NAME

NtGdiCombineRgn  (WIN32U.@)

SYNOPSIS

 INT NtGdiCombineRgn
 (
  HRGN hDest,
  HRGN hSrc1,
  HRGN hSrc2,
  INT  mode
 )

DESCRIPTION

Combines two regions with the specified operation and stores the result in the specified destination region.

PARAMS

hDest [In] The region that receives the combined result.
hSrc1 [In] The first source region.
hSrc2 [In] The second source region.
mode [In] The way in which the source regions will be combined. See notes.

RETURNS

Success: NULLREGION - The new region is empty. SIMPLEREGION - The new region can be represented by one rectangle. COMPLEXREGION - The new region can only be represented by more than one rectangle.

Failure: ERROR.

NOTES

The two source regions can be the same region. The mode can be one of the following:

  RGN_AND - Intersection of the regions
  RGN_OR - Union of the regions
  RGN_XOR - Unions of the regions minus any intersection.
  RGN_DIFF - Difference (subtraction) of the regions.

IMPLEMENTATION

Declared in "ntgdi.h". https://source.winehq.org/source/include/ntgdi.h

Implemented in "dlls/win32u/region.c". https://source.winehq.org/source/dlls/win32u/region.c

Debug channel "region".


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