EqualRgn

The EqualRgn function checks the two specified regions to determine whether they are identical. The function considers two regions identical if they are equal in size and shape.

BOOL EqualRgn(
  HRGN hSrcRgn1,  // handle to first region
  HRGN hSrcRgn2   // handle to second region
);
 

Parameters

hSrcRgn1

Handle to a region.

hSrcRgn2

Handle to a region.

Return Values

If the two regions are equal, the return value is nonzero.

If the two regions are not equal, the return value is zero. A return value of ERROR means at least one of the region handles is invalid.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Requires version 1.0 or later.
  Header: Declared in wingdi.h.
  Import Library: Use gdi32.lib.

See Also

Regions Overview, Region Functions, CreateRectRgn, CreateRectRgnIndirect