Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)
CRgn::CopyRgn
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  int CopyRgn( CRgn* pRgnSrc );
 
  Parameter   Description
 
  <pRgnSrc>   Identifies an existing region.
 
  Remarks
 
  Copies the region defined by <pRgnSrc> into the CRgn object. The new
  region replaces the region formerly stored in the CRgn object. This
  function is a special case of ◄CombineRgn►.
 
  Return Value
 
  Specifies the type of the resulting region. It can be one of the
  following values:
 
  Value           Meaning
 
  COMPLEXREGION   New region has overlapping borders.
 
  ERROR           No new region created.
 
  NULLREGION      New region is empty.
 
  SIMPLEREGION    New region has no overlapping borders.
 
  See Also
 
  ◄CRgn::CombineRgn►, ◄::CombineRgn►
 
 
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