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BOOL BitBlt( 
  _In_ HDC   hdcDest, 
  _In_ int   nXDest, 
  _In_ int   nYDest, 
  _In_ int   nWidth, 
  _In_ int   nHeight, 
  _In_ HDC   hdcSrc, 
  _In_ int   nXSrc, 
  _In_ int   nYSrc, 
  _In_ DWORD dwRop
);

Parameters

hdcDest [in]
A handle to the destination device context.

nXDest [in]
The x-coordinate, in logical units, of the upper-left corner of the destination rectangle.

nYDest [in]
The y-coordinate, in logical units, of the upper-left corner of the destination rectangle.

nWidth [in]
The width, in logical units, of the source and destination rectangles.

nHeight [in]
The height, in logical units, of the source and the destination rectangles.

hdcSrc [in]
A handle to the source device context.

nXSrc [in]
The x-coordinate, in logical units, of the upper-left corner of the source rectangle.

nYSrc [in]
The y-coordinate, in logical units, of the upper-left corner of the source rectangle.

dwRop [in]
A raster-operation code. These codes define how the color data for the source rectangle is to be combined with the color data for the destination rectangle to achieve the final color.
The following list shows some common raster operation codes.