Add dumping of lnk files.
[wine/dcerpc.git] / dlls / comctl32 / imagelist.c
blobf10ce16670eb6941bdc66572d3a511f9ade0c08c
1 /*
2 * ImageList implementation
4 * Copyright 1998 Eric Kohl
5 * Copyright 2000 Jason Mawdsley
6 * Copyright 2001, 2004 Michael Stefaniuc
7 * Copyright 2001 Charles Loep for CodeWeavers
8 * Copyright 2002 Dimitrie O. Paun
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * NOTE
26 * This code was audited for completeness against the documented features
27 * of Comctl32.dll version 6.0 on Sep. 12, 2002, by Dimitrie O. Paun.
29 * Unless otherwise noted, we believe this code to be complete, as per
30 * the specification mentioned above.
31 * If you discover missing features, or bugs, please note them below.
33 * TODO:
34 * - Add support for ILD_PRESERVEALPHA, ILD_SCALE, ILD_DPISCALE
35 * - Add support for ILS_GLOW, ILS_SHADOW, ILS_SATURATE, ILS_ALPHA
36 * - Thread-safe locking
39 #include <stdarg.h>
40 #include <stdlib.h>
41 #include <string.h>
43 #define COBJMACROS
45 #include "winerror.h"
46 #include "windef.h"
47 #include "winbase.h"
48 #include "objbase.h"
49 #include "wingdi.h"
50 #include "winuser.h"
51 #include "commctrl.h"
52 #include "comctl32.h"
53 #include "imagelist.h"
54 #include "wine/debug.h"
56 WINE_DEFAULT_DEBUG_CHANNEL(imagelist);
59 #define MAX_OVERLAYIMAGE 15
61 /* internal image list data used for Drag & Drop operations */
62 typedef struct
64 HWND hwnd;
65 HIMAGELIST himl;
66 /* position of the drag image relative to the window */
67 INT x;
68 INT y;
69 /* offset of the hotspot relative to the origin of the image */
70 INT dxHotspot;
71 INT dyHotspot;
72 /* is the drag image visible */
73 BOOL bShow;
74 /* saved background */
75 HBITMAP hbmBg;
76 } INTERNALDRAG;
78 static INTERNALDRAG InternalDrag = { 0, 0, 0, 0, 0, 0, FALSE, 0 };
80 static HBITMAP ImageList_CreateImage(HDC hdc, HIMAGELIST himl, UINT width, UINT height);
82 static inline BOOL is_valid(HIMAGELIST himl)
84 return himl && himl->magic == IMAGELIST_MAGIC;
88 /*************************************************************************
89 * IMAGELIST_InternalExpandBitmaps [Internal]
91 * Expands the bitmaps of an image list by the given number of images.
93 * PARAMS
94 * himl [I] handle to image list
95 * nImageCount [I] number of images to add
97 * RETURNS
98 * nothing
100 * NOTES
101 * This function can NOT be used to reduce the number of images.
103 static void
104 IMAGELIST_InternalExpandBitmaps (HIMAGELIST himl, INT nImageCount, INT cx, INT cy)
106 HDC hdcBitmap;
107 HBITMAP hbmNewBitmap, hbmNull;
108 INT nNewWidth, nNewCount;
110 if ((himl->cCurImage + nImageCount <= himl->cMaxImage)
111 && (himl->cy >= cy))
112 return;
114 if (cy == 0) cy = himl->cy;
115 nNewCount = himl->cCurImage + nImageCount + himl->cGrow;
116 nNewWidth = nNewCount * himl->cx;
118 TRACE("Create expanded bitmaps : himl=%p x=%d y=%d count=%d\n", himl, nNewWidth, cy, nNewCount);
119 hdcBitmap = CreateCompatibleDC (0);
121 hbmNewBitmap = ImageList_CreateImage(hdcBitmap, himl, nNewWidth, cy);
123 if (hbmNewBitmap == 0)
124 ERR("creating new image bitmap (x=%d y=%d)!\n", nNewWidth, cy);
126 if(himl->cCurImage)
128 hbmNull = SelectObject (hdcBitmap, hbmNewBitmap);
129 BitBlt (hdcBitmap, 0, 0, himl->cCurImage * himl->cx, cy,
130 himl->hdcImage, 0, 0, SRCCOPY);
131 SelectObject (hdcBitmap, hbmNull);
133 SelectObject (himl->hdcImage, hbmNewBitmap);
134 DeleteObject (himl->hbmImage);
135 himl->hbmImage = hbmNewBitmap;
137 if (himl->flags & ILC_MASK)
139 hbmNewBitmap = CreateBitmap (nNewWidth, cy, 1, 1, NULL);
141 if (hbmNewBitmap == 0)
142 ERR("creating new mask bitmap!\n");
144 if(himl->cCurImage)
146 hbmNull = SelectObject (hdcBitmap, hbmNewBitmap);
147 BitBlt (hdcBitmap, 0, 0, himl->cCurImage * himl->cx, cy,
148 himl->hdcMask, 0, 0, SRCCOPY);
149 SelectObject (hdcBitmap, hbmNull);
151 SelectObject (himl->hdcMask, hbmNewBitmap);
152 DeleteObject (himl->hbmMask);
153 himl->hbmMask = hbmNewBitmap;
156 himl->cMaxImage = nNewCount;
158 DeleteDC (hdcBitmap);
162 /*************************************************************************
163 * ImageList_Add [COMCTL32.@]
165 * Add an image or images to an image list.
167 * PARAMS
168 * himl [I] handle to image list
169 * hbmImage [I] handle to image bitmap
170 * hbmMask [I] handle to mask bitmap
172 * RETURNS
173 * Success: Index of the first new image.
174 * Failure: -1
177 INT WINAPI
178 ImageList_Add (HIMAGELIST himl, HBITMAP hbmImage, HBITMAP hbmMask)
180 HDC hdcBitmap;
181 INT nFirstIndex, nImageCount;
182 INT nStartX;
183 BITMAP bmp;
184 HBITMAP hOldBitmap;
186 TRACE("himl=%p hbmimage=%p hbmmask=%p\n", himl, hbmImage, hbmMask);
187 if (!is_valid(himl))
188 return -1;
190 GetObjectA (hbmImage, sizeof(BITMAP), (LPVOID)&bmp);
191 nImageCount = bmp.bmWidth / himl->cx;
193 IMAGELIST_InternalExpandBitmaps (himl, nImageCount, bmp.bmWidth, bmp.bmHeight);
195 nStartX = himl->cCurImage * himl->cx;
197 hdcBitmap = CreateCompatibleDC(0);
199 hOldBitmap = SelectObject(hdcBitmap, hbmImage);
201 /* Copy result to the imagelist
203 BitBlt (himl->hdcImage, nStartX, 0, bmp.bmWidth, bmp.bmHeight,
204 hdcBitmap, 0, 0, SRCCOPY);
206 if(himl->hbmMask)
208 HDC hdcTemp;
209 HBITMAP hOldBitmapTemp;
211 hdcTemp = CreateCompatibleDC(0);
212 hOldBitmapTemp = SelectObject(hdcTemp, hbmMask);
214 BitBlt (himl->hdcMask,
215 nStartX, 0, bmp.bmWidth, bmp.bmHeight,
216 hdcTemp,
217 0, 0,
218 SRCCOPY);
220 SelectObject(hdcTemp, hOldBitmapTemp);
221 DeleteDC(hdcTemp);
223 /* Remove the background from the image
225 BitBlt (himl->hdcImage,
226 nStartX, 0, bmp.bmWidth, bmp.bmHeight,
227 himl->hdcMask,
228 nStartX, 0,
229 0x220326); /* NOTSRCAND */
232 SelectObject(hdcBitmap, hOldBitmap);
233 DeleteDC(hdcBitmap);
235 nFirstIndex = himl->cCurImage;
236 himl->cCurImage += nImageCount;
238 return nFirstIndex;
242 /*************************************************************************
243 * ImageList_AddIcon [COMCTL32.@]
245 * Adds an icon to an image list.
247 * PARAMS
248 * himl [I] handle to image list
249 * hIcon [I] handle to icon
251 * RETURNS
252 * Success: index of the new image
253 * Failure: -1
255 #undef ImageList_AddIcon
256 INT WINAPI ImageList_AddIcon (HIMAGELIST himl, HICON hIcon)
258 return ImageList_ReplaceIcon (himl, -1, hIcon);
262 /*************************************************************************
263 * ImageList_AddMasked [COMCTL32.@]
265 * Adds an image or images to an image list and creates a mask from the
266 * specified bitmap using the mask color.
268 * PARAMS
269 * himl [I] handle to image list.
270 * hBitmap [I] handle to bitmap
271 * clrMask [I] mask color.
273 * RETURNS
274 * Success: Index of the first new image.
275 * Failure: -1
278 INT WINAPI
279 ImageList_AddMasked (HIMAGELIST himl, HBITMAP hBitmap, COLORREF clrMask)
281 HDC hdcMask, hdcBitmap;
282 INT nIndex, nImageCount, nMaskXOffset=0;
283 BITMAP bmp;
284 HBITMAP hOldBitmap;
285 HBITMAP hMaskBitmap=0;
286 COLORREF bkColor;
288 TRACE("himl=%p hbitmap=%p clrmask=%lx\n", himl, hBitmap, clrMask);
289 if (!is_valid(himl))
290 return -1;
292 if (!GetObjectA (hBitmap, sizeof(BITMAP), &bmp))
293 return -1;
295 if (himl->cx > 0)
296 nImageCount = bmp.bmWidth / himl->cx;
297 else
298 nImageCount = 0;
300 IMAGELIST_InternalExpandBitmaps (himl, nImageCount, bmp.bmWidth, bmp.bmHeight);
302 nIndex = himl->cCurImage;
303 himl->cCurImage += nImageCount;
305 hdcBitmap = CreateCompatibleDC(0);
308 hOldBitmap = SelectObject(hdcBitmap, hBitmap);
309 if(himl->hbmMask)
311 hdcMask = himl->hdcMask;
312 nMaskXOffset = nIndex * himl->cx;
314 else
317 Create a temp Mask so we can remove the background of
318 the Image (Windows does this even if there is no mask)
320 hdcMask = CreateCompatibleDC(0);
321 hMaskBitmap = CreateBitmap(bmp.bmWidth, bmp.bmHeight, 1, 1, NULL);
322 SelectObject(hdcMask, hMaskBitmap);
323 nMaskXOffset = 0;
325 /* create monochrome image to the mask bitmap */
326 bkColor = (clrMask != CLR_DEFAULT) ? clrMask :
327 GetPixel (hdcBitmap, 0, 0);
328 SetBkColor (hdcBitmap, bkColor);
329 BitBlt (hdcMask,
330 nMaskXOffset, 0, bmp.bmWidth, bmp.bmHeight,
331 hdcBitmap, 0, 0,
332 SRCCOPY);
334 SetBkColor(hdcBitmap, RGB(255,255,255));
335 /*Remove the background from the image
338 WINDOWS BUG ALERT!!!!!!
339 The statement below should not be done in common practice
340 but this is how ImageList_AddMasked works in Windows.
341 It overwrites the original bitmap passed, this was discovered
342 by using the same bitmap to iterate the different styles
343 on windows where it failed (BUT ImageList_Add is OK)
344 This is here in case some apps rely on this bug
346 BitBlt(hdcBitmap,
347 0, 0, bmp.bmWidth, bmp.bmHeight,
348 hdcMask,
349 nMaskXOffset, 0,
350 0x220326); /* NOTSRCAND */
351 /* Copy result to the imagelist
353 BitBlt (himl->hdcImage,
354 nIndex * himl->cx, 0, bmp.bmWidth, bmp.bmHeight,
355 hdcBitmap,
356 0, 0,
357 SRCCOPY);
358 /* Clean up
360 SelectObject(hdcBitmap, hOldBitmap);
361 DeleteDC(hdcBitmap);
362 if(!himl->hbmMask)
364 DeleteObject(hMaskBitmap);
365 DeleteDC(hdcMask);
368 return nIndex;
372 /*************************************************************************
373 * ImageList_BeginDrag [COMCTL32.@]
375 * Creates a temporary image list that contains one image. It will be used
376 * as a drag image.
378 * PARAMS
379 * himlTrack [I] handle to the source image list
380 * iTrack [I] index of the drag image in the source image list
381 * dxHotspot [I] X position of the hot spot of the drag image
382 * dyHotspot [I] Y position of the hot spot of the drag image
384 * RETURNS
385 * Success: TRUE
386 * Failure: FALSE
389 BOOL WINAPI
390 ImageList_BeginDrag (HIMAGELIST himlTrack, INT iTrack,
391 INT dxHotspot, INT dyHotspot)
393 INT cx, cy;
395 TRACE("(himlTrack=%p iTrack=%d dx=%d dy=%d)\n", himlTrack, iTrack,
396 dxHotspot, dyHotspot);
398 if (!is_valid(himlTrack))
399 return FALSE;
401 if (InternalDrag.himl)
402 ImageList_EndDrag ();
404 cx = himlTrack->cx;
405 cy = himlTrack->cy;
407 InternalDrag.himl = ImageList_Create (cx, cy, himlTrack->flags, 1, 1);
408 if (InternalDrag.himl == NULL) {
409 WARN("Error creating drag image list!\n");
410 return FALSE;
413 InternalDrag.dxHotspot = dxHotspot;
414 InternalDrag.dyHotspot = dyHotspot;
416 /* copy image */
417 BitBlt (InternalDrag.himl->hdcImage, 0, 0, cx, cy, himlTrack->hdcImage, iTrack * cx, 0, SRCCOPY);
419 /* copy mask */
420 BitBlt (InternalDrag.himl->hdcMask, 0, 0, cx, cy, himlTrack->hdcMask, iTrack * cx, 0, SRCCOPY);
422 InternalDrag.himl->cCurImage = 1;
424 return TRUE;
428 /*************************************************************************
429 * ImageList_Copy [COMCTL32.@]
431 * Copies an image of the source image list to an image of the
432 * destination image list. Images can be copied or swapped.
434 * PARAMS
435 * himlDst [I] handle to the destination image list
436 * iDst [I] destination image index.
437 * himlSrc [I] handle to the source image list
438 * iSrc [I] source image index
439 * uFlags [I] flags for the copy operation
441 * RETURNS
442 * Success: TRUE
443 * Failure: FALSE
445 * NOTES
446 * Copying from one image list to another is possible. The original
447 * implementation just copies or swaps within one image list.
448 * Could this feature become a bug??? ;-)
451 BOOL WINAPI
452 ImageList_Copy (HIMAGELIST himlDst, INT iDst, HIMAGELIST himlSrc,
453 INT iSrc, UINT uFlags)
455 TRACE("himlDst=%p iDst=%d himlSrc=%p iSrc=%d\n", himlDst, iDst, himlSrc, iSrc);
457 if (!is_valid(himlSrc) || !is_valid(himlDst))
458 return FALSE;
459 if ((iDst < 0) || (iDst >= himlDst->cCurImage))
460 return FALSE;
461 if ((iSrc < 0) || (iSrc >= himlSrc->cCurImage))
462 return FALSE;
464 if (uFlags & ILCF_SWAP) {
465 /* swap */
466 HDC hdcBmp;
467 HBITMAP hbmTempImage, hbmTempMask;
469 hdcBmp = CreateCompatibleDC (0);
471 /* create temporary bitmaps */
472 hbmTempImage = CreateBitmap (himlSrc->cx, himlSrc->cy, 1,
473 himlSrc->uBitsPixel, NULL);
474 hbmTempMask = CreateBitmap (himlSrc->cx, himlSrc->cy, 1,
475 1, NULL);
477 /* copy (and stretch) destination to temporary bitmaps.(save) */
478 /* image */
479 SelectObject (hdcBmp, hbmTempImage);
480 StretchBlt (hdcBmp, 0, 0, himlSrc->cx, himlSrc->cy,
481 himlDst->hdcImage, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
482 SRCCOPY);
483 /* mask */
484 SelectObject (hdcBmp, hbmTempMask);
485 StretchBlt (hdcBmp, 0, 0, himlSrc->cx, himlSrc->cy,
486 himlDst->hdcMask, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
487 SRCCOPY);
489 /* copy (and stretch) source to destination */
490 /* image */
491 StretchBlt (himlDst->hdcImage, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
492 himlSrc->hdcImage, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
493 SRCCOPY);
494 /* mask */
495 StretchBlt (himlDst->hdcMask, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
496 himlSrc->hdcMask, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
497 SRCCOPY);
499 /* copy (without stretching) temporary bitmaps to source (restore) */
500 /* mask */
501 BitBlt (himlSrc->hdcMask, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
502 hdcBmp, 0, 0, SRCCOPY);
504 /* image */
505 BitBlt (himlSrc->hdcImage, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
506 hdcBmp, 0, 0, SRCCOPY);
507 /* delete temporary bitmaps */
508 DeleteObject (hbmTempMask);
509 DeleteObject (hbmTempImage);
510 DeleteDC(hdcBmp);
512 else {
513 /* copy image */
514 StretchBlt (himlDst->hdcImage, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
515 himlSrc->hdcImage, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
516 SRCCOPY);
518 /* copy mask */
519 StretchBlt (himlDst->hdcMask, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
520 himlSrc->hdcMask, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
521 SRCCOPY);
524 return TRUE;
528 /*************************************************************************
529 * ImageList_Create [COMCTL32.@]
531 * Creates a new image list.
533 * PARAMS
534 * cx [I] image height
535 * cy [I] image width
536 * flags [I] creation flags
537 * cInitial [I] initial number of images in the image list
538 * cGrow [I] number of images by which image list grows
540 * RETURNS
541 * Success: Handle to the created image list
542 * Failure: NULL
544 HIMAGELIST WINAPI
545 ImageList_Create (INT cx, INT cy, UINT flags,
546 INT cInitial, INT cGrow)
548 HIMAGELIST himl;
549 INT nCount;
550 HBITMAP hbmTemp;
551 UINT ilc = (flags & 0xFE);
552 static const WORD aBitBlend25[] =
553 {0xAA, 0x00, 0x55, 0x00, 0xAA, 0x00, 0x55, 0x00};
555 static const WORD aBitBlend50[] =
556 {0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA};
558 TRACE("(%d %d 0x%x %d %d)\n", cx, cy, flags, cInitial, cGrow);
560 himl = (HIMAGELIST)Alloc (sizeof(struct _IMAGELIST));
561 if (!himl)
562 return NULL;
564 cGrow = (cGrow < 4) ? 4 : (cGrow + 3) & ~3;
566 himl->magic = IMAGELIST_MAGIC;
567 himl->cx = cx;
568 himl->cy = cy;
569 himl->flags = flags;
570 himl->cMaxImage = cInitial + cGrow;
571 himl->cInitial = cInitial;
572 himl->cGrow = cGrow;
573 himl->clrFg = CLR_DEFAULT;
574 himl->clrBk = CLR_NONE;
576 /* initialize overlay mask indices */
577 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
578 himl->nOvlIdx[nCount] = -1;
580 /* Create Image & Mask DCs */
581 himl->hdcImage = CreateCompatibleDC (0);
582 if (!himl->hdcImage)
583 goto cleanup;
584 if (himl->flags & ILC_MASK){
585 himl->hdcMask = CreateCompatibleDC(0);
586 if (!himl->hdcMask)
587 goto cleanup;
590 /* Default to ILC_COLOR4 if none of the ILC_COLOR* flags are specified */
591 if (ilc == ILC_COLOR)
592 ilc = ILC_COLOR4;
594 if (ilc >= ILC_COLOR4 && ilc <= ILC_COLOR32)
595 himl->uBitsPixel = ilc;
596 else
597 himl->uBitsPixel = (UINT)GetDeviceCaps (himl->hdcImage, BITSPIXEL);
599 if (himl->cMaxImage > 0) {
600 himl->hbmImage = ImageList_CreateImage(himl->hdcImage, himl, cx * himl->cMaxImage, cy);
601 SelectObject(himl->hdcImage, himl->hbmImage);
602 } else
603 himl->hbmImage = 0;
605 if ((himl->cMaxImage > 0) && (himl->flags & ILC_MASK)) {
606 himl->hbmMask =
607 CreateBitmap (himl->cx * himl->cMaxImage, himl->cy,
608 1, 1, NULL);
609 if (himl->hbmMask == 0) {
610 ERR("Error creating mask bitmap!\n");
611 goto cleanup;
613 SelectObject(himl->hdcMask, himl->hbmMask);
615 else
616 himl->hbmMask = 0;
618 /* create blending brushes */
619 hbmTemp = CreateBitmap (8, 8, 1, 1, &aBitBlend25);
620 himl->hbrBlend25 = CreatePatternBrush (hbmTemp);
621 DeleteObject (hbmTemp);
623 hbmTemp = CreateBitmap (8, 8, 1, 1, &aBitBlend50);
624 himl->hbrBlend50 = CreatePatternBrush (hbmTemp);
625 DeleteObject (hbmTemp);
627 TRACE("created imagelist %p\n", himl);
628 return himl;
630 cleanup:
631 if (himl) ImageList_Destroy(himl);
632 return NULL;
636 /*************************************************************************
637 * ImageList_Destroy [COMCTL32.@]
639 * Destroys an image list.
641 * PARAMS
642 * himl [I] handle to image list
644 * RETURNS
645 * Success: TRUE
646 * Failure: FALSE
649 BOOL WINAPI
650 ImageList_Destroy (HIMAGELIST himl)
652 if (!is_valid(himl))
653 return FALSE;
655 /* delete image bitmaps */
656 if (himl->hbmImage)
657 DeleteObject (himl->hbmImage);
658 if (himl->hbmMask)
659 DeleteObject (himl->hbmMask);
661 /* delete image & mask DCs */
662 if (himl->hdcImage)
663 DeleteDC(himl->hdcImage);
664 if (himl->hdcMask)
665 DeleteDC(himl->hdcMask);
667 /* delete blending brushes */
668 if (himl->hbrBlend25)
669 DeleteObject (himl->hbrBlend25);
670 if (himl->hbrBlend50)
671 DeleteObject (himl->hbrBlend50);
673 ZeroMemory(himl, sizeof(*himl));
674 Free (himl);
676 return TRUE;
680 /*************************************************************************
681 * ImageList_DragEnter [COMCTL32.@]
683 * Locks window update and displays the drag image at the given position.
685 * PARAMS
686 * hwndLock [I] handle of the window that owns the drag image.
687 * x [I] X position of the drag image.
688 * y [I] Y position of the drag image.
690 * RETURNS
691 * Success: TRUE
692 * Failure: FALSE
694 * NOTES
695 * The position of the drag image is relative to the window, not
696 * the client area.
699 BOOL WINAPI
700 ImageList_DragEnter (HWND hwndLock, INT x, INT y)
702 TRACE("(hwnd=%p x=%d y=%d)\n", hwndLock, x, y);
704 if (!is_valid(InternalDrag.himl))
705 return FALSE;
707 if (hwndLock)
708 InternalDrag.hwnd = hwndLock;
709 else
710 InternalDrag.hwnd = GetDesktopWindow ();
712 InternalDrag.x = x;
713 InternalDrag.y = y;
715 /* draw the drag image and save the background */
716 if (!ImageList_DragShowNolock(TRUE)) {
717 return FALSE;
720 return TRUE;
724 /*************************************************************************
725 * ImageList_DragLeave [COMCTL32.@]
727 * Unlocks window update and hides the drag image.
729 * PARAMS
730 * hwndLock [I] handle of the window that owns the drag image.
732 * RETURNS
733 * Success: TRUE
734 * Failure: FALSE
737 BOOL WINAPI
738 ImageList_DragLeave (HWND hwndLock)
740 /* As we don't save drag info in the window this can lead to problems if
741 an app does not supply the same window as DragEnter */
742 /* if (hwndLock)
743 InternalDrag.hwnd = hwndLock;
744 else
745 InternalDrag.hwnd = GetDesktopWindow (); */
746 if(!hwndLock)
747 hwndLock = GetDesktopWindow();
748 if(InternalDrag.hwnd != hwndLock)
749 FIXME("DragLeave hWnd != DragEnter hWnd\n");
751 ImageList_DragShowNolock (FALSE);
753 return TRUE;
757 /*************************************************************************
758 * ImageList_InternalDragDraw [Internal]
760 * Draws the drag image.
762 * PARAMS
763 * hdc [I] device context to draw into.
764 * x [I] X position of the drag image.
765 * y [I] Y position of the drag image.
767 * RETURNS
768 * Success: TRUE
769 * Failure: FALSE
771 * NOTES
772 * The position of the drag image is relative to the window, not
773 * the client area.
777 static inline void
778 ImageList_InternalDragDraw (HDC hdc, INT x, INT y)
780 IMAGELISTDRAWPARAMS imldp;
782 ZeroMemory (&imldp, sizeof(imldp));
783 imldp.cbSize = sizeof(imldp);
784 imldp.himl = InternalDrag.himl;
785 imldp.i = 0;
786 imldp.hdcDst = hdc,
787 imldp.x = x;
788 imldp.y = y;
789 imldp.rgbBk = CLR_DEFAULT;
790 imldp.rgbFg = CLR_DEFAULT;
791 imldp.fStyle = ILD_NORMAL;
792 imldp.fState = ILS_ALPHA;
793 imldp.Frame = 128;
795 /* FIXME: instead of using the alpha blending, we should
796 * create a 50% mask, and draw it semitransparantly that way */
797 ImageList_DrawIndirect (&imldp);
800 /*************************************************************************
801 * ImageList_DragMove [COMCTL32.@]
803 * Moves the drag image.
805 * PARAMS
806 * x [I] X position of the drag image.
807 * y [I] Y position of the drag image.
809 * RETURNS
810 * Success: TRUE
811 * Failure: FALSE
813 * NOTES
814 * The position of the drag image is relative to the window, not
815 * the client area.
817 * BUGS
818 * The drag image should be drawn semitransparent.
821 BOOL WINAPI
822 ImageList_DragMove (INT x, INT y)
824 TRACE("(x=%d y=%d)\n", x, y);
826 if (!is_valid(InternalDrag.himl))
827 return FALSE;
829 /* draw/update the drag image */
830 if (InternalDrag.bShow) {
831 HDC hdcDrag;
832 HDC hdcOffScreen;
833 HDC hdcBg;
834 HBITMAP hbmOffScreen;
835 INT origNewX, origNewY;
836 INT origOldX, origOldY;
837 INT origRegX, origRegY;
838 INT sizeRegX, sizeRegY;
841 /* calculate the update region */
842 origNewX = x - InternalDrag.dxHotspot;
843 origNewY = y - InternalDrag.dyHotspot;
844 origOldX = InternalDrag.x - InternalDrag.dxHotspot;
845 origOldY = InternalDrag.y - InternalDrag.dyHotspot;
846 origRegX = min(origNewX, origOldX);
847 origRegY = min(origNewY, origOldY);
848 sizeRegX = InternalDrag.himl->cx + abs(x - InternalDrag.x);
849 sizeRegY = InternalDrag.himl->cy + abs(y - InternalDrag.y);
851 hdcDrag = GetDCEx(InternalDrag.hwnd, 0,
852 DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
853 hdcOffScreen = CreateCompatibleDC(hdcDrag);
854 hdcBg = CreateCompatibleDC(hdcDrag);
856 hbmOffScreen = CreateCompatibleBitmap(hdcDrag, sizeRegX, sizeRegY);
857 SelectObject(hdcOffScreen, hbmOffScreen);
858 SelectObject(hdcBg, InternalDrag.hbmBg);
860 /* get the actual background of the update region */
861 BitBlt(hdcOffScreen, 0, 0, sizeRegX, sizeRegY, hdcDrag,
862 origRegX, origRegY, SRCCOPY);
863 /* erase the old image */
864 BitBlt(hdcOffScreen, origOldX - origRegX, origOldY - origRegY,
865 InternalDrag.himl->cx, InternalDrag.himl->cy, hdcBg, 0, 0,
866 SRCCOPY);
867 /* save the background */
868 BitBlt(hdcBg, 0, 0, InternalDrag.himl->cx, InternalDrag.himl->cy,
869 hdcOffScreen, origNewX - origRegX, origNewY - origRegY, SRCCOPY);
870 /* draw the image */
871 ImageList_InternalDragDraw(hdcOffScreen, origNewX - origRegX,
872 origNewY - origRegY);
873 /* draw the update region to the screen */
874 BitBlt(hdcDrag, origRegX, origRegY, sizeRegX, sizeRegY,
875 hdcOffScreen, 0, 0, SRCCOPY);
877 DeleteDC(hdcBg);
878 DeleteDC(hdcOffScreen);
879 DeleteObject(hbmOffScreen);
880 ReleaseDC(InternalDrag.hwnd, hdcDrag);
883 /* update the image position */
884 InternalDrag.x = x;
885 InternalDrag.y = y;
887 return TRUE;
891 /*************************************************************************
892 * ImageList_DragShowNolock [COMCTL32.@]
894 * Shows or hides the drag image.
896 * PARAMS
897 * bShow [I] TRUE shows the drag image, FALSE hides it.
899 * RETURNS
900 * Success: TRUE
901 * Failure: FALSE
903 * BUGS
904 * The drag image should be drawn semitransparent.
907 BOOL WINAPI
908 ImageList_DragShowNolock (BOOL bShow)
910 HDC hdcDrag;
911 HDC hdcBg;
912 INT x, y;
914 if (!is_valid(InternalDrag.himl))
915 return FALSE;
917 TRACE("bShow=0x%X!\n", bShow);
919 /* DragImage is already visible/hidden */
920 if ((InternalDrag.bShow && bShow) || (!InternalDrag.bShow && !bShow)) {
921 return FALSE;
924 /* position of the origin of the DragImage */
925 x = InternalDrag.x - InternalDrag.dxHotspot;
926 y = InternalDrag.y - InternalDrag.dyHotspot;
928 hdcDrag = GetDCEx (InternalDrag.hwnd, 0,
929 DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
930 if (!hdcDrag) {
931 return FALSE;
934 hdcBg = CreateCompatibleDC(hdcDrag);
935 if (!InternalDrag.hbmBg) {
936 InternalDrag.hbmBg = CreateCompatibleBitmap(hdcDrag,
937 InternalDrag.himl->cx, InternalDrag.himl->cy);
939 SelectObject(hdcBg, InternalDrag.hbmBg);
941 if (bShow) {
942 /* save the background */
943 BitBlt(hdcBg, 0, 0, InternalDrag.himl->cx, InternalDrag.himl->cy,
944 hdcDrag, x, y, SRCCOPY);
945 /* show the image */
946 ImageList_InternalDragDraw(hdcDrag, x, y);
947 } else {
948 /* hide the image */
949 BitBlt(hdcDrag, x, y, InternalDrag.himl->cx, InternalDrag.himl->cy,
950 hdcBg, 0, 0, SRCCOPY);
953 InternalDrag.bShow = !InternalDrag.bShow;
955 DeleteDC(hdcBg);
956 ReleaseDC (InternalDrag.hwnd, hdcDrag);
957 return TRUE;
961 /*************************************************************************
962 * ImageList_Draw [COMCTL32.@]
964 * Draws an image.
966 * PARAMS
967 * himl [I] handle to image list
968 * i [I] image index
969 * hdc [I] handle to device context
970 * x [I] x position
971 * y [I] y position
972 * fStyle [I] drawing flags
974 * RETURNS
975 * Success: TRUE
976 * Failure: FALSE
978 * SEE
979 * ImageList_DrawEx.
982 BOOL WINAPI
983 ImageList_Draw (HIMAGELIST himl, INT i, HDC hdc, INT x, INT y, UINT fStyle)
985 return ImageList_DrawEx (himl, i, hdc, x, y, 0, 0,
986 CLR_DEFAULT, CLR_DEFAULT, fStyle);
990 /*************************************************************************
991 * ImageList_DrawEx [COMCTL32.@]
993 * Draws an image and allows to use extended drawing features.
995 * PARAMS
996 * himl [I] handle to image list
997 * i [I] image index
998 * hdc [I] handle to device context
999 * x [I] X position
1000 * y [I] Y position
1001 * dx [I] X offset
1002 * dy [I] Y offset
1003 * rgbBk [I] background color
1004 * rgbFg [I] foreground color
1005 * fStyle [I] drawing flags
1007 * RETURNS
1008 * Success: TRUE
1009 * Failure: FALSE
1011 * NOTES
1012 * Calls ImageList_DrawIndirect.
1014 * SEE
1015 * ImageList_DrawIndirect.
1018 BOOL WINAPI
1019 ImageList_DrawEx (HIMAGELIST himl, INT i, HDC hdc, INT x, INT y,
1020 INT dx, INT dy, COLORREF rgbBk, COLORREF rgbFg,
1021 UINT fStyle)
1023 IMAGELISTDRAWPARAMS imldp;
1025 ZeroMemory (&imldp, sizeof(imldp));
1026 imldp.cbSize = sizeof(imldp);
1027 imldp.himl = himl;
1028 imldp.i = i;
1029 imldp.hdcDst = hdc,
1030 imldp.x = x;
1031 imldp.y = y;
1032 imldp.cx = dx;
1033 imldp.cy = dy;
1034 imldp.rgbBk = rgbBk;
1035 imldp.rgbFg = rgbFg;
1036 imldp.fStyle = fStyle;
1038 return ImageList_DrawIndirect (&imldp);
1042 /*************************************************************************
1043 * ImageList_DrawIndirect [COMCTL32.@]
1045 * Draws an image using various parameters specified in pimldp.
1047 * PARAMS
1048 * pimldp [I] pointer to IMAGELISTDRAWPARAMS structure.
1050 * RETURNS
1051 * Success: TRUE
1052 * Failure: FALSE
1055 BOOL WINAPI
1056 ImageList_DrawIndirect (IMAGELISTDRAWPARAMS *pimldp)
1058 INT cx, cy, lx, ly, nOvlIdx;
1059 DWORD fState, dwRop;
1060 UINT fStyle;
1061 COLORREF oldImageBk, oldImageFg;
1062 HDC hImageDC, hImageListDC, hMaskListDC;
1063 HBITMAP hImageBmp, hOldImageBmp, hBlendMaskBmp;
1064 BOOL bIsTransparent, bBlend, bResult = FALSE, bMask;
1065 HIMAGELIST himl;
1067 if (!pimldp || !(himl = pimldp->himl)) return FALSE;
1068 if (!is_valid(himl)) return FALSE;
1069 if ((pimldp->i < 0) || (pimldp->i >= himl->cCurImage)) return FALSE;
1071 lx = himl->cx * pimldp->i + pimldp->xBitmap;
1072 ly = pimldp->yBitmap;
1074 fState = pimldp->cbSize < sizeof(IMAGELISTDRAWPARAMS) ? ILS_NORMAL : pimldp->fState;
1075 fStyle = pimldp->fStyle & ~ILD_OVERLAYMASK;
1076 cx = (pimldp->cx == 0) ? himl->cx : pimldp->cx;
1077 cy = (pimldp->cy == 0) ? himl->cy : pimldp->cy;
1079 bIsTransparent = (fStyle & ILD_TRANSPARENT);
1080 if( pimldp->rgbBk == CLR_NONE )
1081 bIsTransparent = TRUE;
1082 if( ( pimldp->rgbBk == CLR_DEFAULT ) && ( himl->clrBk == CLR_NONE ) )
1083 bIsTransparent = TRUE;
1084 bMask = (himl->flags & ILC_MASK) && (fStyle & ILD_MASK) ;
1085 bBlend = (fStyle & (ILD_BLEND25 | ILD_BLEND50) ) && !bMask;
1087 TRACE("himl(0x%lx) hbmMask(%p) iImage(%d) x(%d) y(%d) cx(%d) cy(%d)\n",
1088 (DWORD)himl, himl->hbmMask, pimldp->i, pimldp->x, pimldp->y, cx, cy);
1090 /* we will use these DCs to access the images and masks in the ImageList */
1091 hImageListDC = himl->hdcImage;
1092 hMaskListDC = himl->hdcMask;
1094 /* these will accumulate the image and mask for the image we're drawing */
1095 hImageDC = CreateCompatibleDC( pimldp->hdcDst );
1096 hImageBmp = CreateCompatibleBitmap( pimldp->hdcDst, cx, cy );
1097 hBlendMaskBmp = bBlend ? CreateBitmap(cx, cy, 1, 1, NULL) : 0;
1099 /* Create a compatible DC. */
1100 if (!hImageListDC || !hImageDC || !hImageBmp ||
1101 (bBlend && !hBlendMaskBmp) || (himl->hbmMask && !hMaskListDC))
1102 goto cleanup;
1104 hOldImageBmp = SelectObject(hImageDC, hImageBmp);
1107 * To obtain a transparent look, background color should be set
1108 * to white and foreground color to black when blting the
1109 * monochrome mask.
1111 oldImageFg = SetTextColor( hImageDC, RGB( 0, 0, 0 ) );
1112 oldImageBk = SetBkColor( hImageDC, RGB( 0xff, 0xff, 0xff ) );
1115 * Draw the initial image
1117 if( bMask ) {
1118 if (himl->hbmMask) {
1119 HBRUSH hOldBrush;
1120 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (GetTextColor(pimldp->hdcDst)));
1121 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1122 BitBlt(hImageDC, 0, 0, cx, cy, hMaskListDC, lx, ly, SRCPAINT);
1123 DeleteObject (SelectObject (hImageDC, hOldBrush));
1124 if( bIsTransparent )
1126 BitBlt ( pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, SRCAND);
1127 bResult = TRUE;
1128 goto end;
1130 } else {
1131 HBRUSH hOldBrush = SelectObject (hImageDC, GetStockObject(BLACK_BRUSH));
1132 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY);
1133 SelectObject(hImageDC, hOldBrush);
1135 } else {
1136 /* blend the image with the needed solid background */
1137 COLORREF colour = RGB(0,0,0);
1138 HBRUSH hOldBrush;
1140 if( !bIsTransparent )
1142 colour = pimldp->rgbBk;
1143 if( colour == CLR_DEFAULT )
1144 colour = himl->clrBk;
1145 if( colour == CLR_NONE )
1146 colour = GetBkColor(pimldp->hdcDst);
1149 hOldBrush = SelectObject (hImageDC, CreateSolidBrush (colour));
1150 PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
1151 BitBlt( hImageDC, 0, 0, cx, cy, hMaskListDC, lx, ly, SRCAND );
1152 BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, lx, ly, SRCPAINT );
1153 DeleteObject (SelectObject (hImageDC, hOldBrush));
1156 /* Time for blending, if required */
1157 if (bBlend) {
1158 HBRUSH hBlendBrush, hOldBrush;
1159 COLORREF clrBlend = pimldp->rgbFg;
1160 HDC hBlendMaskDC = hImageListDC;
1161 HBITMAP hOldBitmap;
1163 /* Create the blend Mask */
1164 hOldBitmap = SelectObject(hBlendMaskDC, hBlendMaskBmp);
1165 hBlendBrush = fStyle & ILD_BLEND50 ? himl->hbrBlend50 : himl->hbrBlend25;
1166 hOldBrush = (HBRUSH) SelectObject(hBlendMaskDC, hBlendBrush);
1167 PatBlt(hBlendMaskDC, 0, 0, cx, cy, PATCOPY);
1168 SelectObject(hBlendMaskDC, hOldBrush);
1170 /* Modify the blend mask if an Image Mask exist */
1171 if(himl->hbmMask) {
1172 BitBlt(hBlendMaskDC, 0, 0, cx, cy, hMaskListDC, lx, ly, 0x220326); /* NOTSRCAND */
1173 BitBlt(hBlendMaskDC, 0, 0, cx, cy, hBlendMaskDC, 0, 0, NOTSRCCOPY);
1176 /* now apply blend to the current image given the BlendMask */
1177 if (clrBlend == CLR_DEFAULT) clrBlend = GetSysColor (COLOR_HIGHLIGHT);
1178 else if (clrBlend == CLR_NONE) clrBlend = GetTextColor (pimldp->hdcDst);
1179 hOldBrush = (HBRUSH) SelectObject (hImageDC, CreateSolidBrush(clrBlend));
1180 BitBlt (hImageDC, 0, 0, cx, cy, hBlendMaskDC, 0, 0, 0xB8074A); /* PSDPxax */
1181 DeleteObject(SelectObject(hImageDC, hOldBrush));
1182 SelectObject(hBlendMaskDC, hOldBitmap);
1185 /* Now do the overlay image, if any */
1186 nOvlIdx = (pimldp->fStyle & ILD_OVERLAYMASK) >> 8;
1187 if ( (nOvlIdx >= 1) && (nOvlIdx <= MAX_OVERLAYIMAGE)) {
1188 nOvlIdx = himl->nOvlIdx[nOvlIdx - 1];
1189 if ((nOvlIdx >= 0) && (nOvlIdx < himl->cCurImage)) {
1190 const INT ox = himl->cx * nOvlIdx + pimldp->xBitmap;
1191 if (himl->hbmMask && !(fStyle & ILD_IMAGE))
1192 BitBlt (hImageDC, 0, 0, cx, cy, hMaskListDC, ox, ly, SRCAND);
1193 BitBlt (hImageDC, 0, 0, cx, cy, hImageListDC, ox, ly, SRCPAINT);
1197 if (fState & ILS_SATURATE) FIXME("ILS_SATURATE: unimplemented!\n");
1198 if (fState & ILS_GLOW) FIXME("ILS_GLOW: unimplemented!\n");
1199 if (fState & ILS_SHADOW) FIXME("ILS_SHADOW: unimplemented!\n");
1200 if (fState & ILS_ALPHA) FIXME("ILS_ALPHA: unimplemented!\n");
1202 if (fStyle & ILD_PRESERVEALPHA) FIXME("ILD_PRESERVEALPHA: unimplemented!\n");
1203 if (fStyle & ILD_SCALE) FIXME("ILD_SCALE: unimplemented!\n");
1204 if (fStyle & ILD_DPISCALE) FIXME("ILD_DPISCALE: unimplemented!\n");
1206 /* now copy the image to the screen */
1207 dwRop = SRCCOPY;
1208 if (himl->hbmMask && bIsTransparent ) {
1209 COLORREF oldDstFg = SetTextColor(pimldp->hdcDst, RGB( 0, 0, 0 ) );
1210 COLORREF oldDstBk = SetBkColor(pimldp->hdcDst, RGB( 0xff, 0xff, 0xff ));
1211 BitBlt (pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hMaskListDC, lx, ly, SRCAND);
1212 SetBkColor(pimldp->hdcDst, oldDstBk);
1213 SetTextColor(pimldp->hdcDst, oldDstFg);
1214 dwRop = SRCPAINT;
1216 if (fStyle & ILD_ROP) dwRop = pimldp->dwRop;
1217 BitBlt (pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, dwRop);
1219 bResult = TRUE;
1220 end:
1221 /* cleanup the mess */
1222 SetBkColor(hImageDC, oldImageBk);
1223 SetTextColor(hImageDC, oldImageFg);
1224 SelectObject(hImageDC, hOldImageBmp);
1225 cleanup:
1226 DeleteObject(hBlendMaskBmp);
1227 DeleteObject(hImageBmp);
1228 DeleteDC(hImageDC);
1230 return bResult;
1234 /*************************************************************************
1235 * ImageList_Duplicate [COMCTL32.@]
1237 * Duplicates an image list.
1239 * PARAMS
1240 * himlSrc [I] source image list handle
1242 * RETURNS
1243 * Success: Handle of duplicated image list.
1244 * Failure: NULL
1247 HIMAGELIST WINAPI
1248 ImageList_Duplicate (HIMAGELIST himlSrc)
1250 HIMAGELIST himlDst;
1252 if (!is_valid(himlSrc)) {
1253 ERR("Invalid image list handle!\n");
1254 return NULL;
1257 himlDst = ImageList_Create (himlSrc->cx, himlSrc->cy, himlSrc->flags,
1258 himlSrc->cInitial, himlSrc->cGrow);
1260 if (himlDst)
1262 BitBlt (himlDst->hdcImage, 0, 0, himlSrc->cCurImage * himlSrc->cx, himlSrc->cy,
1263 himlSrc->hdcImage, 0, 0, SRCCOPY);
1265 if (himlDst->hbmMask)
1266 BitBlt (himlDst->hdcMask, 0, 0, himlSrc->cCurImage * himlSrc->cx, himlSrc->cy,
1267 himlSrc->hdcMask, 0, 0, SRCCOPY);
1269 himlDst->cCurImage = himlSrc->cCurImage;
1270 himlDst->cMaxImage = himlSrc->cMaxImage;
1272 return himlDst;
1276 /*************************************************************************
1277 * ImageList_EndDrag [COMCTL32.@]
1279 * Finishes a drag operation.
1281 * PARAMS
1282 * no Parameters
1284 * RETURNS
1285 * Success: TRUE
1286 * Failure: FALSE
1289 VOID WINAPI
1290 ImageList_EndDrag (void)
1292 /* cleanup the InternalDrag struct */
1293 InternalDrag.hwnd = 0;
1294 ImageList_Destroy (InternalDrag.himl);
1295 InternalDrag.himl = 0;
1296 InternalDrag.x= 0;
1297 InternalDrag.y= 0;
1298 InternalDrag.dxHotspot = 0;
1299 InternalDrag.dyHotspot = 0;
1300 InternalDrag.bShow = FALSE;
1301 DeleteObject(InternalDrag.hbmBg);
1302 InternalDrag.hbmBg = 0;
1306 /*************************************************************************
1307 * ImageList_GetBkColor [COMCTL32.@]
1309 * Returns the background color of an image list.
1311 * PARAMS
1312 * himl [I] Image list handle.
1314 * RETURNS
1315 * Success: background color
1316 * Failure: CLR_NONE
1319 COLORREF WINAPI
1320 ImageList_GetBkColor (HIMAGELIST himl)
1322 return himl ? himl->clrBk : CLR_NONE;
1326 /*************************************************************************
1327 * ImageList_GetDragImage [COMCTL32.@]
1329 * Returns the handle to the internal drag image list.
1331 * PARAMS
1332 * ppt [O] Pointer to the drag position. Can be NULL.
1333 * pptHotspot [O] Pointer to the position of the hot spot. Can be NULL.
1335 * RETURNS
1336 * Success: Handle of the drag image list.
1337 * Failure: NULL.
1340 HIMAGELIST WINAPI
1341 ImageList_GetDragImage (POINT *ppt, POINT *pptHotspot)
1343 if (is_valid(InternalDrag.himl)) {
1344 if (ppt) {
1345 ppt->x = InternalDrag.x;
1346 ppt->y = InternalDrag.y;
1348 if (pptHotspot) {
1349 pptHotspot->x = InternalDrag.dxHotspot;
1350 pptHotspot->y = InternalDrag.dyHotspot;
1352 return (InternalDrag.himl);
1355 return NULL;
1359 /*************************************************************************
1360 * ImageList_GetFlags [COMCTL32.@]
1362 * Gets the flags of the specified image list.
1364 * PARAMS
1365 * himl [I] Handle to image list
1367 * RETURNS
1368 * Image list flags.
1370 * BUGS
1371 * Stub.
1374 DWORD WINAPI
1375 ImageList_GetFlags(HIMAGELIST himl)
1377 FIXME("(%p):empty stub\n", himl);
1378 return 0;
1382 /*************************************************************************
1383 * ImageList_GetIcon [COMCTL32.@]
1385 * Creates an icon from a masked image of an image list.
1387 * PARAMS
1388 * himl [I] handle to image list
1389 * i [I] image index
1390 * flags [I] drawing style flags
1392 * RETURNS
1393 * Success: icon handle
1394 * Failure: NULL
1397 HICON WINAPI
1398 ImageList_GetIcon (HIMAGELIST himl, INT i, UINT fStyle)
1400 ICONINFO ii;
1401 HICON hIcon;
1402 HBITMAP hOldDstBitmap;
1403 HDC hdcDst;
1405 TRACE("%p %d %d\n", himl, i, fStyle);
1406 if (!is_valid(himl) || (i < 0) || (i >= himl->cCurImage)) return NULL;
1408 hdcDst = CreateCompatibleDC(0);
1410 ii.fIcon = TRUE;
1411 ii.xHotspot = 0;
1412 ii.yHotspot = 0;
1414 /* draw mask*/
1415 ii.hbmMask = CreateCompatibleBitmap (hdcDst, himl->cx, himl->cy);
1416 hOldDstBitmap = SelectObject (hdcDst, ii.hbmMask);
1417 if (himl->hbmMask) {
1418 BitBlt (hdcDst, 0, 0, himl->cx, himl->cy,
1419 himl->hdcMask, i * himl->cx, 0, SRCCOPY);
1421 else
1422 PatBlt (hdcDst, 0, 0, himl->cx, himl->cy, BLACKNESS);
1424 /* draw image*/
1425 ii.hbmColor = CreateCompatibleBitmap (himl->hdcImage, himl->cx, himl->cy);
1426 SelectObject (hdcDst, ii.hbmColor);
1427 BitBlt (hdcDst, 0, 0, himl->cx, himl->cy,
1428 himl->hdcImage, i * himl->cx, 0, SRCCOPY);
1431 * CreateIconIndirect requires us to deselect the bitmaps from
1432 * the DCs before calling
1434 SelectObject(hdcDst, hOldDstBitmap);
1436 hIcon = CreateIconIndirect (&ii);
1438 DeleteObject (ii.hbmMask);
1439 DeleteObject (ii.hbmColor);
1440 DeleteDC (hdcDst);
1442 return hIcon;
1446 /*************************************************************************
1447 * ImageList_GetIconSize [COMCTL32.@]
1449 * Retrieves the size of an image in an image list.
1451 * PARAMS
1452 * himl [I] handle to image list
1453 * cx [O] pointer to the image width.
1454 * cy [O] pointer to the image height.
1456 * RETURNS
1457 * Success: TRUE
1458 * Failure: FALSE
1460 * NOTES
1461 * All images in an image list have the same size.
1464 BOOL WINAPI
1465 ImageList_GetIconSize (HIMAGELIST himl, INT *cx, INT *cy)
1467 if (!is_valid(himl))
1468 return FALSE;
1469 if ((himl->cx <= 0) || (himl->cy <= 0))
1470 return FALSE;
1472 if (cx)
1473 *cx = himl->cx;
1474 if (cy)
1475 *cy = himl->cy;
1477 return TRUE;
1481 /*************************************************************************
1482 * ImageList_GetImageCount [COMCTL32.@]
1484 * Returns the number of images in an image list.
1486 * PARAMS
1487 * himl [I] handle to image list
1489 * RETURNS
1490 * Success: Number of images.
1491 * Failure: 0
1494 INT WINAPI
1495 ImageList_GetImageCount (HIMAGELIST himl)
1497 if (!is_valid(himl))
1498 return 0;
1500 return himl->cCurImage;
1504 /*************************************************************************
1505 * ImageList_GetImageInfo [COMCTL32.@]
1507 * Returns information about an image in an image list.
1509 * PARAMS
1510 * himl [I] handle to image list
1511 * i [I] image index
1512 * pImageInfo [O] pointer to the image information
1514 * RETURNS
1515 * Success: TRUE
1516 * Failure: FALSE
1519 BOOL WINAPI
1520 ImageList_GetImageInfo (HIMAGELIST himl, INT i, IMAGEINFO *pImageInfo)
1522 if (!is_valid(himl) || (pImageInfo == NULL))
1523 return FALSE;
1524 if ((i < 0) || (i >= himl->cCurImage))
1525 return FALSE;
1527 pImageInfo->hbmImage = himl->hbmImage;
1528 pImageInfo->hbmMask = himl->hbmMask;
1530 pImageInfo->rcImage.top = 0;
1531 pImageInfo->rcImage.bottom = himl->cy;
1532 pImageInfo->rcImage.left = i * himl->cx;
1533 pImageInfo->rcImage.right = (i+1) * himl->cx;
1535 return TRUE;
1539 /*************************************************************************
1540 * ImageList_GetImageRect [COMCTL32.@]
1542 * Retrieves the rectangle of the specified image in an image list.
1544 * PARAMS
1545 * himl [I] handle to image list
1546 * i [I] image index
1547 * lpRect [O] pointer to the image rectangle
1549 * RETURNS
1550 * Success: TRUE
1551 * Failure: FALSE
1553 * NOTES
1554 * This is an UNDOCUMENTED function!!!
1557 BOOL WINAPI
1558 ImageList_GetImageRect (HIMAGELIST himl, INT i, LPRECT lpRect)
1560 if (!is_valid(himl) || (lpRect == NULL))
1561 return FALSE;
1562 if ((i < 0) || (i >= himl->cCurImage))
1563 return FALSE;
1565 lpRect->left = i * himl->cx;
1566 lpRect->top = 0;
1567 lpRect->right = lpRect->left + himl->cx;
1568 lpRect->bottom = himl->cy;
1570 return TRUE;
1574 /*************************************************************************
1575 * ImageList_LoadImage [COMCTL32.@]
1576 * ImageList_LoadImageA [COMCTL32.@]
1578 * Creates an image list from a bitmap, icon or cursor.
1580 * PARAMS
1581 * hi [I] instance handle
1582 * lpbmp [I] name or id of the image
1583 * cx [I] width of each image
1584 * cGrow [I] number of images to expand
1585 * clrMask [I] mask color
1586 * uType [I] type of image to load
1587 * uFlags [I] loading flags
1589 * RETURNS
1590 * Success: handle to the loaded image list
1591 * Failure: NULL
1593 * SEE
1594 * LoadImage ()
1597 HIMAGELIST WINAPI
1598 ImageList_LoadImageA (HINSTANCE hi, LPCSTR lpbmp, INT cx, INT cGrow,
1599 COLORREF clrMask, UINT uType, UINT uFlags)
1601 HIMAGELIST himl = NULL;
1602 HANDLE handle;
1603 INT nImageCount;
1605 handle = LoadImageA (hi, lpbmp, uType, 0, 0, uFlags);
1606 if (!handle) {
1607 ERR("Error loading image!\n");
1608 return NULL;
1611 if (uType == IMAGE_BITMAP) {
1612 BITMAP bmp;
1613 GetObjectA (handle, sizeof(BITMAP), &bmp);
1615 /* To match windows behavior, if cx is set to zero and
1616 the flag DI_DEFAULTSIZE is specified, cx becomes the
1617 system metric value for icons. If the flag is not specified
1618 the function sets the size to the height of the bitmap */
1619 if (cx == 0)
1621 if (uFlags & DI_DEFAULTSIZE)
1622 cx = GetSystemMetrics (SM_CXICON);
1623 else
1624 cx = bmp.bmHeight;
1627 nImageCount = bmp.bmWidth / cx;
1629 himl = ImageList_Create (cx, bmp.bmHeight, ILC_MASK | ILC_COLOR,
1630 nImageCount, cGrow);
1631 if (!himl) {
1632 DeleteObject (handle);
1633 return NULL;
1635 ImageList_AddMasked (himl, (HBITMAP)handle, clrMask);
1637 else if ((uType == IMAGE_ICON) || (uType == IMAGE_CURSOR)) {
1638 ICONINFO ii;
1639 BITMAP bmp;
1641 GetIconInfo (handle, &ii);
1642 GetObjectA (ii.hbmColor, sizeof(BITMAP), (LPVOID)&bmp);
1643 himl = ImageList_Create (bmp.bmWidth, bmp.bmHeight,
1644 ILC_MASK | ILC_COLOR, 1, cGrow);
1645 if (!himl) {
1646 DeleteObject (ii.hbmColor);
1647 DeleteObject (ii.hbmMask);
1648 DeleteObject (handle);
1649 return NULL;
1651 ImageList_Add (himl, ii.hbmColor, ii.hbmMask);
1652 DeleteObject (ii.hbmColor);
1653 DeleteObject (ii.hbmMask);
1656 DeleteObject (handle);
1658 return himl;
1662 /*************************************************************************
1663 * ImageList_LoadImageW [COMCTL32.@]
1665 * Creates an image list from a bitmap, icon or cursor.
1667 * PARAMS
1668 * hi [I] instance handle
1669 * lpbmp [I] name or id of the image
1670 * cx [I] width of each image
1671 * cGrow [I] number of images to expand
1672 * clrMask [I] mask color
1673 * uType [I] type of image to load
1674 * uFlags [I] loading flags
1676 * RETURNS
1677 * Success: handle to the loaded image list
1678 * Failure: NULL
1680 * SEE
1681 * LoadImage ()
1684 HIMAGELIST WINAPI
1685 ImageList_LoadImageW (HINSTANCE hi, LPCWSTR lpbmp, INT cx, INT cGrow,
1686 COLORREF clrMask, UINT uType, UINT uFlags)
1688 HIMAGELIST himl = NULL;
1689 HANDLE handle;
1690 INT nImageCount;
1692 handle = LoadImageW (hi, lpbmp, uType, 0, 0, uFlags);
1693 if (!handle) {
1694 ERR("Error loading image!\n");
1695 return NULL;
1698 if (uType == IMAGE_BITMAP) {
1699 BITMAP bmp;
1700 GetObjectW (handle, sizeof(BITMAP), &bmp);
1702 /* To match windows behavior, if cx is set to zero and
1703 the flag DI_DEFAULTSIZE is specified, cx becomes the
1704 system metric value for icons. If the flag is not specified
1705 the function sets the size to the height of the bitmap */
1706 if (cx == 0)
1708 if (uFlags & DI_DEFAULTSIZE)
1709 cx = GetSystemMetrics (SM_CXICON);
1710 else
1711 cx = bmp.bmHeight;
1714 nImageCount = bmp.bmWidth / cx;
1716 himl = ImageList_Create (cx, bmp.bmHeight, ILC_MASK | ILC_COLOR,
1717 nImageCount, cGrow);
1718 if (!himl) {
1719 DeleteObject (handle);
1720 return NULL;
1722 ImageList_AddMasked (himl, (HBITMAP)handle, clrMask);
1724 else if ((uType == IMAGE_ICON) || (uType == IMAGE_CURSOR)) {
1725 ICONINFO ii;
1726 BITMAP bmp;
1728 GetIconInfo (handle, &ii);
1729 GetObjectW (ii.hbmMask, sizeof(BITMAP), (LPVOID)&bmp);
1730 himl = ImageList_Create (bmp.bmWidth, bmp.bmHeight,
1731 ILC_MASK | ILC_COLOR, 1, cGrow);
1732 if (!himl) {
1733 DeleteObject (ii.hbmColor);
1734 DeleteObject (ii.hbmMask);
1735 DeleteObject (handle);
1736 return NULL;
1738 ImageList_Add (himl, ii.hbmColor, ii.hbmMask);
1739 DeleteObject (ii.hbmColor);
1740 DeleteObject (ii.hbmMask);
1743 DeleteObject (handle);
1745 return himl;
1749 /*************************************************************************
1750 * ImageList_Merge [COMCTL32.@]
1752 * Create an image list containing a merged image from two image lists.
1754 * PARAMS
1755 * himl1 [I] handle to first image list
1756 * i1 [I] first image index
1757 * himl2 [I] handle to second image list
1758 * i2 [I] second image index
1759 * dx [I] X offset of the second image relative to the first.
1760 * dy [I] Y offset of the second image relative to the first.
1762 * RETURNS
1763 * Success: The newly created image list. It contains a single image
1764 * consisting of the second image merged with the first.
1765 * Failure: NULL, if either himl1 or himl2 are invalid.
1767 * NOTES
1768 * - The returned image list should be deleted by the caller using
1769 * ImageList_Destroy() when it is no longer required.
1770 * - If either i1 or i2 are not valid image indices they will be treated
1771 * as a blank image.
1773 HIMAGELIST WINAPI
1774 ImageList_Merge (HIMAGELIST himl1, INT i1, HIMAGELIST himl2, INT i2,
1775 INT dx, INT dy)
1777 HIMAGELIST himlDst = NULL;
1778 INT cxDst, cyDst;
1779 INT xOff1, yOff1, xOff2, yOff2;
1780 INT nX1, nX2;
1782 TRACE("(himl1=%p i1=%d himl2=%p i2=%d dx=%d dy=%d)\n", himl1, i1, himl2,
1783 i2, dx, dy);
1785 if (!is_valid(himl1) || !is_valid(himl2))
1786 return NULL;
1788 if (dx > 0) {
1789 cxDst = max (himl1->cx, dx + himl2->cx);
1790 xOff1 = 0;
1791 xOff2 = dx;
1793 else if (dx < 0) {
1794 cxDst = max (himl2->cx, himl1->cx - dx);
1795 xOff1 = -dx;
1796 xOff2 = 0;
1798 else {
1799 cxDst = max (himl1->cx, himl2->cx);
1800 xOff1 = 0;
1801 xOff2 = 0;
1804 if (dy > 0) {
1805 cyDst = max (himl1->cy, dy + himl2->cy);
1806 yOff1 = 0;
1807 yOff2 = dy;
1809 else if (dy < 0) {
1810 cyDst = max (himl2->cy, himl1->cy - dy);
1811 yOff1 = -dy;
1812 yOff2 = 0;
1814 else {
1815 cyDst = max (himl1->cy, himl2->cy);
1816 yOff1 = 0;
1817 yOff2 = 0;
1820 himlDst = ImageList_Create (cxDst, cyDst, ILC_MASK | ILC_COLOR, 1, 1);
1822 if (himlDst)
1824 nX1 = i1 * himl1->cx;
1825 nX2 = i2 * himl2->cx;
1827 /* copy image */
1828 BitBlt (himlDst->hdcImage, 0, 0, cxDst, cyDst, himl1->hdcImage, 0, 0, BLACKNESS);
1829 if (i1 >= 0 && i1 < himl1->cCurImage)
1830 BitBlt (himlDst->hdcImage, xOff1, yOff1, himl1->cx, himl1->cy, himl1->hdcImage, nX1, 0, SRCCOPY);
1831 if (i2 >= 0 && i2 < himl2->cCurImage)
1833 BitBlt (himlDst->hdcImage, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcMask , nX2, 0, SRCAND);
1834 BitBlt (himlDst->hdcImage, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcImage, nX2, 0, SRCPAINT);
1837 /* copy mask */
1838 BitBlt (himlDst->hdcMask, 0, 0, cxDst, cyDst, himl1->hdcMask, 0, 0, WHITENESS);
1839 if (i1 >= 0 && i1 < himl1->cCurImage)
1840 BitBlt (himlDst->hdcMask, xOff1, yOff1, himl1->cx, himl1->cy, himl1->hdcMask, nX1, 0, SRCCOPY);
1841 if (i2 >= 0 && i2 < himl2->cCurImage)
1842 BitBlt (himlDst->hdcMask, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcMask, nX2, 0, SRCAND);
1844 himlDst->cCurImage = 1;
1847 return himlDst;
1851 /* helper for _read_bitmap currently unused */
1852 #if 0
1853 static int may_use_dibsection(HDC hdc) {
1854 int bitspixel = GetDeviceCaps(hdc,BITSPIXEL)*GetDeviceCaps(hdc,PLANES);
1855 if (bitspixel>8)
1856 return TRUE;
1857 if (bitspixel<=4)
1858 return FALSE;
1859 return GetDeviceCaps(hdc,CAPS1) & C1_DIBENGINE;
1861 #endif
1863 /* helper for ImageList_Read, see comments below */
1864 static HBITMAP _read_bitmap(LPSTREAM pstm,int ilcFlag,int cx,int cy) {
1865 HDC xdc = 0, hBitmapDC =0;
1866 BITMAPFILEHEADER bmfh;
1867 BITMAPINFOHEADER bmih;
1868 int bitsperpixel,palspace,longsperline,width,height;
1869 LPBITMAPINFOHEADER bmihc = NULL;
1870 int result = 0;
1871 HBITMAP hbitmap = 0, hDIB = 0;
1872 LPBYTE bits = NULL;
1874 if (!SUCCEEDED(IStream_Read ( pstm, &bmfh, sizeof(bmfh), NULL)) ||
1875 (bmfh.bfType != (('M'<<8)|'B')) ||
1876 !SUCCEEDED(IStream_Read ( pstm, &bmih, sizeof(bmih), NULL)) ||
1877 (bmih.biSize != sizeof(bmih))
1879 return 0;
1881 bitsperpixel = bmih.biPlanes * bmih.biBitCount;
1882 if (bitsperpixel<=8)
1883 palspace = (1<<bitsperpixel)*sizeof(RGBQUAD);
1884 else
1885 palspace = 0;
1886 width = bmih.biWidth;
1887 height = bmih.biHeight;
1888 bmihc = (LPBITMAPINFOHEADER)LocalAlloc(LMEM_ZEROINIT,sizeof(bmih)+palspace);
1889 memcpy(bmihc,&bmih,sizeof(bmih));
1890 longsperline = ((width*bitsperpixel+31)&~0x1f)>>5;
1891 bmihc->biSizeImage = (longsperline*height)<<2;
1893 /* read the palette right after the end of the bitmapinfoheader */
1894 if (palspace)
1895 if (!SUCCEEDED(IStream_Read ( pstm, bmihc+1, palspace, NULL)))
1896 goto ret1;
1898 xdc = GetDC(0);
1899 #if 0 /* Magic for NxM -> 1x(N*M) not implemented for DIB Sections */
1900 if ((bitsperpixel>1) &&
1901 ((ilcFlag!=ILC_COLORDDB) && (!ilcFlag || may_use_dibsection(xdc)))
1903 hbitmap = CreateDIBSection(xdc,(BITMAPINFO*)bmihc,0,(LPVOID*)&bits,0,0);
1904 if (!hbitmap)
1905 goto ret1;
1906 if (!SUCCEEDED(IStream_Read( pstm, bits, bmihc->biSizeImage, NULL)))
1907 goto ret1;
1908 result = 1;
1909 } else
1910 #endif
1912 int i,nwidth,nheight,nRows;
1914 nwidth = width*(height/cy);
1915 nheight = cy;
1916 nRows = (height/cy);
1918 if (bitsperpixel==1)
1919 hbitmap = CreateBitmap(nwidth,nheight,1,1,NULL);
1920 else
1921 hbitmap = CreateCompatibleBitmap(xdc,nwidth,nheight);
1923 hDIB = CreateDIBSection(xdc,(BITMAPINFO*)bmihc,0,(LPVOID*)&bits,0,0);
1924 if (!hDIB)
1925 goto ret1;
1926 if (!SUCCEEDED(IStream_Read( pstm, bits, bmihc->biSizeImage, NULL)))
1927 goto ret1;
1929 hBitmapDC = CreateCompatibleDC(0);
1930 SelectObject(hBitmapDC, hbitmap);
1932 /* Copy the NxM bitmap into a 1x(N*M) bitmap we need, linewise */
1933 /* Do not forget that windows bitmaps are bottom->top */
1934 TRACE("nRows=%d\n", nRows);
1935 for (i=0; i < nRows; i++){
1936 StretchDIBits(hBitmapDC, width*i, 0, width, cy, 0, cy*(nRows-1-i), width, cy, bits,
1937 (BITMAPINFO*)bmihc, DIB_RGB_COLORS, SRCCOPY);
1940 result = 1;
1942 ret1:
1943 if (xdc) ReleaseDC(0,xdc);
1944 if (bmihc) LocalFree((HLOCAL)bmihc);
1945 if (hDIB) DeleteObject(hDIB);
1946 if (hBitmapDC) DeleteDC(hBitmapDC);
1947 if (!result) {
1948 if (hbitmap) {
1949 DeleteObject(hbitmap);
1950 hbitmap = 0;
1953 return hbitmap;
1956 /*************************************************************************
1957 * ImageList_Read [COMCTL32.@]
1959 * Reads an image list from a stream.
1961 * PARAMS
1962 * pstm [I] pointer to a stream
1964 * RETURNS
1965 * Success: handle to image list
1966 * Failure: NULL
1968 * The format is like this:
1969 * ILHEAD ilheadstruct;
1971 * for the color image part:
1972 * BITMAPFILEHEADER bmfh;
1973 * BITMAPINFOHEADER bmih;
1974 * only if it has a palette:
1975 * RGBQUAD rgbs[nr_of_paletted_colors];
1977 * BYTE colorbits[imagesize];
1979 * the following only if the ILC_MASK bit is set in ILHEAD.ilFlags:
1980 * BITMAPFILEHEADER bmfh_mask;
1981 * BITMAPINFOHEADER bmih_mask;
1982 * only if it has a palette (it usually does not):
1983 * RGBQUAD rgbs[nr_of_paletted_colors];
1985 * BYTE maskbits[imagesize];
1987 * CAVEAT: Those images are within a NxM bitmap, not the 1xN we expect.
1988 * _read_bitmap needs to convert them.
1990 HIMAGELIST WINAPI ImageList_Read (LPSTREAM pstm)
1992 ILHEAD ilHead;
1993 HIMAGELIST himl;
1994 HBITMAP hbmColor=0,hbmMask=0;
1995 int i;
1997 if (!SUCCEEDED(IStream_Read (pstm, &ilHead, sizeof(ILHEAD), NULL)))
1998 return NULL;
1999 if (ilHead.usMagic != (('L' << 8) | 'I'))
2000 return NULL;
2001 if (ilHead.usVersion != 0x101) /* probably version? */
2002 return NULL;
2004 #if 0
2005 FIXME(" ilHead.cCurImage = %d\n",ilHead.cCurImage);
2006 FIXME(" ilHead.cMaxImage = %d\n",ilHead.cMaxImage);
2007 FIXME(" ilHead.cGrow = %d\n",ilHead.cGrow);
2008 FIXME(" ilHead.cx = %d\n",ilHead.cx);
2009 FIXME(" ilHead.cy = %d\n",ilHead.cy);
2010 FIXME(" ilHead.flags = %x\n",ilHead.flags);
2011 FIXME(" ilHead.ovls[0] = %d\n",ilHead.ovls[0]);
2012 FIXME(" ilHead.ovls[1] = %d\n",ilHead.ovls[1]);
2013 FIXME(" ilHead.ovls[2] = %d\n",ilHead.ovls[2]);
2014 FIXME(" ilHead.ovls[3] = %d\n",ilHead.ovls[3]);
2015 #endif
2017 hbmColor = _read_bitmap(pstm,ilHead.flags & ~ILC_MASK,ilHead.cx,ilHead.cy);
2018 if (!hbmColor)
2019 return NULL;
2020 if (ilHead.flags & ILC_MASK) {
2021 hbmMask = _read_bitmap(pstm,0,ilHead.cx,ilHead.cy);
2022 if (!hbmMask) {
2023 DeleteObject(hbmColor);
2024 return NULL;
2028 himl = ImageList_Create (
2029 ilHead.cx,
2030 ilHead.cy,
2031 ilHead.flags,
2032 1, /* initial */
2033 ilHead.cGrow
2035 if (!himl) {
2036 DeleteObject(hbmColor);
2037 DeleteObject(hbmMask);
2038 return NULL;
2040 SelectObject(himl->hdcImage, hbmColor);
2041 DeleteObject(himl->hbmImage);
2042 himl->hbmImage = hbmColor;
2043 if (hbmMask){
2044 SelectObject(himl->hdcMask, hbmMask);
2045 DeleteObject(himl->hbmMask);
2046 himl->hbmMask = hbmMask;
2048 himl->cCurImage = ilHead.cCurImage;
2049 himl->cMaxImage = ilHead.cMaxImage;
2051 ImageList_SetBkColor(himl,ilHead.bkcolor);
2052 for (i=0;i<4;i++)
2053 ImageList_SetOverlayImage(himl,ilHead.ovls[i],i+1);
2054 return himl;
2058 /*************************************************************************
2059 * ImageList_Remove [COMCTL32.@]
2061 * Removes an image from an image list
2063 * PARAMS
2064 * himl [I] image list handle
2065 * i [I] image index
2067 * RETURNS
2068 * Success: TRUE
2069 * Failure: FALSE
2072 BOOL WINAPI
2073 ImageList_Remove (HIMAGELIST himl, INT i)
2075 HBITMAP hbmNewImage, hbmNewMask;
2076 HDC hdcBmp;
2077 INT cxNew, nCount;
2079 TRACE("(himl=%p i=%d)\n", himl, i);
2081 if (!is_valid(himl)) {
2082 ERR("Invalid image list handle!\n");
2083 return FALSE;
2086 if ((i < -1) || (i >= himl->cCurImage)) {
2087 TRACE("index out of range! %d\n", i);
2088 return FALSE;
2091 if (i == -1) {
2092 /* remove all */
2093 if (himl->cCurImage == 0) {
2094 /* remove all on empty ImageList is allowed */
2095 TRACE("remove all on empty ImageList!\n");
2096 return TRUE;
2099 himl->cMaxImage = himl->cInitial + himl->cGrow;
2100 himl->cCurImage = 0;
2101 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
2102 himl->nOvlIdx[nCount] = -1;
2104 hbmNewImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage * himl->cx, himl->cy);
2105 SelectObject (himl->hdcImage, hbmNewImage);
2106 DeleteObject (himl->hbmImage);
2107 himl->hbmImage = hbmNewImage;
2109 if (himl->hbmMask) {
2110 hbmNewMask = CreateBitmap (himl->cMaxImage * himl->cx, himl->cy,
2111 1, 1, NULL);
2112 SelectObject (himl->hdcMask, hbmNewMask);
2113 DeleteObject (himl->hbmMask);
2114 himl->hbmMask = hbmNewMask;
2117 else {
2118 /* delete one image */
2119 TRACE("Remove single image! %d\n", i);
2121 /* create new bitmap(s) */
2122 nCount = (himl->cCurImage + himl->cGrow - 1);
2123 cxNew = nCount * himl->cx;
2125 TRACE(" - Number of images: %d / %d (Old/New)\n",
2126 himl->cCurImage, himl->cCurImage - 1);
2127 TRACE(" - Max. number of images: %d / %d (Old/New)\n",
2128 himl->cMaxImage, himl->cCurImage + himl->cGrow - 1);
2130 hbmNewImage = ImageList_CreateImage(himl->hdcImage, himl, cxNew, himl->cy);
2132 if (himl->hbmMask)
2133 hbmNewMask = CreateBitmap (cxNew, himl->cy, 1, 1, NULL);
2134 else
2135 hbmNewMask = 0; /* Just to keep compiler happy! */
2137 hdcBmp = CreateCompatibleDC (0);
2139 /* copy all images and masks prior to the "removed" image */
2140 if (i > 0) {
2141 TRACE("Pre image copy: Copy %d images\n", i);
2143 SelectObject (hdcBmp, hbmNewImage);
2144 BitBlt (hdcBmp, 0, 0, i * himl->cx, himl->cy,
2145 himl->hdcImage, 0, 0, SRCCOPY);
2147 if (himl->hbmMask) {
2148 SelectObject (hdcBmp, hbmNewMask);
2149 BitBlt (hdcBmp, 0, 0, i * himl->cx, himl->cy,
2150 himl->hdcMask, 0, 0, SRCCOPY);
2154 /* copy all images and masks behind the removed image */
2155 if (i < himl->cCurImage - 1) {
2156 TRACE("Post image copy!\n");
2157 SelectObject (hdcBmp, hbmNewImage);
2158 BitBlt (hdcBmp, i * himl->cx, 0, (himl->cCurImage - i - 1) * himl->cx,
2159 himl->cy, himl->hdcImage, (i + 1) * himl->cx, 0, SRCCOPY);
2161 if (himl->hbmMask) {
2162 SelectObject (hdcBmp, hbmNewMask);
2163 BitBlt (hdcBmp, i * himl->cx, 0,
2164 (himl->cCurImage - i - 1) * himl->cx,
2165 himl->cy, himl->hdcMask, (i + 1) * himl->cx, 0, SRCCOPY);
2169 DeleteDC (hdcBmp);
2171 /* delete old images and insert new ones */
2172 SelectObject (himl->hdcImage, hbmNewImage);
2173 DeleteObject (himl->hbmImage);
2174 himl->hbmImage = hbmNewImage;
2175 if (himl->hbmMask) {
2176 SelectObject (himl->hdcMask, hbmNewMask);
2177 DeleteObject (himl->hbmMask);
2178 himl->hbmMask = hbmNewMask;
2181 himl->cCurImage--;
2182 himl->cMaxImage = himl->cCurImage + himl->cGrow;
2185 return TRUE;
2189 /*************************************************************************
2190 * ImageList_Replace [COMCTL32.@]
2192 * Replaces an image in an image list with a new image.
2194 * PARAMS
2195 * himl [I] handle to image list
2196 * i [I] image index
2197 * hbmImage [I] handle to image bitmap
2198 * hbmMask [I] handle to mask bitmap. Can be NULL.
2200 * RETURNS
2201 * Success: TRUE
2202 * Failure: FALSE
2205 BOOL WINAPI
2206 ImageList_Replace (HIMAGELIST himl, INT i, HBITMAP hbmImage,
2207 HBITMAP hbmMask)
2209 HDC hdcImage;
2210 BITMAP bmp;
2212 TRACE("%p %d %p %p\n", himl, i, hbmImage, hbmMask);
2214 if (!is_valid(himl)) {
2215 ERR("Invalid image list handle!\n");
2216 return FALSE;
2219 if ((i >= himl->cMaxImage) || (i < 0)) {
2220 ERR("Invalid image index!\n");
2221 return FALSE;
2224 hdcImage = CreateCompatibleDC (0);
2225 GetObjectA (hbmImage, sizeof(BITMAP), (LPVOID)&bmp);
2227 /* Replace Image */
2228 SelectObject (hdcImage, hbmImage);
2230 StretchBlt (himl->hdcImage, i * himl->cx, 0, himl->cx, himl->cy,
2231 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2233 if (himl->hbmMask)
2235 /* Replace Mask */
2236 SelectObject (hdcImage, hbmMask);
2238 StretchBlt (himl->hdcMask, i * himl->cx, 0, himl->cx, himl->cy,
2239 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2242 /* Remove the background from the image
2244 StretchBlt (himl->hdcImage,
2245 i*himl->cx, 0, himl->cx, himl->cy,
2246 hdcImage,
2247 0, 0, bmp.bmWidth, bmp.bmHeight,
2248 0x220326); /* NOTSRCAND */
2251 DeleteDC (hdcImage);
2253 return TRUE;
2257 /*************************************************************************
2258 * ImageList_ReplaceIcon [COMCTL32.@]
2260 * Replaces an image in an image list using an icon.
2262 * PARAMS
2263 * himl [I] handle to image list
2264 * i [I] image index
2265 * hIcon [I] handle to icon
2267 * RETURNS
2268 * Success: index of the replaced image
2269 * Failure: -1
2272 INT WINAPI
2273 ImageList_ReplaceIcon (HIMAGELIST himl, INT i, HICON hIcon)
2275 HDC hdcImage;
2276 INT nIndex;
2277 HICON hBestFitIcon;
2278 HBITMAP hbmOldSrc;
2279 ICONINFO ii;
2280 BITMAP bmp;
2282 TRACE("(%p %d %p)\n", himl, i, hIcon);
2284 if (!is_valid(himl))
2285 return -1;
2286 if ((i >= himl->cMaxImage) || (i < -1))
2287 return -1;
2289 hBestFitIcon = CopyImage(
2290 hIcon, IMAGE_ICON,
2291 himl->cx, himl->cy,
2292 LR_COPYFROMRESOURCE);
2294 GetIconInfo (hBestFitIcon, &ii);
2295 if (ii.hbmMask == 0)
2296 ERR("no mask!\n");
2297 if (ii.hbmColor == 0)
2298 ERR("no color!\n");
2299 GetObjectA (ii.hbmMask, sizeof(BITMAP), (LPVOID)&bmp);
2301 if (i == -1) {
2302 if (himl->cCurImage + 1 > himl->cMaxImage)
2303 IMAGELIST_InternalExpandBitmaps (himl, 1, 0, 0);
2305 nIndex = himl->cCurImage;
2306 himl->cCurImage++;
2308 else
2309 nIndex = i;
2311 hdcImage = CreateCompatibleDC (0);
2312 TRACE("hdcImage=%p\n", hdcImage);
2313 if (hdcImage == 0)
2314 ERR("invalid hdcImage!\n");
2316 SetTextColor(himl->hdcImage, RGB(0,0,0));
2317 SetBkColor (himl->hdcImage, RGB(255,255,255));
2318 hbmOldSrc = SelectObject (hdcImage, ii.hbmColor);
2320 StretchBlt (himl->hdcImage, nIndex * himl->cx, 0, himl->cx, himl->cy,
2321 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2323 if (himl->hbmMask) {
2324 SelectObject (hdcImage, ii.hbmMask);
2325 StretchBlt (himl->hdcMask, nIndex * himl->cx, 0, himl->cx, himl->cy,
2326 hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
2329 SelectObject (hdcImage, hbmOldSrc);
2331 if(hBestFitIcon)
2332 DestroyIcon(hBestFitIcon);
2333 if (hdcImage)
2334 DeleteDC (hdcImage);
2335 if (ii.hbmColor)
2336 DeleteObject (ii.hbmColor);
2337 if (ii.hbmMask)
2338 DeleteObject (ii.hbmMask);
2340 TRACE("Insert index = %d, himl->cCurImage = %d\n", nIndex, himl->cCurImage);
2341 return nIndex;
2345 /*************************************************************************
2346 * ImageList_SetBkColor [COMCTL32.@]
2348 * Sets the background color of an image list.
2350 * PARAMS
2351 * himl [I] handle to image list
2352 * clrBk [I] background color
2354 * RETURNS
2355 * Success: previous background color
2356 * Failure: CLR_NONE
2359 COLORREF WINAPI
2360 ImageList_SetBkColor (HIMAGELIST himl, COLORREF clrBk)
2362 COLORREF clrOldBk;
2364 if (!is_valid(himl))
2365 return CLR_NONE;
2367 clrOldBk = himl->clrBk;
2368 himl->clrBk = clrBk;
2369 return clrOldBk;
2373 /*************************************************************************
2374 * ImageList_SetDragCursorImage [COMCTL32.@]
2376 * Combines the specified image with the current drag image
2378 * PARAMS
2379 * himlDrag [I] handle to drag image list
2380 * iDrag [I] drag image index
2381 * dxHotspot [I] X position of the hot spot
2382 * dyHotspot [I] Y position of the hot spot
2384 * RETURNS
2385 * Success: TRUE
2386 * Failure: FALSE
2388 * NOTES
2389 * - The names dxHotspot, dyHotspot are misleading because they have nothing
2390 * to do with a hotspot but are only the offset of the origin of the new
2391 * image relative to the origin of the old image.
2393 * - When this function is called and the drag image is visible, a
2394 * short flickering occurs but this matches the Win9x behavior. It is
2395 * possible to fix the flickering using code like in ImageList_DragMove.
2398 BOOL WINAPI
2399 ImageList_SetDragCursorImage (HIMAGELIST himlDrag, INT iDrag,
2400 INT dxHotspot, INT dyHotspot)
2402 HIMAGELIST himlTemp;
2403 BOOL visible;
2405 if (!is_valid(InternalDrag.himl) || !is_valid(himlDrag))
2406 return FALSE;
2408 TRACE(" dxH=%d dyH=%d nX=%d nY=%d\n",
2409 dxHotspot, dyHotspot, InternalDrag.dxHotspot, InternalDrag.dyHotspot);
2411 visible = InternalDrag.bShow;
2413 himlTemp = ImageList_Merge (InternalDrag.himl, 0, himlDrag, iDrag,
2414 dxHotspot, dyHotspot);
2416 if (visible) {
2417 /* hide the drag image */
2418 ImageList_DragShowNolock(FALSE);
2420 if ((InternalDrag.himl->cx != himlTemp->cx) ||
2421 (InternalDrag.himl->cy != himlTemp->cy)) {
2422 /* the size of the drag image changed, invalidate the buffer */
2423 DeleteObject(InternalDrag.hbmBg);
2424 InternalDrag.hbmBg = 0;
2427 ImageList_Destroy (InternalDrag.himl);
2428 InternalDrag.himl = himlTemp;
2430 if (visible) {
2431 /* show the drag image */
2432 ImageList_DragShowNolock(TRUE);
2435 return TRUE;
2439 /*************************************************************************
2440 * ImageList_SetFilter [COMCTL32.@]
2442 * Sets a filter (or does something completely different)!!???
2443 * It removes 12 Bytes from the stack (3 Parameters).
2445 * PARAMS
2446 * himl [I] SHOULD be a handle to image list
2447 * i [I] COULD be an index?
2448 * dwFilter [I] ???
2450 * RETURNS
2451 * Success: TRUE ???
2452 * Failure: FALSE ???
2454 * BUGS
2455 * This is an UNDOCUMENTED function!!!!
2456 * empty stub.
2459 BOOL WINAPI
2460 ImageList_SetFilter (HIMAGELIST himl, INT i, DWORD dwFilter)
2462 FIXME("(%p 0x%x 0x%lx):empty stub!\n", himl, i, dwFilter);
2464 return FALSE;
2468 /*************************************************************************
2469 * ImageList_SetFlags [COMCTL32.@]
2471 * Sets the image list flags.
2473 * PARAMS
2474 * himl [I] Handle to image list
2475 * flags [I] Flags to set
2477 * RETURNS
2478 * Old flags?
2480 * BUGS
2481 * Stub.
2484 DWORD WINAPI
2485 ImageList_SetFlags(HIMAGELIST himl, DWORD flags)
2487 FIXME("(%p %08lx):empty stub\n", himl, flags);
2488 return 0;
2492 /*************************************************************************
2493 * ImageList_SetIconSize [COMCTL32.@]
2495 * Sets the image size of the bitmap and deletes all images.
2497 * PARAMS
2498 * himl [I] handle to image list
2499 * cx [I] image width
2500 * cy [I] image height
2502 * RETURNS
2503 * Success: TRUE
2504 * Failure: FALSE
2507 BOOL WINAPI
2508 ImageList_SetIconSize (HIMAGELIST himl, INT cx, INT cy)
2510 INT nCount;
2511 HBITMAP hbmNew;
2513 if (!is_valid(himl))
2514 return FALSE;
2516 /* remove all images */
2517 himl->cMaxImage = himl->cInitial + himl->cGrow;
2518 himl->cCurImage = 0;
2519 himl->cx = cx;
2520 himl->cy = cy;
2522 /* initialize overlay mask indices */
2523 for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
2524 himl->nOvlIdx[nCount] = -1;
2526 hbmNew = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage * himl->cx, himl->cy);
2527 SelectObject (himl->hdcImage, hbmNew);
2528 DeleteObject (himl->hbmImage);
2529 himl->hbmImage = hbmNew;
2531 if (himl->hbmMask) {
2532 hbmNew = CreateBitmap (himl->cMaxImage * himl->cx, himl->cy,
2533 1, 1, NULL);
2534 SelectObject (himl->hdcMask, hbmNew);
2535 DeleteObject (himl->hbmMask);
2536 himl->hbmMask = hbmNew;
2539 return TRUE;
2543 /*************************************************************************
2544 * ImageList_SetImageCount [COMCTL32.@]
2546 * Resizes an image list to the specified number of images.
2548 * PARAMS
2549 * himl [I] handle to image list
2550 * iImageCount [I] number of images in the image list
2552 * RETURNS
2553 * Success: TRUE
2554 * Failure: FALSE
2557 BOOL WINAPI
2558 ImageList_SetImageCount (HIMAGELIST himl, UINT iImageCount)
2560 HDC hdcBitmap;
2561 HBITMAP hbmNewBitmap;
2562 INT nNewCount, nCopyCount;
2564 TRACE("%p %d\n",himl,iImageCount);
2566 if (!is_valid(himl))
2567 return FALSE;
2568 if (himl->cCurImage >= iImageCount)
2569 return FALSE;
2570 if (himl->cMaxImage > iImageCount)
2572 himl->cCurImage = iImageCount;
2573 return TRUE;
2576 nNewCount = iImageCount + himl->cGrow;
2577 nCopyCount = min(himl->cCurImage, iImageCount);
2579 hdcBitmap = CreateCompatibleDC (0);
2581 hbmNewBitmap = ImageList_CreateImage(hdcBitmap, himl, nNewCount * himl->cx, himl->cy);
2583 if (hbmNewBitmap != 0)
2585 SelectObject (hdcBitmap, hbmNewBitmap);
2587 /* copy images */
2588 BitBlt (hdcBitmap, 0, 0, nCopyCount * himl->cx, himl->cy,
2589 himl->hdcImage, 0, 0, SRCCOPY);
2590 #if 0
2591 /* delete 'empty' image space */
2592 SetBkColor (hdcBitmap, RGB(255, 255, 255));
2593 SetTextColor (hdcBitmap, RGB(0, 0, 0));
2594 PatBlt (hdcBitmap, nCopyCount * himl->cx, 0,
2595 (nNewCount - nCopyCount) * himl->cx, himl->cy, BLACKNESS);
2596 #endif
2597 SelectObject (himl->hdcImage, hbmNewBitmap);
2598 DeleteObject (himl->hbmImage);
2599 himl->hbmImage = hbmNewBitmap;
2601 else
2602 ERR("Could not create new image bitmap !\n");
2604 if (himl->hbmMask)
2606 hbmNewBitmap = CreateBitmap (nNewCount * himl->cx, himl->cy,
2607 1, 1, NULL);
2608 if (hbmNewBitmap != 0)
2610 SelectObject (hdcBitmap, hbmNewBitmap);
2612 /* copy images */
2613 BitBlt (hdcBitmap, 0, 0, nCopyCount * himl->cx, himl->cy,
2614 himl->hdcMask, 0, 0, SRCCOPY);
2615 #if 0
2616 /* delete 'empty' image space */
2617 SetBkColor (hdcBitmap, RGB(255, 255, 255));
2618 SetTextColor (hdcBitmap, RGB(0, 0, 0));
2619 PatBlt (hdcBitmap, nCopyCount * himl->cx, 0,
2620 (nNewCount - nCopyCount) * himl->cx, himl->cy, BLACKNESS);
2621 #endif
2622 SelectObject (himl->hdcMask, hbmNewBitmap);
2623 DeleteObject (himl->hbmMask);
2624 himl->hbmMask = hbmNewBitmap;
2626 else
2627 ERR("Could not create new mask bitmap!\n");
2630 DeleteDC (hdcBitmap);
2632 /* Update max image count and current image count */
2633 himl->cMaxImage = nNewCount;
2634 himl->cCurImage = iImageCount;
2636 return TRUE;
2640 /*************************************************************************
2641 * ImageList_SetOverlayImage [COMCTL32.@]
2643 * Assigns an overlay mask index to an existing image in an image list.
2645 * PARAMS
2646 * himl [I] handle to image list
2647 * iImage [I] image index
2648 * iOverlay [I] overlay mask index
2650 * RETURNS
2651 * Success: TRUE
2652 * Failure: FALSE
2655 BOOL WINAPI
2656 ImageList_SetOverlayImage (HIMAGELIST himl, INT iImage, INT iOverlay)
2658 if (!is_valid(himl))
2659 return FALSE;
2660 if ((iOverlay < 1) || (iOverlay > MAX_OVERLAYIMAGE))
2661 return FALSE;
2662 if ((iImage!=-1) && ((iImage < 0) || (iImage > himl->cCurImage)))
2663 return FALSE;
2664 himl->nOvlIdx[iOverlay - 1] = iImage;
2665 return TRUE;
2670 /* helper for ImageList_Write - write bitmap to pstm
2671 * currently everything is written as 24 bit RGB, except masks
2673 static BOOL
2674 _write_bitmap(HBITMAP hBitmap, LPSTREAM pstm, int cx, int cy)
2676 LPBITMAPFILEHEADER bmfh;
2677 LPBITMAPINFOHEADER bmih;
2678 LPBYTE data, lpBits, lpBitsOrg;
2679 BITMAP bm;
2680 INT bitCount, sizeImage, offBits, totalSize;
2681 INT nwidth, nheight, nsizeImage, icount;
2682 HDC xdc;
2683 BOOL result = FALSE;
2686 xdc = GetDC(0);
2687 GetObjectA(hBitmap, sizeof(BITMAP), (LPVOID)&bm);
2689 /* XXX is this always correct? */
2690 icount = bm.bmWidth / cx;
2691 nwidth = cx;
2692 nheight = cy * icount;
2694 bitCount = bm.bmBitsPixel == 1 ? 1 : 24;
2695 sizeImage = ((((bm.bmWidth * bitCount)+31) & ~31) >> 3) * bm.bmHeight;
2696 nsizeImage = ((((nwidth * bitCount)+31) & ~31) >> 3) * nheight;
2698 totalSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
2699 if(bitCount != 24)
2700 totalSize += (1 << bitCount) * sizeof(RGBQUAD);
2701 offBits = totalSize;
2702 totalSize += nsizeImage;
2704 data = (LPBYTE)LocalAlloc(LMEM_ZEROINIT, totalSize);
2705 bmfh = (LPBITMAPFILEHEADER)data;
2706 bmih = (LPBITMAPINFOHEADER)(data + sizeof(BITMAPFILEHEADER));
2707 lpBits = data + offBits;
2709 /* setup BITMAPFILEHEADER */
2710 bmfh->bfType = (('M' << 8) | 'B');
2711 bmfh->bfSize = 0;
2712 bmfh->bfReserved1 = 0;
2713 bmfh->bfReserved2 = 0;
2714 bmfh->bfOffBits = offBits;
2716 /* setup BITMAPINFOHEADER */
2717 bmih->biSize = sizeof(BITMAPINFOHEADER);
2718 bmih->biWidth = bm.bmWidth;
2719 bmih->biHeight = bm.bmHeight;
2720 bmih->biPlanes = 1;
2721 bmih->biBitCount = bitCount;
2722 bmih->biCompression = BI_RGB;
2723 bmih->biSizeImage = sizeImage;
2724 bmih->biXPelsPerMeter = 0;
2725 bmih->biYPelsPerMeter = 0;
2726 bmih->biClrUsed = 0;
2727 bmih->biClrImportant = 0;
2729 lpBitsOrg = (LPBYTE)LocalAlloc(LMEM_ZEROINIT, sizeImage);
2730 if(!GetDIBits(xdc, hBitmap, 0, bm.bmHeight, lpBitsOrg,
2731 (BITMAPINFO *)bmih, DIB_RGB_COLORS))
2732 goto failed;
2733 else {
2734 int i;
2735 int obpl = (((bm.bmWidth*bitCount+31) & ~31)>>3);
2736 int nbpl = (((nwidth*bitCount+31) & ~31)>>3);
2738 for(i = 0; i < nheight; i++) {
2739 int ooff = ((nheight-1-i)%cy) * obpl + ((i/cy) * nbpl);
2740 int noff = (nbpl * (nheight-1-i));
2741 memcpy(lpBits + noff, lpBitsOrg + ooff, nbpl);
2745 bmih->biWidth = nwidth;
2746 bmih->biHeight = nheight;
2747 bmih->biSizeImage = nsizeImage;
2749 if(bitCount == 1) {
2750 /* Hack. */
2751 LPBITMAPINFO inf = (LPBITMAPINFO)bmih;
2752 inf->bmiColors[0].rgbRed = inf->bmiColors[0].rgbGreen = inf->bmiColors[0].rgbBlue = 0;
2753 inf->bmiColors[1].rgbRed = inf->bmiColors[1].rgbGreen = inf->bmiColors[1].rgbBlue = 0xff;
2756 if(!SUCCEEDED(IStream_Write(pstm, data, totalSize, NULL)))
2757 goto failed;
2759 result = TRUE;
2761 failed:
2762 ReleaseDC(0, xdc);
2763 LocalFree((HLOCAL)lpBitsOrg);
2764 LocalFree((HLOCAL)data);
2766 return result;
2770 /*************************************************************************
2771 * ImageList_Write [COMCTL32.@]
2773 * Writes an image list to a stream.
2775 * PARAMS
2776 * himl [I] handle to image list
2777 * pstm [O] Pointer to a stream.
2779 * RETURNS
2780 * Success: TRUE
2781 * Failure: FALSE
2783 * BUGS
2784 * probably.
2787 BOOL WINAPI
2788 ImageList_Write (HIMAGELIST himl, LPSTREAM pstm)
2790 ILHEAD ilHead;
2791 int i;
2793 if (!is_valid(himl))
2794 return FALSE;
2796 ilHead.usMagic = (('L' << 8) | 'I');
2797 ilHead.usVersion = 0x101;
2798 ilHead.cCurImage = himl->cCurImage;
2799 ilHead.cMaxImage = himl->cMaxImage;
2800 ilHead.cGrow = himl->cGrow;
2801 ilHead.cx = himl->cx;
2802 ilHead.cy = himl->cy;
2803 ilHead.bkcolor = himl->clrBk;
2804 ilHead.flags = himl->flags;
2805 for(i = 0; i < 4; i++) {
2806 ilHead.ovls[i] = himl->nOvlIdx[i];
2809 if(!SUCCEEDED(IStream_Write(pstm, &ilHead, sizeof(ILHEAD), NULL)))
2810 return FALSE;
2812 /* write the bitmap */
2813 if(!_write_bitmap(himl->hbmImage, pstm, himl->cx, himl->cy))
2814 return FALSE;
2816 /* write the mask if we have one */
2817 if(himl->flags & ILC_MASK) {
2818 if(!_write_bitmap(himl->hbmMask, pstm, himl->cx, himl->cy))
2819 return FALSE;
2822 return TRUE;
2826 static HBITMAP ImageList_CreateImage(HDC hdc, HIMAGELIST himl, UINT width, UINT height)
2828 HBITMAP hbmNewBitmap;
2829 UINT ilc = (himl->flags & 0xFE);
2831 if ((ilc >= ILC_COLOR4 && ilc <= ILC_COLOR32) || ilc == ILC_COLOR)
2833 VOID* bits;
2834 BITMAPINFO *bmi;
2836 TRACE("Creating DIBSection: %d Bits per Pixel\n", himl->uBitsPixel);
2838 if (himl->uBitsPixel <= ILC_COLOR8)
2840 LPPALETTEENTRY pal;
2841 ULONG i, colors;
2842 BYTE temp;
2844 colors = 1 << himl->uBitsPixel;
2845 bmi = HeapAlloc(GetProcessHeap(), 0, sizeof(BITMAPINFOHEADER) +
2846 sizeof(PALETTEENTRY) * colors);
2848 pal = (LPPALETTEENTRY)bmi->bmiColors;
2849 GetPaletteEntries(GetStockObject(DEFAULT_PALETTE), 0, colors, pal);
2851 /* Swap colors returned by GetPaletteEntries so we can use them for
2852 * CreateDIBSection call. */
2853 for (i = 0; i < colors; i++)
2855 temp = pal[i].peBlue;
2856 bmi->bmiColors[i].rgbRed = pal[i].peRed;
2857 bmi->bmiColors[i].rgbBlue = temp;
2860 else
2862 bmi = HeapAlloc(GetProcessHeap(), 0, sizeof(BITMAPINFOHEADER));
2865 bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
2866 bmi->bmiHeader.biWidth = width;
2867 bmi->bmiHeader.biHeight = height;
2868 bmi->bmiHeader.biPlanes = 1;
2869 bmi->bmiHeader.biBitCount = himl->uBitsPixel;
2870 bmi->bmiHeader.biCompression = BI_RGB;
2871 bmi->bmiHeader.biSizeImage = 0;
2872 bmi->bmiHeader.biXPelsPerMeter = 0;
2873 bmi->bmiHeader.biYPelsPerMeter = 0;
2874 bmi->bmiHeader.biClrUsed = 0;
2875 bmi->bmiHeader.biClrImportant = 0;
2877 hbmNewBitmap = CreateDIBSection(hdc, bmi, DIB_RGB_COLORS, &bits, 0, 0);
2879 HeapFree(GetProcessHeap(), 0, bmi);
2881 else /*if (ilc == ILC_COLORDDB)*/
2883 TRACE("Creating Bitmap: %d Bits per Pixel\n", himl->uBitsPixel);
2885 hbmNewBitmap = CreateBitmap (width, height, 1, himl->uBitsPixel, NULL);
2887 TRACE("returning %p\n", hbmNewBitmap);
2888 return hbmNewBitmap;
2891 /*************************************************************************
2892 * ImageList_SetColorTable [COMCTL32.@]
2894 * Sets the color table of an image list.
2896 * PARAMS
2897 * himl [I] Handle to the image list.
2898 * uStartIndex [I] The first index to set.
2899 * cEntries [I] Number of entries to set.
2900 * prgb [I] New color information for color table for the image list.
2902 * RETURNS
2903 * Success: Number of entries in the table that were set.
2904 * Failure: Zero.
2906 * SEE
2907 * ImageList_Create(), SetDIBColorTable()
2910 UINT WINAPI
2911 ImageList_SetColorTable (HIMAGELIST himl, UINT uStartIndex, UINT cEntries, CONST RGBQUAD * prgb)
2913 return SetDIBColorTable(himl->hdcImage, uStartIndex, cEntries, prgb);