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Coba anda lihat di WINAPI.hlp untuk melihat deskripsinyaThe GetPixel function retrieves the red, green, blue (RGB) color value of the pixel at the specified coordinates. COLORREF GetPixel( HDC hdc, // handle of device context int XPos, // x-coordinate of pixel int nYPos // y-coordinate of pixel ); ParametershdcIdentifies the device context. nXPosSpecifies the logical x-coordinate of the pixel to be examined. nYPosSpecifies the logical y-coordinate of the pixel to be examined. Return ValuesIf the function succeeds, the return value is an RGB value. If the pixel is outside of the current clipping region, the return value is CLR_INVALID. RemarksThe 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. See AlsoGetDeviceCaps, SetPixel