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SetPixel info  Overview  Group

The SetPixel function sets the pixel at the specified coordinates to the specified color.

COLORREF SetPixel(

    HDC hdc,

// handle of device context

    int X,

// x-coordinate of pixel

    int Y,

// y-coordinate of pixel

    COLORREF crColor 

// pixel color

   );

Parameters

hdc
Identifies the device context.
X
Specifies the x-coordinate, in logical units, of the point to be set.
Y
Specifies the y-coordinate, in logical units, of the point to be set.
crColor
Specifies the color to be used to paint the point.

Return Values

If the function succeeds, the return value is the RGB value that the function sets the pixel to. This value may differ from the color specified by crColor; that happens when an exact match for the specified color cannot be found.

If the function fails, the return value is -1. To get extended error information, call GetLastError.

Remarks

The function fails if the pixel coordinates lie outside of the current clipping region.

Not all devices support the SetPixel function. For more information, see GetDeviceCaps.

See Also

GetDeviceCaps, GetPixel, SetPixelV 

file: /Techref/os/win/api/win32/func/src/f80_14.htm, 2KB, , updated: 2000/4/7 11:19, local time: 2024/12/1 00:53,
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