GetPixel
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4/8/2010
This function retrieves the RGB color value of the pixel at the specified coordinates.
Syntax
COLORREF GetPixel(
HDC hdc,
int nXPos,
int nYPos
);
Parameters
- hdc
[in] Handle to the device context.
- nXPos
[in] Specifies the logical x-coordinate of the pixel to be examined.
- nYPos
[in] Specifies the logical y-coordinate of the pixel to be examined.
Return Value
The RGB value of the pixel indicates success. CLR_INVALID indicates that the pixel is outside of the current clipping region.
Remarks
The pixel must be within the boundaries of the current clipping region.
Not all devices support GetPixel. An application should call GetDeviceCaps to determine whether a specified device supports this function.
Requirements
| Header | windows.h |
| Library | coredll.lib |
| Windows Embedded CE | Windows CE 1.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |