Kolory piksela na pozycji x y

Interesuje mnie 'czy' ewentualnie 'jak' pobrać w systemie rgb jakiego koloru jest piksel na pozycji x,y

The 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  nXPos,	// x-coordinate of pixel 
int  nYPos 	// y-coordinate of pixel 

);
Parameters

hdc

Identifies the device context.

nXPos

Specifies the logical x-coordinate of the pixel to be examined.

nYPos

Specifies the logical y-coordinate of the pixel to be examined.

Return Value

If 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.

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.

ok wiec co mam to po prostu zrobic o tak ?
Form1.ActiveForm.BackColor=GetColor(Screen, 1024, 268);