB_COLORS);
2167 fix_info = HeapAlloc(GetProcessHeap(), 0, size);
2168 scaled_info = HeapAlloc(GetProcessHeap(), 0, size);
2169
2170 if (!fix_info || !scaled_info) goto end;
2171 memcpy(fix_info, info, size);
2172
2173 pix = *((LPBYTE)info + size);
2174 DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
2175
2176 memcpy(scaled_info, fix_info, size);
2177 bm_type = DIB_GetBitmapInfo( &fix_info->bmiHeader, &width, &height,
2178 &bpp_dummy, &compr_dummy);
2179 if(desiredx != 0)
2180 new_width = desiredx;
2181 else
2182 new_width = width;
2183
2184 if(desiredy != 0)
2185 new_height = height > 0 ? desiredy : -desiredy;
2186 else
2187 new_height = height;
2188
2189 if(bm_type == 0)
2190 {
2191 BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)&scaled_info->bmiHeader;
2192 core->bcWidth = new_width;
2193 core->bcHeight = new_height;
2194 }
2195 else
2196 {
2197 scaled_info->bmiHeader.biWidth = new_width;
2198 scaled_info->bmiHeader.biHeight = new_height;
2199 }
2200
2201 if (new_height < 0) new_height = -new_height;
2202
2203 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2204 if (!(screen_mem_dc = CreateCompatibleDC( screen_dc ))) goto end;
2205
2206 bits = (char *)info + size;
2207
2208 if (loadflags & LR_CREATEDIBSECTION)
2209 {
2210 scaled_info->bmiHeader.biCompression = 0; /* DIBSection can't be compressed */
2211 hbitmap = CreateDIBSection(screen_dc, scaled_info, DIB_RGB_COLORS, NULL, 0, 0);
2212 }
2213 else
2214 {
2215 if (is_dib_monochrome(fix_info))
2216 hbitmap = CreateBitmap(new_width, new_height, 1, 1, NULL);
2217 else
2218 hbitmap = CreateCompatibleBitmap(screen_dc, new_width, new_height);
2219 }
2220
2221 orig_bm = SelectObject(screen_mem_dc, hbitmap);
2222 StretchDIBits(screen_mem_dc, 0, 0, new_width, new_height, 0, 0, width, height, bits, fix_info, DIB_RGB_COLORS, SRCCOPY);
2223 SelectObject(screen_mem_dc, orig_bm);
2224
2225 end:
2226 if (screen_mem_dc) DeleteDC(screen_mem_dc);
2227 HeapFree(GetProcessHeap(), 0, scaled_info);
2228 HeapFree(GetProcessHeap(), 0, fix_info);
2229 if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
2230
2231 return hbitmap;
2232 }
2233
2234 /**********************************************************************
2235 * LoadImageA (USER32.@)
2236 *
2237 * See LoadImageW.
2238 */
2239 HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
2240 INT desiredx, INT desiredy, UINT loadflags)
2241 {
2242 HANDLE res;
2243 LPWSTR u_name;
2244
2245 if (!HIWORD(name))
2246 return LoadImageW(hinst, (LPCWSTR)name, type, desiredx, desiredy, loadflags);
2247
2248 __TRY {
2249 DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
2250 u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
2251 MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
2252 }
2253 __EXCEPT_PAGE_FAULT {
2254 SetLastError( ERROR_INVALID_PARAMETER );
2255 return 0;
2256 }
2257 __ENDTRY
2258 res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
2259 HeapFree(GetProcessHeap(), 0, u_name);
2260 return res;
2261 }
2262
2263
2264 /******************************************************************************
2265 * LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
2266 *
2267 * PARAMS
2268 * hinst [I] Handle of instance that contains image
2269 * name [I] Name of image
2270 * type [I] Type of image
2271 * desiredx [I] Desired width
2272 * desiredy [I] Desired height
2273 * loadflags [I] Load flags
2274 *
2275 * RETURNS
2276 * Success: Handle to newly loaded image
2277 * Failure: NULL
2278 *
2279 * FIXME: Implementation lacks some features, see LR_ defines in winuser.h
2280 */
2281 HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
2282 INT desiredx, INT desiredy, UINT loadflags )
2283 {
2284 TRACE_(resource)("(%p,%s,%d,%d,%d,0x%08x)\n",
2285 hinst,debugstr_w(name),type,desiredx,desiredy,loadflags);
2286
2287 if (loadflags & LR_DEFAULTSIZE) {
2288 if (type == IMAGE_ICON) {
2289 if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON);
2290 if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON);
2291 } else if (type == IMAGE_CURSOR) {
2292 if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR);
2293 if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR);
2294 }
2295 }
2296 if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
2297 switch (type) {
2298 case IMAGE_BITMAP:
2299 return BITMAP_Load( hinst, name, desiredx, desiredy, loadflags );
2300
2301 case IMAGE_ICON:
2302 if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
2303 if (screen_dc)
2304 {
2305 UINT palEnts = GetSystemPaletteEntries(screen_dc, 0, 0, NULL);
2306 if (palEnts == 0) palEnts = 256;
2307 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2308 palEnts, FALSE, loadflags);
2309 }
2310 break;
2311
2312 case IMAGE_CURSOR:
2313 return CURSORICON_Load(hinst, name, desiredx, desiredy,
2314 1, TRUE, loadflags);
2315 }
2316 return 0;
2317 }
2318
2319 /******************************************************************************
2320 * CopyImage (USER32.@) Creates new image and copies attributes to it
2321 *
2322 * PARAMS
2323 * hnd [I] Handle to image to copy
2324 * type [I] Type of image to copy
2325 * desiredx [I] Desired width of new image
2326 * desiredy [I] Desired height of new image
2327 * flags [I] Copy flags
2328 *
2329 * RETURNS
2330 * Success: Handle to newly created image
2331 * Failure: NULL
2332 *
2333 * BUGS
2334 * Only Windows NT 4.0 supports the LR_COPYRETURNORG flag for bitmaps,
2335 * all other versions (95/2000/XP have been tested) ignore it.
2336 *
2337 * NOTES
2338 * If LR_CREATEDIBSECTION is absent, the copy will be monochrome for
2339 * a monochrome source bitmap or if LR_MONOCHROME is present, otherwise
2340 * the copy will have the same depth as the screen.
2341 * The content of the image will only be copied if the bit depth of the
2342 * original image is compatible with the bit depth of the screen, or
2343 * if the source is a DIB section.
2344 * The LR_MONOCHROME flag is ignored if LR_CREATEDIBSECTION is present.
2345 */
2346 HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
2347 INT desiredy, UINT flags )
2348 {
2349 TRACE("hnd=%p, type=%u, desiredx=%d, desiredy=%d, flags=%x\n",
2350 hnd, type, desiredx, desiredy, flags);
2351
2352 switch (type)
2353 {
2354 case IMAGE_BITMAP:
2355 {
2356 HBITMAP res = NULL;
2357 DIBSECTION ds;
2358 int objSize;
2359 BITMAPINFO * bi;
2360
2361 objSize = GetObjectW( hnd, sizeof(ds), &ds );
2362 if (!objSize) return 0;
2363 if ((desiredx < 0) || (desiredy < 0)) return 0;
2364
2365 if (flags & LR_COPYFROMRESOURCE)
2366 {
2367 FIXME("The flag LR_COPYFROMRESOURCE is not implemented for bitmaps\n");
2368 }
2369
2370 if (desiredx == 0) desiredx = ds.dsBm.bmWidth;
2371 if (desiredy == 0) desiredy = ds.dsBm.bmHeight;
2372
2373 /* Allocate memory for a BITMAPINFOHEADER structure and a
2374 color table. The maximum number of colors in a color table
2375 is 256 which corresponds to a bitmap with depth 8.
2376 Bitmaps with higher depths don't have color tables. */
2377 bi = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
2378 if (!bi) return 0;
2379
2380 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2381 bi->bmiHeader.biPlanes = ds.dsBm.bmPlanes;
2382 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2383 bi->bmiHeader.biCompression = BI_RGB;
2384
2385 if (flags & LR_CREATEDIBSECTION)
2386 {
2387 /* Create a DIB section. LR_MONOCHROME is ignored */
2388 void * bits;
2389 HDC dc = CreateCompatibleDC(NULL);
2390
2391 if (objSize == sizeof(DIBSECTION))
2392 {
2393 /* The source bitmap is a DIB.
2394 Get its attributes to create an exact copy */
2395 memcpy(bi, &ds.dsBmih, sizeof(BITMAPINFOHEADER));
2396 }
2397
2398 /* Get the color table or the color masks */
2399 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2400
2401 bi->bmiHeader.biWidth = desiredx;
2402 bi->bmiHeader.biHeight = desiredy;
2403 bi->bmiHeader.biSizeImage = 0;
2404
2405 res = CreateDIBSection(dc, bi, DIB_RGB_COLORS, &bits, NULL, 0);
2406 DeleteDC(dc);
2407 }
2408 else
2409 {
2410 /* Create a device-dependent bitmap */
2411
2412 BOOL monochrome = (flags & LR_MONOCHROME);
2413
2414 if (objSize == sizeof(DIBSECTION))
2415 {
2416 /* The source bitmap is a DIB section.
2417 Get its attributes */
2418 HDC dc = CreateCompatibleDC(NULL);
2419 bi->bmiHeader.biSize = sizeof(bi->bmiHeader);
2420 bi->bmiHeader.biBitCount = ds.dsBm.bmBitsPixel;
2421 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2422 DeleteDC(dc);
2423
2424 if (!monochrome && ds.dsBm.bmBitsPixel == 1)
2425 {
2426 /* Look if the colors of the DIB are black and white */
2427
2428 monochrome =
2429 (bi->bmiColors[0].rgbRed == 0xff
2430 && bi->bmiColors[0].rgbGreen == 0xff
2431 && bi->bmiColors[0].rgbBlue == 0xff
2432 && bi->bmiColors[0].rgbReserved == 0
2433 && bi->bmiColors[1].rgbRed == 0
2434 && bi->bmiColors[1].rgbGreen == 0
2435 && bi->bmiColors[1].rgbBlue == 0
2436 && bi->bmiColors[1].rgbReserved == 0)
2437 ||
2438 (bi->bmiColors[0].rgbRed == 0
2439 && bi->bmiColors[0].rgbGreen == 0
2440 && bi->bmiColors[0].rgbBlue == 0
2441 && bi->bmiColors[0].rgbReserved == 0
2442 && bi->bmiColors[1].rgbRed == 0xff
2443 && bi->bmiColors[1].rgbGreen == 0xff
2444 && bi->bmiColors[1].rgbBlue == 0xff
2445 && bi->bmiColors[1].rgbReserved == 0);
2446 }
2447 }
2448 else if (!monochrome)
2449 {
2450 monochrome = ds.dsBm.bmBitsPixel == 1;
2451 }
2452
2453 if (monochrome)
2454 {
2455 res = CreateBitmap(desiredx, desiredy, 1, 1, NULL);
2456 }
2457 else
2458 {
2459 HDC screenDC = GetDC(NULL);
2460 res = CreateCompatibleBitmap(screenDC, desiredx, desiredy);
2461 ReleaseDC(NULL, screenDC);
2462 }
2463 }
2464
2465 if (res)
2466 {
2467 /* Only copy the bitmap if it's a DIB section or if it's
2468 compatible to the screen */
2469 BOOL copyContents;
2470
2471 if (objSize == sizeof(DIBSECTION))
2472 {
2473 copyContents = TRUE;
2474 }
2475 else
2476 {
2477 HDC screenDC = GetDC(NULL);
2478 int screen_depth = GetDeviceCaps(screenDC, BITSPIXEL);
2479 ReleaseDC(NULL, screenDC);
2480
2481 copyContents = (ds.dsBm.bmBitsPixel == 1 || ds.dsBm.bmBitsPixel == screen_depth);
2482 }
2483
2484 if (copyContents)
2485 {
2486 /* The source bitmap may already be selected in a device context,
2487 use GetDIBits/StretchDIBits and not StretchBlt */
2488
2489 HDC dc;
2490 void * bits;
2491
2492 dc = CreateCompatibleDC(NULL);
2493
2494 bi->bmiHeader.biWidth = ds.dsBm.bmWidth;
2495 bi->bmiHeader.biHeight = ds.dsBm.bmHeight;
2496 bi->bmiHeader.biSizeImage = 0;
2497 bi->bmiHeader.biClrUsed = 0;
2498 bi->bmiHeader.biClrImportant = 0;
2499
2500 /* Fill in biSizeImage */
2501 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, NULL, bi, DIB_RGB_COLORS);
2502 bits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bi->bmiHeader.biSizeImage);
2503
2504 if (bits)
2505 {
2506 HBITMAP oldBmp;
2507
2508 /* Get the image bits of the source bitmap */
2509 GetDIBits(dc, hnd, 0, ds.dsBm.bmHeight, bits, bi, DIB_RGB_COLORS);
2510
2511 /* Copy it to the destination bitmap */
2512 oldBmp = SelectObject(dc, res);
2513 StretchDIBits(dc, 0, 0, desiredx, desiredy,
2514 0, 0, ds.dsBm.bmWidth, ds.dsBm.bmHeight,
2515 bits, bi, DIB_RGB_COLORS, SRCCOPY);
2516 SelectObject(dc, oldBmp);
2517
2518 HeapFree(GetProcessHeap(), 0, bits);
2519 }
2520
2521 DeleteDC(dc);
2522 }
2523
2524 if (flags & LR_COPYDELETEORG)
2525 {
2526 DeleteObject(hnd);
2527 }
2528 }
2529 HeapFree(GetProcessHeap(), 0, bi);
2530 return res;
2531 }
2532 case IMAGE_ICON:
2533 return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags);
2534 case IMAGE_CURSOR:
2535 /* Should call CURSORICON_ExtCopy but more testing
2536 * needs to be done before we change this
2537 */
2538 if (flags) FIXME("Flags are ignored\n");
2539 return CopyCursor(hnd);
2540 }
2541 return 0;
2542 }
2543
2544
2545 /******************************************************************************
2546 * LoadBitmapW (USER32.@) Loads bitmap from the executable file
2547 *
2548 * RETURNS
2549 * Success: Handle to specified bitmap
2550 * Failure: NULL
2551 */
2552 HBITMAP WINAPI LoadBitmapW(
2553 HINSTANCE instance, /* [in] Handle to application instance */
2554 LPCWSTR name) /* [in] Address of bitmap resource name */
2555 {
2556 return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2557 }
2558
2559 /**********************************************************************
2560 * LoadBitmapA (USER32.@)
2561 *
2562 * See LoadBitmapW.
2563 */
2564 HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
2565 {
2566 return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
2567 }
useful hacks and other patches not (yet) suitable for mainline