Sets the scissor rectangle.
HRESULT SetScissorRect( CONST RECT * pRect );
If the method succeeds, the return value is D3D_OK. If the method fails, the return value can be D3DERR_INVALIDCALL.
The scissor rectangle is used as a rectangular clipping region.
See Rectangles for further information on the use of rectangles in DirectX.
Header: Declared in D3d9.h.