This function sets the pixel at the specified coordinates to the specified color.
At a Glance
| Header file: | Wingdi.h |
| Windows CE versions: | 1.0 and later |
Syntax
COLORREF SetPixel(HDC hdc, int X, int Y, COLORREF crColor);
Parameters
hdc
[in] Handle to the device context.
X
[in] Specifies the x-coordinate, in logical units, of the point to be set.
Y
[in] Specifies the y-coordinate, in logical units, of the point to be set.
crColor
[in] Specifies the color to be used to paint the point.
Return Values
The RGB value that the function sets the pixel to indicates success. This value may differ from the color specified by crColor; that happens when an exact match for the specified color cannot be found. –1 indicates failure. 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