WinExcludeUpdateRegion - Parameters

hps (HPS) - input

Presentation-space handle whose clipping region is to be updated.

hwnd (HWND) - input

Window handle.

Handle of window whose update region is subtracted from the clipping region of the presentation space.

lComplexity (LONG) - returns

Complexity value.

This indicates the resulting form of the clipping area. The values and meanings of this parameter are defined in GpiCombineRegion.

Complexity of resulting region/error indicator:

RGN_NULL

Null Region
RGN_RECT
Rectangle region
RGN_COMPLEX
Complex region
RGN_ERROR
Error.

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