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Translate pixel value from internal pixel format to RGB. Fixes bug #251.

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svn path=/trunk/; revision=8697
This commit is contained in:
Gé van Geldorp 2004-03-14 00:11:28 +00:00
parent e8cf99cda9
commit cd7fbb8e5c
1 changed files with 32 additions and 1 deletions
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33
reactos/subsys/win32k/objects/bitmaps.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: bitmaps.c,v 1.60 2004/03/10 16:55:03 navaraf Exp $ */
/* $Id: bitmaps.c,v 1.61 2004/03/14 00:11:28 gvg Exp $ */
#undef WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdlib.h>
@ -458,6 +458,10 @@ COLORREF STDCALL NtGdiGetPixel(HDC hDC, INT XPos, INT YPos)
COLORREF Result = (COLORREF) 0;
PSURFGDI Surface;
PSURFOBJ SurfaceObject;
HPALETTE Pal;
PPALGDI PalGDI;
USHORT PalMode;
PXLATEOBJ XlateObj = NULL;
dc = DC_LockDc (hDC);
if (dc == NULL)
@ -480,6 +484,33 @@ COLORREF STDCALL NtGdiGetPixel(HDC hDC, INT XPos, INT YPos)
return (COLORREF)CLR_INVALID;
}
Result = Surface->DIB_GetPixel(SurfaceObject, XPos, YPos);
if (dc->w.hPalette != 0)
{
Pal = dc->w.hPalette;
}
else
{
Pal = NtGdiGetStockObject(DEFAULT_PALETTE);
}
PalGDI = PALETTE_LockPalette(Pal);
if (NULL == PalGDI)
{
DC_UnlockDc(hDC);
return (COLORREF)CLR_INVALID;
}
PalMode = PalGDI->Mode;
PALETTE_UnlockPalette(Pal);
XlateObj = (PXLATEOBJ) IntEngCreateXlate(PAL_RGB, PalMode, NULL, Pal);
if (NULL == XlateObj)
{
DC_UnlockDc(hDC);
return (COLORREF)CLR_INVALID;
}
Result = XLATEOBJ_iXlate(XlateObj, Result);
EngDeleteXlate(XlateObj);
DC_UnlockDc(hDC);
return Result;
}