NAME¶

CombineRgn (GDI32.@)

SYNOPSIS¶

INT CombineRgn
(
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 "windowsx.h". Implemented in "dlls/gdi32/region.c". Debug channel "region".