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[SHLWAPI] Implement SHCreateShellPalette (#8123)

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Implementing missing features...
JIRA issue: CORE-19278
Implement SHCreateShellPalette function.
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Katayama Hirofumi MZ 2025-06-14 20:27:23 +09:00 • committed by GitHub
parent 62ad2403a0
commit b39cb1229a
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48
dll/win32/shlwapi/ordinal.c
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@ -4426,14 +4426,62 @@ VOID WINAPI ColorRGBToHLS(COLORREF cRGB, LPWORD pwHue,
*pwSaturation = wSaturation;
}
#ifdef __REACTOS__
typedef struct tagLOGPALETTEMAX /* Compatible with LOGPALETTE but extended */
{
WORD palVersion;
WORD palNumEntries;
PALETTEENTRY palPalEntry[256];
} LOGPALETTEMAX, *PLOGPALETTEMAX;
#endif
/*************************************************************************
* SHCreateShellPalette [SHLWAPI.@]
*/
#ifdef __REACTOS__
HPALETTE WINAPI
SHCreateShellPalette(_In_opt_ HDC hdc)
{
HDC hdcMem;
HPALETTE hHalftonePalette;
LOGPALETTEMAX data;
const UINT nExtractCount = 10;
const UINT nSecondBlockStart = _countof(data.palPalEntry) - nExtractCount;
TRACE("(%p)\n", hdc);
/* Get the colors of the halftone palette */
hHalftonePalette = CreateHalftonePalette(hdc);
if (!hHalftonePalette)
return NULL;
data.palVersion = 0x300;
data.palNumEntries = GetPaletteEntries(hHalftonePalette, 0,
_countof(data.palPalEntry), data.palPalEntry);
DeleteObject(hHalftonePalette);
hdcMem = (hdc ? hdc : CreateCompatibleDC(NULL));
if (hdcMem)
{
/* The first 10 and last 10 entries in the system colors are considered important */
GetSystemPaletteEntries(hdcMem, 0, nExtractCount, data.palPalEntry);
GetSystemPaletteEntries(hdcMem, nSecondBlockStart, nExtractCount,
&data.palPalEntry[nSecondBlockStart]);
}
if (hdcMem && hdc != hdcMem)
DeleteDC(hdcMem);
/* Create a palette from the modified color entries */
return CreatePalette((PLOGPALETTE)&data);
}
#else
HPALETTE WINAPI SHCreateShellPalette(HDC hdc)
{
FIXME("stub\n");
return CreateHalftonePalette(hdc);
}
#endif
/*************************************************************************
* SHGetInverseCMAP (SHLWAPI.@)