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wine/windows/cursoricon.c
Dimitrie O. Paun 737d4be892 Move excpt.h out of include/msvcrt/ as it does not conflict with any 
standard Unix header.
2002-12-12 23:34:01 +00:00

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/*
* Cursor and icon support
*
* Copyright 1995 Alexandre Julliard
* 1996 Martin Von Loewis
* 1997 Alex Korobka
* 1998 Turchanov Sergey
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Theory:
*
* http://www.microsoft.com/win32dev/ui/icons.htm
*
* Cursors and icons are stored in a global heap block, with the
* following layout:
*
* CURSORICONINFO info;
* BYTE[] ANDbits;
* BYTE[] XORbits;
*
* The bits structures are in the format of a device-dependent bitmap.
*
* This layout is very sub-optimal, as the bitmap bits are stored in
* the X client instead of in the server like other bitmaps; however,
* some programs (notably Paint Brush) expect to be able to manipulate
* the bits directly :-(
*
* FIXME: what are we going to do with animation and color (bpp > 1) cursors ?!
*/
#include <string.h>
#include <stdlib.h>
#include "windef.h"
#include "wingdi.h"
#include "wownt32.h"
#include "wine/winbase16.h"
#include "wine/winuser16.h"
#include "wine/exception.h"
#include "bitmap.h"
#include "cursoricon.h"
#include "module.h"
#include "wine/debug.h"
#include "user.h"
#include "message.h"
#include "winerror.h"
#include "excpt.h"
WINE_DEFAULT_DEBUG_CHANNEL(cursor);
WINE_DECLARE_DEBUG_CHANNEL(icon);
WINE_DECLARE_DEBUG_CHANNEL(resource);
static RECT CURSOR_ClipRect; /* Cursor clipping rect */
static HDC screen_dc;
static const WCHAR DISPLAYW[] = {'D','I','S','P','L','A','Y',0};
/**********************************************************************
* ICONCACHE for cursors/icons loaded with LR_SHARED.
*
* FIXME: This should not be allocated on the system heap, but on a
* subsystem-global heap (i.e. one for all Win16 processes,
* and one for each Win32 process).
*/
typedef struct tagICONCACHE
{
struct tagICONCACHE *next;
HMODULE hModule;
HRSRC hRsrc;
HRSRC hGroupRsrc;
HICON hIcon;
INT count;
} ICONCACHE;
static ICONCACHE *IconAnchor = NULL;
static CRITICAL_SECTION IconCrst = CRITICAL_SECTION_INIT("IconCrst");
static WORD ICON_HOTSPOT = 0x4242;
/***********************************************************************
* map_fileW
*
* Helper function to map a file to memory:
* name - file name
* [RETURN] ptr - pointer to mapped file
*/
static void *map_fileW( LPCWSTR name )
{
HANDLE hFile, hMapping;
LPVOID ptr = NULL;
hFile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, 0 );
if (hFile != INVALID_HANDLE_VALUE)
{
hMapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
CloseHandle( hFile );
if (hMapping)
{
ptr = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
CloseHandle( hMapping );
}
}
return ptr;
}
/***********************************************************************
* get_bitmap_width_bytes
*
* Return number of bytes taken by a scanline of 16-bit aligned Windows DDB
* data.
*/
static int get_bitmap_width_bytes( int width, int bpp )
{
switch(bpp)
{
case 1:
return 2 * ((width+15) / 16);
case 4:
return 2 * ((width+3) / 4);
case 24:
width *= 3;
/* fall through */
case 8:
return width + (width & 1);
case 16:
case 15:
return width * 2;
case 32:
return width * 4;
default:
WARN("Unknown depth %d, please report.\n", bpp );
}
return -1;
}
/**********************************************************************
* CURSORICON_FindSharedIcon
*/
static HICON CURSORICON_FindSharedIcon( HMODULE hModule, HRSRC hRsrc )
{
HICON hIcon = 0;
ICONCACHE *ptr;
EnterCriticalSection( &IconCrst );
for ( ptr = IconAnchor; ptr; ptr = ptr->next )
if ( ptr->hModule == hModule && ptr->hRsrc == hRsrc )
{
ptr->count++;
hIcon = ptr->hIcon;
break;
}
LeaveCriticalSection( &IconCrst );
return hIcon;
}
/*************************************************************************
* CURSORICON_FindCache
*
* Given a handle, find the corresponding cache element
*
* PARAMS
* Handle [I] handle to an Image
*
* RETURNS
* Success: The cache entry
* Failure: NULL
*
*/
static ICONCACHE* CURSORICON_FindCache(HICON hIcon)
{
ICONCACHE *ptr;
ICONCACHE *pRet=NULL;
BOOL IsFound = FALSE;
int count;
EnterCriticalSection( &IconCrst );
for (count = 0, ptr = IconAnchor; ptr != NULL && !IsFound; ptr = ptr->next, count++ )
{
if ( hIcon == ptr->hIcon )
{
IsFound = TRUE;
pRet = ptr;
}
}
LeaveCriticalSection( &IconCrst );
return pRet;
}
/**********************************************************************
* CURSORICON_AddSharedIcon
*/
static void CURSORICON_AddSharedIcon( HMODULE hModule, HRSRC hRsrc, HRSRC hGroupRsrc, HICON hIcon )
{
ICONCACHE *ptr = HeapAlloc( GetProcessHeap(), 0, sizeof(ICONCACHE) );
if ( !ptr ) return;
ptr->hModule = hModule;
ptr->hRsrc = hRsrc;
ptr->hIcon = hIcon;
ptr->hGroupRsrc = hGroupRsrc;
ptr->count = 1;
EnterCriticalSection( &IconCrst );
ptr->next = IconAnchor;
IconAnchor = ptr;
LeaveCriticalSection( &IconCrst );
}
/**********************************************************************
* CURSORICON_DelSharedIcon
*/
static INT CURSORICON_DelSharedIcon( HICON hIcon )
{
INT count = -1;
ICONCACHE *ptr;
EnterCriticalSection( &IconCrst );
for ( ptr = IconAnchor; ptr; ptr = ptr->next )
if ( ptr->hIcon == hIcon )
{
if ( ptr->count > 0 ) ptr->count--;
count = ptr->count;
break;
}
LeaveCriticalSection( &IconCrst );
return count;
}
/**********************************************************************
* CURSORICON_FreeModuleIcons
*/
void CURSORICON_FreeModuleIcons( HMODULE16 hMod16 )
{
ICONCACHE **ptr = &IconAnchor;
HMODULE hModule = HMODULE_32(GetExePtr( hMod16 ));
EnterCriticalSection( &IconCrst );
while ( *ptr )
{
if ( (*ptr)->hModule == hModule )
{
ICONCACHE *freePtr = *ptr;
*ptr = freePtr->next;
GlobalFree16(HICON_16(freePtr->hIcon));
HeapFree( GetProcessHeap(), 0, freePtr );
continue;
}
ptr = &(*ptr)->next;
}
LeaveCriticalSection( &IconCrst );
}
/**********************************************************************
* CURSORICON_FindBestIcon
*
* Find the icon closest to the requested size and number of colors.
*/
static CURSORICONDIRENTRY *CURSORICON_FindBestIcon( CURSORICONDIR *dir, int width,
int height, int colors )
{
int i;
CURSORICONDIRENTRY *entry, *bestEntry = NULL;
UINT iTotalDiff, iXDiff=0, iYDiff=0, iColorDiff;
UINT iTempXDiff, iTempYDiff, iTempColorDiff;
if (dir->idCount < 1)
{
WARN_(icon)("Empty directory!\n" );
return NULL;
}
if (dir->idCount == 1) return &dir->idEntries[0]; /* No choice... */
/* Find Best Fit */
iTotalDiff = 0xFFFFFFFF;
iColorDiff = 0xFFFFFFFF;
for (i = 0, entry = &dir->idEntries[0]; i < dir->idCount; i++,entry++)
{
iTempXDiff = abs(width - entry->ResInfo.icon.bWidth);
iTempYDiff = abs(height - entry->ResInfo.icon.bHeight);
if(iTotalDiff > (iTempXDiff + iTempYDiff))
{
iXDiff = iTempXDiff;
iYDiff = iTempYDiff;
iTotalDiff = iXDiff + iYDiff;
}
}
/* Find Best Colors for Best Fit */
for (i = 0, entry = &dir->idEntries[0]; i < dir->idCount; i++,entry++)
{
if(abs(width - entry->ResInfo.icon.bWidth) == iXDiff &&
abs(height - entry->ResInfo.icon.bHeight) == iYDiff)
{
iTempColorDiff = abs(colors - entry->ResInfo.icon.bColorCount);
if(iColorDiff > iTempColorDiff)
{
bestEntry = entry;
iColorDiff = iTempColorDiff;
}
}
}
return bestEntry;
}
/**********************************************************************
* CURSORICON_FindBestCursor
*
* Find the cursor closest to the requested size.
* FIXME: parameter 'color' ignored and entries with more than 1 bpp
* ignored too
*/
static CURSORICONDIRENTRY *CURSORICON_FindBestCursor( CURSORICONDIR *dir,
int width, int height, int color)
{
int i, maxwidth, maxheight;
CURSORICONDIRENTRY *entry, *bestEntry = NULL;
if (dir->idCount < 1)
{
WARN_(cursor)("Empty directory!\n" );
return NULL;
}
if (dir->idCount == 1) return &dir->idEntries[0]; /* No choice... */
/* Double height to account for AND and XOR masks */
height *= 2;
/* First find the largest one smaller than or equal to the requested size*/
maxwidth = maxheight = 0;
for(i = 0,entry = &dir->idEntries[0]; i < dir->idCount; i++,entry++)
if ((entry->ResInfo.cursor.wWidth <= width) && (entry->ResInfo.cursor.wHeight <= height) &&
(entry->ResInfo.cursor.wWidth > maxwidth) && (entry->ResInfo.cursor.wHeight > maxheight) &&
(entry->wBitCount == 1))
{
bestEntry = entry;
maxwidth = entry->ResInfo.cursor.wWidth;
maxheight = entry->ResInfo.cursor.wHeight;
}
if (bestEntry) return bestEntry;
/* Now find the smallest one larger than the requested size */
maxwidth = maxheight = 255;
for(i = 0,entry = &dir->idEntries[0]; i < dir->idCount; i++,entry++)
if ((entry->ResInfo.cursor.wWidth < maxwidth) && (entry->ResInfo.cursor.wHeight < maxheight) &&
(entry->wBitCount == 1))
{
bestEntry = entry;
maxwidth = entry->ResInfo.cursor.wWidth;
maxheight = entry->ResInfo.cursor.wHeight;
}
return bestEntry;
}
/*********************************************************************
* The main purpose of this function is to create fake resource directory
* and fake resource entries. There are several reasons for this:
* - CURSORICONDIR and CURSORICONFILEDIR differ in sizes and their
* fields
* There are some "bad" cursor files which do not have
* bColorCount initialized but instead one must read this info
* directly from corresponding DIB sections
* Note: wResId is index to array of pointer returned in ptrs (origin is 1)
*/
static BOOL CURSORICON_SimulateLoadingFromResourceW( LPWSTR filename, BOOL fCursor,
CURSORICONDIR **res, LPBYTE **ptr)
{
LPBYTE _free;
CURSORICONFILEDIR *bits;
int entries, size, i;
*res = NULL;
*ptr = NULL;
if (!(bits = map_fileW( filename ))) return FALSE;
/* FIXME: test for inimated icons
* hack to load the first icon from the *.ani file
*/
if ( *(LPDWORD)bits==0x46464952 ) /* "RIFF" */
{ LPBYTE pos = (LPBYTE) bits;
FIXME_(cursor)("Animated icons not correctly implemented! %p \n", bits);
for (;;)
{ if (*(LPDWORD)pos==0x6e6f6369) /* "icon" */
{ FIXME_(cursor)("icon entry found! %p\n", bits);
pos+=4;
if ( !*(LPWORD) pos==0x2fe) /* iconsize */
{ goto fail;
}
bits=(CURSORICONFILEDIR*)(pos+4);
FIXME_(cursor)("icon size ok. offset=%p \n", bits);
break;
}
pos+=2;
if (pos>=(LPBYTE)bits+766) goto fail;
}
}
if (!(entries = bits->idCount)) goto fail;
size = sizeof(CURSORICONDIR) + sizeof(CURSORICONDIRENTRY) * (entries - 1);
_free = (LPBYTE) size;
for (i=0; i < entries; i++)
size += bits->idEntries[i].dwDIBSize + (fCursor ? sizeof(POINT16): 0);
if (!(*ptr = HeapAlloc( GetProcessHeap(), 0,
entries * sizeof (CURSORICONDIRENTRY*)))) goto fail;
if (!(*res = HeapAlloc( GetProcessHeap(), 0, size))) goto fail;
_free = (LPBYTE)(*res) + (int)_free;
memcpy((*res), bits, 6);
for (i=0; i<entries; i++)
{
((LPBYTE*)(*ptr))[i] = _free;
if (fCursor) {
(*res)->idEntries[i].ResInfo.cursor.wWidth=bits->idEntries[i].bWidth;
(*res)->idEntries[i].ResInfo.cursor.wHeight=bits->idEntries[i].bHeight;
((LPPOINT16)_free)->x=bits->idEntries[i].xHotspot;
((LPPOINT16)_free)->y=bits->idEntries[i].yHotspot;
_free+=sizeof(POINT16);
} else {
(*res)->idEntries[i].ResInfo.icon.bWidth=bits->idEntries[i].bWidth;
(*res)->idEntries[i].ResInfo.icon.bHeight=bits->idEntries[i].bHeight;
(*res)->idEntries[i].ResInfo.icon.bColorCount = bits->idEntries[i].bColorCount;
}
(*res)->idEntries[i].wPlanes=1;
(*res)->idEntries[i].wBitCount = ((LPBITMAPINFOHEADER)((LPBYTE)bits +
bits->idEntries[i].dwDIBOffset))->biBitCount;
(*res)->idEntries[i].dwBytesInRes = bits->idEntries[i].dwDIBSize;
(*res)->idEntries[i].wResId=i+1;
memcpy(_free,(LPBYTE)bits +bits->idEntries[i].dwDIBOffset,
(*res)->idEntries[i].dwBytesInRes);
_free += (*res)->idEntries[i].dwBytesInRes;
}
UnmapViewOfFile( bits );
return TRUE;
fail:
if (*res) HeapFree( GetProcessHeap(), 0, *res );
if (*ptr) HeapFree( GetProcessHeap(), 0, *ptr );
UnmapViewOfFile( bits );
return FALSE;
}
/**********************************************************************
* CURSORICON_CreateFromResource
*
* Create a cursor or icon from in-memory resource template.
*
* FIXME: Convert to mono when cFlag is LR_MONOCHROME. Do something
* with cbSize parameter as well.
*/
static HICON CURSORICON_CreateFromResource( HMODULE16 hModule, HGLOBAL16 hObj, LPBYTE bits,
UINT cbSize, BOOL bIcon, DWORD dwVersion,
INT width, INT height, UINT loadflags )
{
static HDC hdcMem;
int sizeAnd, sizeXor;
HBITMAP hAndBits = 0, hXorBits = 0; /* error condition for later */
BITMAP bmpXor, bmpAnd;
POINT16 hotspot;
BITMAPINFO *bmi;
BOOL DoStretch;
INT size;
hotspot.x = ICON_HOTSPOT;
hotspot.y = ICON_HOTSPOT;
TRACE_(cursor)("%08x (%u bytes), ver %08x, %ix%i %s %s\n",
(unsigned)bits, cbSize, (unsigned)dwVersion, width, height,
bIcon ? "icon" : "cursor", (loadflags & LR_MONOCHROME) ? "mono" : "" );
if (dwVersion == 0x00020000)
{
FIXME_(cursor)("\t2.xx resources are not supported\n");
return 0;
}
if (bIcon)
bmi = (BITMAPINFO *)bits;
else /* get the hotspot */
{
POINT16 *pt = (POINT16 *)bits;
hotspot = *pt;
bmi = (BITMAPINFO *)(pt + 1);
}
size = DIB_BitmapInfoSize( bmi, DIB_RGB_COLORS );
if (!width) width = bmi->bmiHeader.biWidth;
if (!height) height = bmi->bmiHeader.biHeight/2;
DoStretch = (bmi->bmiHeader.biHeight/2 != height) ||
(bmi->bmiHeader.biWidth != width);
/* Check bitmap header */
if ( (bmi->bmiHeader.biSize != sizeof(BITMAPCOREHEADER)) &&
(bmi->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) ||
bmi->bmiHeader.biCompression != BI_RGB) )
{
WARN_(cursor)("\tinvalid resource bitmap header.\n");
return 0;
}
if (!screen_dc) screen_dc = CreateDCA( "DISPLAY", NULL, NULL, NULL );
if (screen_dc)
{
BITMAPINFO* pInfo;
/* Make sure we have room for the monochrome bitmap later on.
* Note that BITMAPINFOINFO and BITMAPCOREHEADER are the same
* up to and including the biBitCount. In-memory icon resource
* format is as follows:
*
* BITMAPINFOHEADER icHeader // DIB header
* RGBQUAD icColors[] // Color table
* BYTE icXOR[] // DIB bits for XOR mask
* BYTE icAND[] // DIB bits for AND mask
*/
if ((pInfo = (BITMAPINFO *)HeapAlloc( GetProcessHeap(), 0,
max(size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD)))))
{
memcpy( pInfo, bmi, size );
pInfo->bmiHeader.biHeight /= 2;
/* Create the XOR bitmap */
if (DoStretch) {
if(bIcon)
{
hXorBits = CreateCompatibleBitmap(screen_dc, width, height);
}
else
{
hXorBits = CreateBitmap(width, height, 1, 1, NULL);
}
if(hXorBits)
{
HBITMAP hOld;
BOOL res = FALSE;
if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
if (hdcMem) {
hOld = SelectObject(hdcMem, hXorBits);
res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight/2,
(char*)bmi + size, pInfo, DIB_RGB_COLORS, SRCCOPY);
SelectObject(hdcMem, hOld);
}
if (!res) { DeleteObject(hXorBits); hXorBits = 0; }
}
} else hXorBits = CreateDIBitmap( screen_dc, &pInfo->bmiHeader,
CBM_INIT, (char*)bmi + size, pInfo, DIB_RGB_COLORS );
if( hXorBits )
{
char* xbits = (char *)bmi + size +
DIB_GetDIBImageBytes(bmi->bmiHeader.biWidth,
bmi->bmiHeader.biHeight,
bmi->bmiHeader.biBitCount) / 2;
pInfo->bmiHeader.biBitCount = 1;
if (pInfo->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))
{
RGBQUAD *rgb = pInfo->bmiColors;
pInfo->bmiHeader.biClrUsed = pInfo->bmiHeader.biClrImportant = 2;
rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
}
else
{
RGBTRIPLE *rgb = (RGBTRIPLE *)(((BITMAPCOREHEADER *)pInfo) + 1);
rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
}
/* Create the AND bitmap */
if (DoStretch) {
if ((hAndBits = CreateBitmap(width, height, 1, 1, NULL))) {
HBITMAP hOld;
BOOL res = FALSE;
if (!hdcMem) hdcMem = CreateCompatibleDC(screen_dc);
if (hdcMem) {
hOld = SelectObject(hdcMem, hAndBits);
res = StretchDIBits(hdcMem, 0, 0, width, height, 0, 0,
pInfo->bmiHeader.biWidth, pInfo->bmiHeader.biHeight,
xbits, pInfo, DIB_RGB_COLORS, SRCCOPY);
SelectObject(hdcMem, hOld);
}
if (!res) { DeleteObject(hAndBits); hAndBits = 0; }
}
} else hAndBits = CreateDIBitmap( screen_dc, &pInfo->bmiHeader,
CBM_INIT, xbits, pInfo, DIB_RGB_COLORS );
if( !hAndBits ) DeleteObject( hXorBits );
}
HeapFree( GetProcessHeap(), 0, pInfo );
}
}
if( !hXorBits || !hAndBits )
{
WARN_(cursor)("\tunable to create an icon bitmap.\n");
return 0;
}
/* Now create the CURSORICONINFO structure */
GetObjectA( hXorBits, sizeof(bmpXor), &bmpXor );
GetObjectA( hAndBits, sizeof(bmpAnd), &bmpAnd );
sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
if (hObj) hObj = GlobalReAlloc16( hObj,
sizeof(CURSORICONINFO) + sizeXor + sizeAnd, GMEM_MOVEABLE );
if (!hObj) hObj = GlobalAlloc16( GMEM_MOVEABLE,
sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
if (hObj)
{
CURSORICONINFO *info;
/* Make it owned by the module */
if (hModule) hModule = GetExePtr(hModule);
FarSetOwner16( hObj, hModule );
info = (CURSORICONINFO *)GlobalLock16( hObj );
info->ptHotSpot.x = hotspot.x;
info->ptHotSpot.y = hotspot.y;
info->nWidth = bmpXor.bmWidth;
info->nHeight = bmpXor.bmHeight;
info->nWidthBytes = bmpXor.bmWidthBytes;
info->bPlanes = bmpXor.bmPlanes;
info->bBitsPerPixel = bmpXor.bmBitsPixel;
/* Transfer the bitmap bits to the CURSORICONINFO structure */
GetBitmapBits( hAndBits, sizeAnd, (char *)(info + 1) );
GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd );
GlobalUnlock16( hObj );
}
DeleteObject( hAndBits );
DeleteObject( hXorBits );
return HICON_32((HICON16)hObj);
}
/**********************************************************************
* CreateIconFromResource (USER32.@)
*/
HICON WINAPI CreateIconFromResource( LPBYTE bits, UINT cbSize,
BOOL bIcon, DWORD dwVersion)
{
return CreateIconFromResourceEx( bits, cbSize, bIcon, dwVersion, 0,0,0);
}
/**********************************************************************
* CreateIconFromResourceEx (USER32.@)
*/
HICON WINAPI CreateIconFromResourceEx( LPBYTE bits, UINT cbSize,
BOOL bIcon, DWORD dwVersion,
INT width, INT height,
UINT cFlag )
{
return CURSORICON_CreateFromResource( 0, 0, bits, cbSize, bIcon, dwVersion,
width, height, cFlag );
}
/**********************************************************************
* CURSORICON_Load
*
* Load a cursor or icon from resource or file.
*/
static HICON CURSORICON_Load(HINSTANCE hInstance, LPCWSTR name,
INT width, INT height, INT colors,
BOOL fCursor, UINT loadflags)
{
HANDLE handle = 0;
HICON hIcon = 0;
HRSRC hRsrc;
CURSORICONDIR *dir;
CURSORICONDIRENTRY *dirEntry;
LPBYTE bits;
if ( loadflags & LR_LOADFROMFILE ) /* Load from file */
{
LPBYTE *ptr;
if (!CURSORICON_SimulateLoadingFromResourceW((LPWSTR)name, fCursor, &dir, &ptr))
return 0;
if (fCursor)
dirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestCursor(dir, width, height, 1);
else
dirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestIcon(dir, width, height, colors);
bits = ptr[dirEntry->wResId-1];
hIcon = CURSORICON_CreateFromResource( 0, 0, bits, dirEntry->dwBytesInRes,
!fCursor, 0x00030000, width, height, loadflags);
HeapFree( GetProcessHeap(), 0, dir );
HeapFree( GetProcessHeap(), 0, ptr );
}
else /* Load from resource */
{
HRSRC hGroupRsrc;
WORD wResId;
DWORD dwBytesInRes;
if (!hInstance) /* Load OEM cursor/icon */
{
if (!(hInstance = GetModuleHandleA( "user32.dll" ))) return 0;
}
/* Normalize hInstance (must be uniquely represented for icon cache) */
if ( HIWORD( hInstance ) )
hInstance = HINSTANCE_32(MapHModuleLS( hInstance ));
else
hInstance = HINSTANCE_32(GetExePtr( HINSTANCE_16(hInstance) ));
/* Get directory resource ID */
if (!(hRsrc = FindResourceW( hInstance, name,
fCursor ? RT_GROUP_CURSORW : RT_GROUP_ICONW )))
return 0;
hGroupRsrc = hRsrc;
/* Find the best entry in the directory */
if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
if (!(dir = (CURSORICONDIR*)LockResource( handle ))) return 0;
if (fCursor)
dirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestCursor( dir,
width, height, 1);
else
dirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestIcon( dir,
width, height, colors );
if (!dirEntry) return 0;
wResId = dirEntry->wResId;
dwBytesInRes = dirEntry->dwBytesInRes;
FreeResource( handle );
/* Load the resource */
if (!(hRsrc = FindResourceW(hInstance,MAKEINTRESOURCEW(wResId),
fCursor ? RT_CURSORW : RT_ICONW ))) return 0;
/* If shared icon, check whether it was already loaded */
if ( (loadflags & LR_SHARED)
&& (hIcon = CURSORICON_FindSharedIcon( hInstance, hRsrc ) ) != 0 )
return hIcon;
if (!(handle = LoadResource( hInstance, hRsrc ))) return 0;
bits = (LPBYTE)LockResource( handle );
hIcon = CURSORICON_CreateFromResource( 0, 0, bits, dwBytesInRes,
!fCursor, 0x00030000, width, height, loadflags);
FreeResource( handle );
/* If shared icon, add to icon cache */
if ( hIcon && (loadflags & LR_SHARED) )
CURSORICON_AddSharedIcon( hInstance, hRsrc, hGroupRsrc, hIcon );
}
return hIcon;
}
/***********************************************************************
* CURSORICON_Copy
*
* Make a copy of a cursor or icon.
*/
static HICON CURSORICON_Copy( HINSTANCE16 hInst16, HICON hIcon )
{
char *ptrOld, *ptrNew;
int size;
HICON16 hOld = HICON_16(hIcon);
HICON16 hNew;
if (!(ptrOld = (char *)GlobalLock16( hOld ))) return 0;
if (hInst16 && !(hInst16 = GetExePtr( hInst16 ))) return 0;
size = GlobalSize16( hOld );
hNew = GlobalAlloc16( GMEM_MOVEABLE, size );
FarSetOwner16( hNew, hInst16 );
ptrNew = (char *)GlobalLock16( hNew );
memcpy( ptrNew, ptrOld, size );
GlobalUnlock16( hOld );
GlobalUnlock16( hNew );
return HICON_32(hNew);
}
/*************************************************************************
* CURSORICON_ExtCopy
*
* Copies an Image from the Cache if LR_COPYFROMRESOURCE is specified
*
* PARAMS
* Handle [I] handle to an Image
* nType [I] Type of Handle (IMAGE_CURSOR | IMAGE_ICON)
* iDesiredCX [I] The Desired width of the Image
* iDesiredCY [I] The desired height of the Image
* nFlags [I] The flags from CopyImage
*
* RETURNS
* Success: The new handle of the Image
*
* NOTES
* LR_COPYDELETEORG and LR_MONOCHROME are currently not implemented.
* LR_MONOCHROME should be implemented by CURSORICON_CreateFromResource.
* LR_COPYFROMRESOURCE will only work if the Image is in the Cache.
*
*
*/
static HICON CURSORICON_ExtCopy(HICON hIcon, UINT nType,
INT iDesiredCX, INT iDesiredCY,
UINT nFlags)
{
HICON hNew=0;
TRACE_(icon)("hIcon %p, nType %u, iDesiredCX %i, iDesiredCY %i, nFlags %u\n",
hIcon, nType, iDesiredCX, iDesiredCY, nFlags);
if(hIcon == 0)
{
return 0;
}
/* Best Fit or Monochrome */
if( (nFlags & LR_COPYFROMRESOURCE
&& (iDesiredCX > 0 || iDesiredCY > 0))
|| nFlags & LR_MONOCHROME)
{
ICONCACHE* pIconCache = CURSORICON_FindCache(hIcon);
/* Not Found in Cache, then do a straight copy
*/
if(pIconCache == NULL)
{
hNew = CURSORICON_Copy(0, hIcon);
if(nFlags & LR_COPYFROMRESOURCE)
{
TRACE_(icon)("LR_COPYFROMRESOURCE: Failed to load from cache\n");
}
}
else
{
int iTargetCY = iDesiredCY, iTargetCX = iDesiredCX;
LPBYTE pBits;
HANDLE hMem;
HRSRC hRsrc;
DWORD dwBytesInRes;
WORD wResId;
CURSORICONDIR *pDir;
CURSORICONDIRENTRY *pDirEntry;
BOOL bIsIcon = (nType == IMAGE_ICON);
/* Completing iDesiredCX CY for Monochrome Bitmaps if needed
*/
if(((nFlags & LR_MONOCHROME) && !(nFlags & LR_COPYFROMRESOURCE))
|| (iDesiredCX == 0 && iDesiredCY == 0))
{
iDesiredCY = GetSystemMetrics(bIsIcon ?
SM_CYICON : SM_CYCURSOR);
iDesiredCX = GetSystemMetrics(bIsIcon ?
SM_CXICON : SM_CXCURSOR);
}
/* Retrieve the CURSORICONDIRENTRY
*/
if (!(hMem = LoadResource( pIconCache->hModule ,
pIconCache->hGroupRsrc)))
{
return 0;
}
if (!(pDir = (CURSORICONDIR*)LockResource( hMem )))
{
return 0;
}
/* Find Best Fit
*/
if(bIsIcon)
{
pDirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestIcon(
pDir, iDesiredCX, iDesiredCY, 256);
}
else
{
pDirEntry = (CURSORICONDIRENTRY *)CURSORICON_FindBestCursor(
pDir, iDesiredCX, iDesiredCY, 1);
}
wResId = pDirEntry->wResId;
dwBytesInRes = pDirEntry->dwBytesInRes;
FreeResource(hMem);
TRACE_(icon)("ResID %u, BytesInRes %lu, Width %d, Height %d DX %d, DY %d\n",
wResId, dwBytesInRes, pDirEntry->ResInfo.icon.bWidth,
pDirEntry->ResInfo.icon.bHeight, iDesiredCX, iDesiredCY);
/* Get the Best Fit
*/
if (!(hRsrc = FindResourceW(pIconCache->hModule ,
MAKEINTRESOURCEW(wResId), bIsIcon ? RT_ICONW : RT_CURSORW)))
{
return 0;
}
if (!(hMem = LoadResource( pIconCache->hModule , hRsrc )))
{
return 0;
}
pBits = (LPBYTE)LockResource( hMem );
if(nFlags & LR_DEFAULTSIZE)
{
iTargetCY = GetSystemMetrics(SM_CYICON);
iTargetCX = GetSystemMetrics(SM_CXICON);
}
/* Create a New Icon with the proper dimension
*/
hNew = CURSORICON_CreateFromResource( 0, 0, pBits, dwBytesInRes,
bIsIcon, 0x00030000, iTargetCX, iTargetCY, nFlags);
FreeResource(hMem);
}
}
else hNew = CURSORICON_Copy(0, hIcon);
return hNew;
}
/***********************************************************************
* CreateCursor (USER32.@)
*/
HCURSOR WINAPI CreateCursor( HINSTANCE hInstance,
INT xHotSpot, INT yHotSpot,
INT nWidth, INT nHeight,
LPCVOID lpANDbits, LPCVOID lpXORbits )
{
CURSORICONINFO info;
TRACE_(cursor)("%dx%d spot=%d,%d xor=%p and=%p\n",
nWidth, nHeight, xHotSpot, yHotSpot, lpXORbits, lpANDbits);
info.ptHotSpot.x = xHotSpot;
info.ptHotSpot.y = yHotSpot;
info.nWidth = nWidth;
info.nHeight = nHeight;
info.nWidthBytes = 0;
info.bPlanes = 1;
info.bBitsPerPixel = 1;
return HICON_32(CreateCursorIconIndirect16(MapHModuleLS(hInstance), &info,
lpANDbits, lpXORbits));
}
/***********************************************************************
* CreateIcon (USER.407)
*/
HICON16 WINAPI CreateIcon16( HINSTANCE16 hInstance, INT16 nWidth,
INT16 nHeight, BYTE bPlanes, BYTE bBitsPixel,
LPCVOID lpANDbits, LPCVOID lpXORbits )
{
CURSORICONINFO info;
TRACE_(icon)("%dx%dx%d, xor=%p, and=%p\n",
nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
info.ptHotSpot.x = ICON_HOTSPOT;
info.ptHotSpot.y = ICON_HOTSPOT;
info.nWidth = nWidth;
info.nHeight = nHeight;
info.nWidthBytes = 0;
info.bPlanes = bPlanes;
info.bBitsPerPixel = bBitsPixel;
return CreateCursorIconIndirect16( hInstance, &info, lpANDbits, lpXORbits );
}
/***********************************************************************
* CreateIcon (USER32.@)
*
* Creates an icon based on the specified bitmaps. The bitmaps must be
* provided in a device dependent format and will be resized to
* (SM_CXICON,SM_CYICON) and depth converted to match the screen's color
* depth. The provided bitmaps must be top-down bitmaps.
* Although Windows does not support 15bpp(*) this API must support it
* for Winelib applications.
*
* (*) Windows does not support 15bpp but it supports the 555 RGB 16bpp
* format!
*
* BUGS
*
* - The provided bitmaps are not resized!
* - The documentation says the lpXORbits bitmap must be in a device
* dependent format. But we must still resize it and perform depth
* conversions if necessary.
* - I'm a bit unsure about the how the 'device dependent format' thing works.
* I did some tests on windows and found that if you provide a 16bpp bitmap
* in lpXORbits, then its format but be 565 RGB if the screen's bit depth
* is 16bpp but it must be 555 RGB if the screen's bit depth is anything
* else. I don't know if this is part of the GDI specs or if this is a
* quirk of the graphics card driver.
* - You may think that we check whether the bit depths match or not
* as an optimization. But the truth is that the conversion using
* CreateDIBitmap does not work for some bit depth (e.g. 8bpp) and I have
* no idea why.
* - I'm pretty sure that all the things we do in CreateIcon should
* also be done in CreateIconIndirect...
*/
HICON WINAPI CreateIcon(
HINSTANCE hInstance, /* [in] the application's hInstance */
INT nWidth, /* [in] the width of the provided bitmaps */
INT nHeight, /* [in] the height of the provided bitmaps */
BYTE bPlanes, /* [in] the number of planes in the provided bitmaps */
BYTE bBitsPixel, /* [in] the number of bits per pixel of the lpXORbits bitmap */
LPCVOID lpANDbits, /* [in] a monochrome bitmap representing the icon's mask */
LPCVOID lpXORbits) /* [in] the icon's 'color' bitmap */
{
HICON hIcon;
HDC hdc;
TRACE_(icon)("%dx%dx%d, xor=%p, and=%p\n",
nWidth, nHeight, bPlanes * bBitsPixel, lpXORbits, lpANDbits);
hdc=GetDC(0);
if (!hdc)
return 0;
if (GetDeviceCaps(hdc,BITSPIXEL)==bBitsPixel) {
CURSORICONINFO info;
info.ptHotSpot.x = ICON_HOTSPOT;
info.ptHotSpot.y = ICON_HOTSPOT;
info.nWidth = nWidth;
info.nHeight = nHeight;
info.nWidthBytes = 0;
info.bPlanes = bPlanes;
info.bBitsPerPixel = bBitsPixel;
hIcon=HICON_32(CreateCursorIconIndirect16(MapHModuleLS(hInstance), &info,
lpANDbits, lpXORbits));
} else {
ICONINFO iinfo;
BITMAPINFO bmi;
iinfo.fIcon=TRUE;
iinfo.xHotspot=ICON_HOTSPOT;
iinfo.yHotspot=ICON_HOTSPOT;
iinfo.hbmMask=CreateBitmap(nWidth,nHeight,1,1,lpANDbits);
bmi.bmiHeader.biSize=sizeof(bmi.bmiHeader);
bmi.bmiHeader.biWidth=nWidth;
bmi.bmiHeader.biHeight=-nHeight;
bmi.bmiHeader.biPlanes=bPlanes;
bmi.bmiHeader.biBitCount=bBitsPixel;
bmi.bmiHeader.biCompression=BI_RGB;
bmi.bmiHeader.biSizeImage=0;
bmi.bmiHeader.biXPelsPerMeter=0;
bmi.bmiHeader.biYPelsPerMeter=0;
bmi.bmiHeader.biClrUsed=0;
bmi.bmiHeader.biClrImportant=0;
iinfo.hbmColor = CreateDIBitmap( hdc, &bmi.bmiHeader,
CBM_INIT, lpXORbits,
&bmi, DIB_RGB_COLORS );
hIcon=CreateIconIndirect(&iinfo);
DeleteObject(iinfo.hbmMask);
DeleteObject(iinfo.hbmColor);
}
ReleaseDC(0,hdc);
return hIcon;
}
/***********************************************************************
* CreateCursorIconIndirect (USER.408)
*/
HGLOBAL16 WINAPI CreateCursorIconIndirect16( HINSTANCE16 hInstance,
CURSORICONINFO *info,
LPCVOID lpANDbits,
LPCVOID lpXORbits )
{
HGLOBAL16 handle;
char *ptr;
int sizeAnd, sizeXor;
hInstance = GetExePtr( hInstance ); /* Make it a module handle */
if (!lpXORbits || !lpANDbits || info->bPlanes != 1) return 0;
info->nWidthBytes = get_bitmap_width_bytes(info->nWidth,info->bBitsPerPixel);
sizeXor = info->nHeight * info->nWidthBytes;
sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
if (!(handle = GlobalAlloc16( GMEM_MOVEABLE,
sizeof(CURSORICONINFO) + sizeXor + sizeAnd)))
return 0;
FarSetOwner16( handle, hInstance );
ptr = (char *)GlobalLock16( handle );
memcpy( ptr, info, sizeof(*info) );
memcpy( ptr + sizeof(CURSORICONINFO), lpANDbits, sizeAnd );
memcpy( ptr + sizeof(CURSORICONINFO) + sizeAnd, lpXORbits, sizeXor );
GlobalUnlock16( handle );
return handle;
}
/***********************************************************************
* CopyIcon (USER.368)
*/
HICON16 WINAPI CopyIcon16( HINSTANCE16 hInstance, HICON16 hIcon )
{
TRACE_(icon)("%04x %04x\n", hInstance, hIcon );
return HICON_16(CURSORICON_Copy(hInstance, HICON_32(hIcon)));
}
/***********************************************************************
* CopyIcon (USER32.@)
*/
HICON WINAPI CopyIcon( HICON hIcon )
{
TRACE_(icon)("%p\n", hIcon );
return CURSORICON_Copy( 0, hIcon );
}
/***********************************************************************
* CopyCursor (USER.369)
*/
HCURSOR16 WINAPI CopyCursor16( HINSTANCE16 hInstance, HCURSOR16 hCursor )
{
TRACE_(cursor)("%04x %04x\n", hInstance, hCursor );
return HICON_16(CURSORICON_Copy(hInstance, HCURSOR_32(hCursor)));
}
/**********************************************************************
* DestroyIcon32 (USER.610)
*
* This routine is actually exported from Win95 USER under the name
* DestroyIcon32 ... The behaviour implemented here should mimic
* the Win95 one exactly, especially the return values, which
* depend on the setting of various flags.
*/
WORD WINAPI DestroyIcon32( HGLOBAL16 handle, UINT16 flags )
{
WORD retv;
TRACE_(icon)("(%04x, %04x)\n", handle, flags );
/* Check whether destroying active cursor */
if ( QUEUE_Current()->cursor == HICON_32(handle) )
{
WARN_(cursor)("Destroying active cursor!\n" );
SetCursor( 0 );
}
/* Try shared cursor/icon first */
if ( !(flags & CID_NONSHARED) )
{
INT count = CURSORICON_DelSharedIcon(HICON_32(handle));
if ( count != -1 )
return (flags & CID_WIN32)? TRUE : (count == 0);
/* FIXME: OEM cursors/icons should be recognized */
}
/* Now assume non-shared cursor/icon */
retv = GlobalFree16( handle );
return (flags & CID_RESOURCE)? retv : TRUE;
}
/***********************************************************************
* DestroyIcon (USER32.@)
*/
BOOL WINAPI DestroyIcon( HICON hIcon )
{
return DestroyIcon32(HICON_16(hIcon), CID_WIN32);
}
/***********************************************************************
* DestroyCursor (USER32.@)
*/
BOOL WINAPI DestroyCursor( HCURSOR hCursor )
{
return DestroyIcon32(HCURSOR_16(hCursor), CID_WIN32);
}
/***********************************************************************
* DrawIcon (USER32.@)
*/
BOOL WINAPI DrawIcon( HDC hdc, INT x, INT y, HICON hIcon )
{
CURSORICONINFO *ptr;
HDC hMemDC;
HBITMAP hXorBits, hAndBits;
COLORREF oldFg, oldBg;
if (!(ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon)))) return FALSE;
if (!(hMemDC = CreateCompatibleDC( hdc ))) return FALSE;
hAndBits = CreateBitmap( ptr->nWidth, ptr->nHeight, 1, 1,
(char *)(ptr+1) );
hXorBits = CreateBitmap( ptr->nWidth, ptr->nHeight, ptr->bPlanes,
ptr->bBitsPerPixel, (char *)(ptr + 1)
+ ptr->nHeight * get_bitmap_width_bytes(ptr->nWidth,1) );
oldFg = SetTextColor( hdc, RGB(0,0,0) );
oldBg = SetBkColor( hdc, RGB(255,255,255) );
if (hXorBits && hAndBits)
{
HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
BitBlt( hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0, SRCAND );
SelectObject( hMemDC, hXorBits );
BitBlt(hdc, x, y, ptr->nWidth, ptr->nHeight, hMemDC, 0, 0,SRCINVERT);
SelectObject( hMemDC, hBitTemp );
}
DeleteDC( hMemDC );
if (hXorBits) DeleteObject( hXorBits );
if (hAndBits) DeleteObject( hAndBits );
GlobalUnlock16(HICON_16(hIcon));
SetTextColor( hdc, oldFg );
SetBkColor( hdc, oldBg );
return TRUE;
}
/***********************************************************************
* DumpIcon (USER.459)
*/
DWORD WINAPI DumpIcon16( SEGPTR pInfo, WORD *lpLen,
SEGPTR *lpXorBits, SEGPTR *lpAndBits )
{
CURSORICONINFO *info = MapSL( pInfo );
int sizeAnd, sizeXor;
if (!info) return 0;
sizeXor = info->nHeight * info->nWidthBytes;
sizeAnd = info->nHeight * get_bitmap_width_bytes( info->nWidth, 1 );
if (lpAndBits) *lpAndBits = pInfo + sizeof(CURSORICONINFO);
if (lpXorBits) *lpXorBits = pInfo + sizeof(CURSORICONINFO) + sizeAnd;
if (lpLen) *lpLen = sizeof(CURSORICONINFO) + sizeAnd + sizeXor;
return MAKELONG( sizeXor, sizeXor );
}
/***********************************************************************
* SetCursor (USER32.@)
* RETURNS:
* A handle to the previous cursor shape.
*/
HCURSOR WINAPI SetCursor( HCURSOR hCursor /* [in] Handle of cursor to show */ )
{
MESSAGEQUEUE *queue = QUEUE_Current();
HCURSOR hOldCursor;
if (hCursor == queue->cursor) return hCursor; /* No change */
TRACE_(cursor)("%p\n", hCursor );
hOldCursor = queue->cursor;
queue->cursor = hCursor;
/* Change the cursor shape only if it is visible */
if (queue->cursor_count >= 0)
{
USER_Driver.pSetCursor( (CURSORICONINFO*)GlobalLock16(HCURSOR_16(hCursor)) );
GlobalUnlock16(HCURSOR_16(hCursor));
}
return hOldCursor;
}
/***********************************************************************
* ShowCursor (USER32.@)
*/
INT WINAPI ShowCursor( BOOL bShow )
{
MESSAGEQUEUE *queue = QUEUE_Current();
TRACE_(cursor)("%d, count=%d\n", bShow, queue->cursor_count );
if (bShow)
{
if (++queue->cursor_count == 0) /* Show it */
{
USER_Driver.pSetCursor((CURSORICONINFO*)GlobalLock16(HCURSOR_16(queue->cursor)));
GlobalUnlock16(HCURSOR_16(queue->cursor));
}
}
else
{
if (--queue->cursor_count == -1) /* Hide it */
USER_Driver.pSetCursor( NULL );
}
return queue->cursor_count;
}
/***********************************************************************
* GetCursor (USER32.@)
*/
HCURSOR WINAPI GetCursor(void)
{
return QUEUE_Current()->cursor;
}
/***********************************************************************
* ClipCursor (USER.16)
*/
BOOL16 WINAPI ClipCursor16( const RECT16 *rect )
{
if (!rect) SetRectEmpty( &CURSOR_ClipRect );
else CONV_RECT16TO32( rect, &CURSOR_ClipRect );
return TRUE;
}
/***********************************************************************
* ClipCursor (USER32.@)
*/
BOOL WINAPI ClipCursor( const RECT *rect )
{
if (!rect) SetRectEmpty( &CURSOR_ClipRect );
else CopyRect( &CURSOR_ClipRect, rect );
return TRUE;
}
/***********************************************************************
* GetClipCursor (USER.309)
*/
void WINAPI GetClipCursor16( RECT16 *rect )
{
if (rect) CONV_RECT32TO16( &CURSOR_ClipRect, rect );
}
/***********************************************************************
* GetClipCursor (USER32.@)
*/
BOOL WINAPI GetClipCursor( RECT *rect )
{
if (rect)
{
CopyRect( rect, &CURSOR_ClipRect );
return TRUE;
}
return FALSE;
}
/**********************************************************************
* LookupIconIdFromDirectoryEx (USER.364)
*
* FIXME: exact parameter sizes
*/
INT16 WINAPI LookupIconIdFromDirectoryEx16( LPBYTE dir, BOOL16 bIcon,
INT16 width, INT16 height, UINT16 cFlag )
{
return LookupIconIdFromDirectoryEx( dir, bIcon, width, height, cFlag );
}
/**********************************************************************
* LookupIconIdFromDirectoryEx (USER32.@)
*/
INT WINAPI LookupIconIdFromDirectoryEx( LPBYTE xdir, BOOL bIcon,
INT width, INT height, UINT cFlag )
{
CURSORICONDIR *dir = (CURSORICONDIR*)xdir;
UINT retVal = 0;
if( dir && !dir->idReserved && (dir->idType & 3) )
{
CURSORICONDIRENTRY* entry;
HDC hdc;
UINT palEnts;
int colors;
hdc = GetDC(0);
palEnts = GetSystemPaletteEntries(hdc, 0, 0, NULL);
if (palEnts == 0)
palEnts = 256;
colors = (cFlag & LR_MONOCHROME) ? 2 : palEnts;
ReleaseDC(0, hdc);
if( bIcon )
entry = CURSORICON_FindBestIcon( dir, width, height, colors );
else
entry = CURSORICON_FindBestCursor( dir, width, height, 1);
if( entry ) retVal = entry->wResId;
}
else WARN_(cursor)("invalid resource directory\n");
return retVal;
}
/**********************************************************************
* LookupIconIdFromDirectory (USER.?)
*/
INT16 WINAPI LookupIconIdFromDirectory16( LPBYTE dir, BOOL16 bIcon )
{
return LookupIconIdFromDirectoryEx16( dir, bIcon,
bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
}
/**********************************************************************
* LookupIconIdFromDirectory (USER32.@)
*/
INT WINAPI LookupIconIdFromDirectory( LPBYTE dir, BOOL bIcon )
{
return LookupIconIdFromDirectoryEx( dir, bIcon,
bIcon ? GetSystemMetrics(SM_CXICON) : GetSystemMetrics(SM_CXCURSOR),
bIcon ? GetSystemMetrics(SM_CYICON) : GetSystemMetrics(SM_CYCURSOR), bIcon ? 0 : LR_MONOCHROME );
}
/**********************************************************************
* GetIconID (USER.455)
*/
WORD WINAPI GetIconID16( HGLOBAL16 hResource, DWORD resType )
{
LPBYTE lpDir = (LPBYTE)GlobalLock16(hResource);
TRACE_(cursor)("hRes=%04x, entries=%i\n",
hResource, lpDir ? ((CURSORICONDIR*)lpDir)->idCount : 0);
switch(resType)
{
case RT_CURSOR16:
return (WORD)LookupIconIdFromDirectoryEx16( lpDir, FALSE,
GetSystemMetrics(SM_CXCURSOR), GetSystemMetrics(SM_CYCURSOR), LR_MONOCHROME );
case RT_ICON16:
return (WORD)LookupIconIdFromDirectoryEx16( lpDir, TRUE,
GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), 0 );
default:
WARN_(cursor)("invalid res type %ld\n", resType );
}
return 0;
}
/**********************************************************************
* LoadCursorIconHandler (USER.336)
*
* Supposed to load resources of Windows 2.x applications.
*/
HGLOBAL16 WINAPI LoadCursorIconHandler16( HGLOBAL16 hResource, HMODULE16 hModule, HRSRC16 hRsrc )
{
FIXME_(cursor)("(%04x,%04x,%04x): old 2.x resources are not supported!\n",
hResource, hModule, hRsrc);
return (HGLOBAL16)0;
}
/**********************************************************************
* LoadDIBIconHandler (USER.357)
*
* RT_ICON resource loader, installed by USER_SignalProc when module
* is initialized.
*/
HGLOBAL16 WINAPI LoadDIBIconHandler16( HGLOBAL16 hMemObj, HMODULE16 hModule, HRSRC16 hRsrc )
{
/* If hResource is zero we must allocate a new memory block, if it's
* non-zero but GlobalLock() returns NULL then it was discarded and
* we have to recommit some memory, otherwise we just need to check
* the block size. See LoadProc() in 16-bit SDK for more.
*/
hMemObj = NE_DefResourceHandler( hMemObj, hModule, hRsrc );
if( hMemObj )
{
LPBYTE bits = (LPBYTE)GlobalLock16( hMemObj );
hMemObj = HICON_16(CURSORICON_CreateFromResource(
hModule, hMemObj, bits,
SizeofResource16(hModule, hRsrc), TRUE, 0x00030000,
GetSystemMetrics(SM_CXICON),
GetSystemMetrics(SM_CYICON), LR_DEFAULTCOLOR));
}
return hMemObj;
}
/**********************************************************************
* LoadDIBCursorHandler (USER.356)
*
* RT_CURSOR resource loader. Same as above.
*/
HGLOBAL16 WINAPI LoadDIBCursorHandler16( HGLOBAL16 hMemObj, HMODULE16 hModule, HRSRC16 hRsrc )
{
hMemObj = NE_DefResourceHandler( hMemObj, hModule, hRsrc );
if( hMemObj )
{
LPBYTE bits = (LPBYTE)GlobalLock16( hMemObj );
hMemObj = HICON_16(CURSORICON_CreateFromResource(
hModule, hMemObj, bits,
SizeofResource16(hModule, hRsrc), FALSE, 0x00030000,
GetSystemMetrics(SM_CXCURSOR),
GetSystemMetrics(SM_CYCURSOR), LR_MONOCHROME));
}
return hMemObj;
}
/**********************************************************************
* LoadIconHandler (USER.456)
*/
HICON16 WINAPI LoadIconHandler16( HGLOBAL16 hResource, BOOL16 bNew )
{
LPBYTE bits = (LPBYTE)LockResource16( hResource );
TRACE_(cursor)("hRes=%04x\n",hResource);
return HICON_16(CURSORICON_CreateFromResource(0, 0, bits, 0, TRUE,
bNew ? 0x00030000 : 0x00020000, 0, 0, LR_DEFAULTCOLOR));
}
/***********************************************************************
* LoadCursorW (USER32.@)
*/
HCURSOR WINAPI LoadCursorW(HINSTANCE hInstance, LPCWSTR name)
{
return LoadImageW( hInstance, name, IMAGE_CURSOR, 0, 0,
LR_SHARED | LR_DEFAULTSIZE );
}
/***********************************************************************
* LoadCursorA (USER32.@)
*/
HCURSOR WINAPI LoadCursorA(HINSTANCE hInstance, LPCSTR name)
{
return LoadImageA( hInstance, name, IMAGE_CURSOR, 0, 0,
LR_SHARED | LR_DEFAULTSIZE );
}
/***********************************************************************
* LoadCursorFromFileW (USER32.@)
*/
HCURSOR WINAPI LoadCursorFromFileW (LPCWSTR name)
{
return LoadImageW( 0, name, IMAGE_CURSOR, 0, 0,
LR_LOADFROMFILE | LR_DEFAULTSIZE );
}
/***********************************************************************
* LoadCursorFromFileA (USER32.@)
*/
HCURSOR WINAPI LoadCursorFromFileA (LPCSTR name)
{
return LoadImageA( 0, name, IMAGE_CURSOR, 0, 0,
LR_LOADFROMFILE | LR_DEFAULTSIZE );
}
/***********************************************************************
* LoadIconW (USER32.@)
*/
HICON WINAPI LoadIconW(HINSTANCE hInstance, LPCWSTR name)
{
return LoadImageW( hInstance, name, IMAGE_ICON, 0, 0,
LR_SHARED | LR_DEFAULTSIZE );
}
/***********************************************************************
* LoadIconA (USER32.@)
*/
HICON WINAPI LoadIconA(HINSTANCE hInstance, LPCSTR name)
{
return LoadImageA( hInstance, name, IMAGE_ICON, 0, 0,
LR_SHARED | LR_DEFAULTSIZE );
}
/**********************************************************************
* GetIconInfo (USER32.@)
*/
BOOL WINAPI GetIconInfo(HICON hIcon,PICONINFO iconinfo) {
CURSORICONINFO *ciconinfo;
ciconinfo = GlobalLock16(HICON_16(hIcon));
if (!ciconinfo)
return FALSE;
if ( (ciconinfo->ptHotSpot.x == ICON_HOTSPOT) &&
(ciconinfo->ptHotSpot.y == ICON_HOTSPOT) )
{
iconinfo->fIcon = TRUE;
iconinfo->xHotspot = ciconinfo->nWidth / 2;
iconinfo->yHotspot = ciconinfo->nHeight / 2;
}
else
{
iconinfo->fIcon = FALSE;
iconinfo->xHotspot = ciconinfo->ptHotSpot.x;
iconinfo->yHotspot = ciconinfo->ptHotSpot.y;
}
iconinfo->hbmColor = CreateBitmap ( ciconinfo->nWidth, ciconinfo->nHeight,
ciconinfo->bPlanes, ciconinfo->bBitsPerPixel,
(char *)(ciconinfo + 1)
+ ciconinfo->nHeight *
get_bitmap_width_bytes (ciconinfo->nWidth,1) );
iconinfo->hbmMask = CreateBitmap ( ciconinfo->nWidth, ciconinfo->nHeight,
1, 1, (char *)(ciconinfo + 1));
GlobalUnlock16(HICON_16(hIcon));
return TRUE;
}
/**********************************************************************
* CreateIconIndirect (USER32.@)
*/
HICON WINAPI CreateIconIndirect(PICONINFO iconinfo)
{
BITMAP bmpXor,bmpAnd;
HICON16 hObj;
int sizeXor,sizeAnd;
GetObjectA( iconinfo->hbmColor, sizeof(bmpXor), &bmpXor );
GetObjectA( iconinfo->hbmMask, sizeof(bmpAnd), &bmpAnd );
sizeXor = bmpXor.bmHeight * bmpXor.bmWidthBytes;
sizeAnd = bmpAnd.bmHeight * bmpAnd.bmWidthBytes;
hObj = GlobalAlloc16( GMEM_MOVEABLE,
sizeof(CURSORICONINFO) + sizeXor + sizeAnd );
if (hObj)
{
CURSORICONINFO *info;
info = (CURSORICONINFO *)GlobalLock16( hObj );
/* If we are creating an icon, the hotspot is unused */
if (iconinfo->fIcon)
{
info->ptHotSpot.x = ICON_HOTSPOT;
info->ptHotSpot.y = ICON_HOTSPOT;
}
else
{
info->ptHotSpot.x = iconinfo->xHotspot;
info->ptHotSpot.y = iconinfo->yHotspot;
}
info->nWidth = bmpXor.bmWidth;
info->nHeight = bmpXor.bmHeight;
info->nWidthBytes = bmpXor.bmWidthBytes;
info->bPlanes = bmpXor.bmPlanes;
info->bBitsPerPixel = bmpXor.bmBitsPixel;
/* Transfer the bitmap bits to the CURSORICONINFO structure */
GetBitmapBits( iconinfo->hbmMask ,sizeAnd,(char*)(info + 1) );
GetBitmapBits( iconinfo->hbmColor,sizeXor,(char*)(info + 1) +sizeAnd);
GlobalUnlock16( hObj );
}
return HICON_32(hObj);
}
/******************************************************************************
* DrawIconEx (USER32.@) Draws an icon or cursor on device context
*
* NOTES
* Why is this using SM_CXICON instead of SM_CXCURSOR?
*
* PARAMS
* hdc [I] Handle to device context
* x0 [I] X coordinate of upper left corner
* y0 [I] Y coordinate of upper left corner
* hIcon [I] Handle to icon to draw
* cxWidth [I] Width of icon
* cyWidth [I] Height of icon
* istep [I] Index of frame in animated cursor
* hbr [I] Handle to background brush
* flags [I] Icon-drawing flags
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
INT cxWidth, INT cyWidth, UINT istep,
HBRUSH hbr, UINT flags )
{
CURSORICONINFO *ptr = (CURSORICONINFO *)GlobalLock16(HICON_16(hIcon));
HDC hDC_off = 0, hMemDC;
BOOL result = FALSE, DoOffscreen;
HBITMAP hB_off = 0, hOld = 0;
if (!ptr) return FALSE;
TRACE_(icon)("(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,istep=%d,br=%p,flags=0x%08x)\n",
hdc,x0,y0,hIcon,cxWidth,cyWidth,istep,hbr,flags );
hMemDC = CreateCompatibleDC (hdc);
if (istep)
FIXME_(icon)("Ignoring istep=%d\n", istep);
if (flags & DI_COMPAT)
FIXME_(icon)("Ignoring flag DI_COMPAT\n");
if (!flags) {
FIXME_(icon)("no flags set? setting to DI_NORMAL\n");
flags = DI_NORMAL;
}
/* Calculate the size of the destination image. */
if (cxWidth == 0)
{
if (flags & DI_DEFAULTSIZE)
cxWidth = GetSystemMetrics (SM_CXICON);
else
cxWidth = ptr->nWidth;
}
if (cyWidth == 0)
{
if (flags & DI_DEFAULTSIZE)
cyWidth = GetSystemMetrics (SM_CYICON);
else
cyWidth = ptr->nHeight;
}
DoOffscreen = (GetObjectType( hbr ) == OBJ_BRUSH);
if (DoOffscreen) {
RECT r;
r.left = 0;
r.top = 0;
r.right = cxWidth;
r.bottom = cxWidth;
hDC_off = CreateCompatibleDC(hdc);
hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth);
if (hDC_off && hB_off) {
hOld = SelectObject(hDC_off, hB_off);
FillRect(hDC_off, &r, hbr);
}
}
if (hMemDC && (!DoOffscreen || (hDC_off && hB_off)))
{
HBITMAP hXorBits, hAndBits;
COLORREF oldFg, oldBg;
INT nStretchMode;
nStretchMode = SetStretchBltMode (hdc, STRETCH_DELETESCANS);
hXorBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
ptr->bPlanes, ptr->bBitsPerPixel,
(char *)(ptr + 1)
+ ptr->nHeight *
get_bitmap_width_bytes(ptr->nWidth,1) );
hAndBits = CreateBitmap ( ptr->nWidth, ptr->nHeight,
1, 1, (char *)(ptr+1) );
oldFg = SetTextColor( hdc, RGB(0,0,0) );
oldBg = SetBkColor( hdc, RGB(255,255,255) );
if (hXorBits && hAndBits)
{
HBITMAP hBitTemp = SelectObject( hMemDC, hAndBits );
if (flags & DI_MASK)
{
if (DoOffscreen)
StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
else
StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCAND);
}
SelectObject( hMemDC, hXorBits );
if (flags & DI_IMAGE)
{
if (DoOffscreen)
StretchBlt (hDC_off, 0, 0, cxWidth, cyWidth,
hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
else
StretchBlt (hdc, x0, y0, cxWidth, cyWidth,
hMemDC, 0, 0, ptr->nWidth, ptr->nHeight, SRCPAINT);
}
SelectObject( hMemDC, hBitTemp );
result = TRUE;
}
SetTextColor( hdc, oldFg );
SetBkColor( hdc, oldBg );
if (hXorBits) DeleteObject( hXorBits );
if (hAndBits) DeleteObject( hAndBits );
SetStretchBltMode (hdc, nStretchMode);
if (DoOffscreen) {
BitBlt(hdc, x0, y0, cxWidth, cyWidth, hDC_off, 0, 0, SRCCOPY);
SelectObject(hDC_off, hOld);
}
}
if (hMemDC) DeleteDC( hMemDC );
if (hDC_off) DeleteDC(hDC_off);
if (hB_off) DeleteObject(hB_off);
GlobalUnlock16(HICON_16(hIcon));
return result;
}
/***********************************************************************
* DIB_FixColorsToLoadflags
*
* Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
* are in loadflags
*/
static void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
{
int colors;
COLORREF c_W, c_S, c_F, c_L, c_C;
int incr,i;
RGBQUAD *ptr;
if (bmi->bmiHeader.biBitCount > 8) return;
if (bmi->bmiHeader.biSize == sizeof(BITMAPINFOHEADER)) incr = 4;
else if (bmi->bmiHeader.biSize == sizeof(BITMAPCOREHEADER)) incr = 3;
else {
WARN_(resource)("Wrong bitmap header size!\n");
return;
}
colors = bmi->bmiHeader.biClrUsed;
if (!colors && (bmi->bmiHeader.biBitCount <= 8))
colors = 1 << bmi->bmiHeader.biBitCount;
c_W = GetSysColor(COLOR_WINDOW);
c_S = GetSysColor(COLOR_3DSHADOW);
c_F = GetSysColor(COLOR_3DFACE);
c_L = GetSysColor(COLOR_3DLIGHT);
if (loadflags & LR_LOADTRANSPARENT) {
switch (bmi->bmiHeader.biBitCount) {
case 1: pix = pix >> 7; break;
case 4: pix = pix >> 4; break;
case 8: break;
default:
WARN_(resource)("(%d): Unsupported depth\n", bmi->bmiHeader.biBitCount);
return;
}
if (pix >= colors) {
WARN_(resource)("pixel has color index greater than biClrUsed!\n");
return;
}
if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
ptr->rgbBlue = GetBValue(c_W);
ptr->rgbGreen = GetGValue(c_W);
ptr->rgbRed = GetRValue(c_W);
}
if (loadflags & LR_LOADMAP3DCOLORS)
for (i=0; i<colors; i++) {
ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
if (c_C == RGB(128, 128, 128)) {
ptr->rgbRed = GetRValue(c_S);
ptr->rgbGreen = GetGValue(c_S);
ptr->rgbBlue = GetBValue(c_S);
} else if (c_C == RGB(192, 192, 192)) {
ptr->rgbRed = GetRValue(c_F);
ptr->rgbGreen = GetGValue(c_F);
ptr->rgbBlue = GetBValue(c_F);
} else if (c_C == RGB(223, 223, 223)) {
ptr->rgbRed = GetRValue(c_L);
ptr->rgbGreen = GetGValue(c_L);
ptr->rgbBlue = GetBValue(c_L);
}
}
}
/**********************************************************************
* BITMAP_Load
*/
static HBITMAP BITMAP_Load( HINSTANCE instance,LPCWSTR name, UINT loadflags )
{
HBITMAP hbitmap = 0;
HRSRC hRsrc;
HGLOBAL handle;
char *ptr = NULL;
BITMAPINFO *info, *fix_info=NULL;
HGLOBAL hFix;
int size;
if (!(loadflags & LR_LOADFROMFILE))
{
if (!instance)
{
/* OEM bitmap: try to load the resource from user32.dll */
if (HIWORD(name)) return 0;
if (!(instance = GetModuleHandleA("user32.dll"))) return 0;
}
if (!(hRsrc = FindResourceW( instance, name, RT_BITMAPW ))) return 0;
if (!(handle = LoadResource( instance, hRsrc ))) return 0;
if ((info = (BITMAPINFO *)LockResource( handle )) == NULL) return 0;
}
else
{
if (!(ptr = map_fileW( name ))) return 0;
info = (BITMAPINFO *)(ptr + sizeof(BITMAPFILEHEADER));
}
size = DIB_BitmapInfoSize(info, DIB_RGB_COLORS);
if ((hFix = GlobalAlloc(0, size))) fix_info=GlobalLock(hFix);
if (fix_info) {
BYTE pix;
memcpy(fix_info, info, size);
pix = *((LPBYTE)info+DIB_BitmapInfoSize(info, DIB_RGB_COLORS));
DIB_FixColorsToLoadflags(fix_info, loadflags, pix);
if (!screen_dc) screen_dc = CreateDCA( "DISPLAY", NULL, NULL, NULL );
if (screen_dc)
{
char *bits = (char *)info + size;
if (loadflags & LR_CREATEDIBSECTION) {
DIBSECTION dib;
hbitmap = CreateDIBSection(screen_dc, fix_info, DIB_RGB_COLORS, NULL, 0, 0);
GetObjectA(hbitmap, sizeof(DIBSECTION), &dib);
SetDIBits(screen_dc, hbitmap, 0, dib.dsBm.bmHeight, bits, info,
DIB_RGB_COLORS);
}
else {
hbitmap = CreateDIBitmap( screen_dc, &fix_info->bmiHeader, CBM_INIT,
bits, fix_info, DIB_RGB_COLORS );
}
}
GlobalUnlock(hFix);
GlobalFree(hFix);
}
if (loadflags & LR_LOADFROMFILE) UnmapViewOfFile( ptr );
return hbitmap;
}
/**********************************************************************
* LoadImageA (USER32.@)
*
* FIXME: implementation lacks some features, see LR_ defines in winuser.h
*/
/* filter for page-fault exceptions */
static WINE_EXCEPTION_FILTER(page_fault)
{
if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
return EXCEPTION_EXECUTE_HANDLER;
return EXCEPTION_CONTINUE_SEARCH;
}
/*********************************************************************/
HANDLE WINAPI LoadImageA( HINSTANCE hinst, LPCSTR name, UINT type,
INT desiredx, INT desiredy, UINT loadflags)
{
HANDLE res;
LPWSTR u_name;
if (!HIWORD(name))
return LoadImageW(hinst, (LPWSTR)name, type, desiredx, desiredy, loadflags);
__TRY {
DWORD len = MultiByteToWideChar( CP_ACP, 0, name, -1, NULL, 0 );
u_name = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
MultiByteToWideChar( CP_ACP, 0, name, -1, u_name, len );
}
__EXCEPT(page_fault) {
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
__ENDTRY
res = LoadImageW(hinst, u_name, type, desiredx, desiredy, loadflags);
HeapFree(GetProcessHeap(), 0, u_name);
return res;
}
/******************************************************************************
* LoadImageW (USER32.@) Loads an icon, cursor, or bitmap
*
* PARAMS
* hinst [I] Handle of instance that contains image
* name [I] Name of image
* type [I] Type of image
* desiredx [I] Desired width
* desiredy [I] Desired height
* loadflags [I] Load flags
*
* RETURNS
* Success: Handle to newly loaded image
* Failure: NULL
*
* FIXME: Implementation lacks some features, see LR_ defines in winuser.h
*/
HANDLE WINAPI LoadImageW( HINSTANCE hinst, LPCWSTR name, UINT type,
INT desiredx, INT desiredy, UINT loadflags )
{
if (HIWORD(name)) {
TRACE_(resource)("(%p,%p,%d,%d,%d,0x%08x)\n",
hinst,name,type,desiredx,desiredy,loadflags);
} else {
TRACE_(resource)("(%p,%p,%d,%d,%d,0x%08x)\n",
hinst,name,type,desiredx,desiredy,loadflags);
}
if (loadflags & LR_DEFAULTSIZE) {
if (type == IMAGE_ICON) {
if (!desiredx) desiredx = GetSystemMetrics(SM_CXICON);
if (!desiredy) desiredy = GetSystemMetrics(SM_CYICON);
} else if (type == IMAGE_CURSOR) {
if (!desiredx) desiredx = GetSystemMetrics(SM_CXCURSOR);
if (!desiredy) desiredy = GetSystemMetrics(SM_CYCURSOR);
}
}
if (loadflags & LR_LOADFROMFILE) loadflags &= ~LR_SHARED;
switch (type) {
case IMAGE_BITMAP:
return BITMAP_Load( hinst, name, loadflags );
case IMAGE_ICON:
if (!screen_dc) screen_dc = CreateDCW( DISPLAYW, NULL, NULL, NULL );
if (screen_dc)
{
UINT palEnts = GetSystemPaletteEntries(screen_dc, 0, 0, NULL);
if (palEnts == 0) palEnts = 256;
return CURSORICON_Load(hinst, name, desiredx, desiredy,
palEnts, FALSE, loadflags);
}
break;
case IMAGE_CURSOR:
return CURSORICON_Load(hinst, name, desiredx, desiredy,
1, TRUE, loadflags);
}
return 0;
}
/******************************************************************************
* CopyImage (USER32.@) Creates new image and copies attributes to it
*
* PARAMS
* hnd [I] Handle to image to copy
* type [I] Type of image to copy
* desiredx [I] Desired width of new image
* desiredy [I] Desired height of new image
* flags [I] Copy flags
*
* RETURNS
* Success: Handle to newly created image
* Failure: NULL
*
* FIXME: implementation still lacks nearly all features, see LR_*
* defines in winuser.h
*/
HICON WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
INT desiredy, UINT flags )
{
switch (type)
{
case IMAGE_BITMAP:
{
HBITMAP res;
BITMAP bm;
if (!GetObjectW( hnd, sizeof(bm), &bm )) return 0;
bm.bmBits = NULL;
if ((res = CreateBitmapIndirect(&bm)))
{
char *buf = HeapAlloc( GetProcessHeap(), 0, bm.bmWidthBytes * bm.bmHeight );
GetBitmapBits( hnd, bm.bmWidthBytes * bm.bmHeight, buf );
SetBitmapBits( res, bm.bmWidthBytes * bm.bmHeight, buf );
HeapFree( GetProcessHeap(), 0, buf );
}
return (HICON)res;
}
case IMAGE_ICON:
return CURSORICON_ExtCopy(hnd,type, desiredx, desiredy, flags);
case IMAGE_CURSOR:
/* Should call CURSORICON_ExtCopy but more testing
* needs to be done before we change this
*/
return CopyCursor(hnd);
}
return 0;
}
/******************************************************************************
* LoadBitmapW (USER32.@) Loads bitmap from the executable file
*
* RETURNS
* Success: Handle to specified bitmap
* Failure: NULL
*/
HBITMAP WINAPI LoadBitmapW(
HINSTANCE instance, /* [in] Handle to application instance */
LPCWSTR name) /* [in] Address of bitmap resource name */
{
return LoadImageW( instance, name, IMAGE_BITMAP, 0, 0, 0 );
}
/**********************************************************************
* LoadBitmapA (USER32.@)
*/
HBITMAP WINAPI LoadBitmapA( HINSTANCE instance, LPCSTR name )
{
return LoadImageA( instance, name, IMAGE_BITMAP, 0, 0, 0 );
}
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