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GetNearestPaletteIndex info  Overview  Group

The GetNearestPaletteIndex function retrieves the index for the entry in the specified logical palette most closely matching a specified color value.

UINT GetNearestPaletteIndex(

    HPALETTE hpal,

// handle of logical color palette

    COLORREF crColor 

// color to be matched

   );

Parameters

hpal
Identifies a logical color palette.
crColor
Specifies a color to be matched.

Return Values

If the function succeeds, the return value is the index of an entry in a logical palette.

If the function fails, the return value is CLR_INVALID. To get extended error information, call GetLastError.

Remarks

An application can determine whether a device supports palette operations by calling the GetDeviceCaps function and specifying the RASTERCAPS constant.

If the given logical palette contains entries with the PC_EXPLICIT flag set, the return value is undefined.

See Also

GetDeviceCaps, GetNearestColor, GetPaletteEntries, GetSystemPaletteEntries, COLORREF 

file: /Techref/os/win/api/win32/func/src/f35_12.htm, 2KB, , updated: 2000/4/7 11:19, local time: 2024/12/1 02:16,
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