◄CDC►                                         ◄Up► ◄Contents► ◄Index► ◄Back►
──Microsoft Foundation Classes──────────────────────────────────────────────
 
  int SelectClipRgn( CRgn* pRgn );
 
  Parameter   Description
 
  <pRgn>      Identifies the region to be selected.
 
  Remarks
 
  Selects the given region as the current clipping region for the
  specified device context. Only a copy of the selected region is used.
  The region itself can be selected for any number of other device
  contexts, or it can be deleted.
 
  The function assumes that the coordinates for the given region are
  specified in device units. Some printer devices support graphics at
  lower resolutions than text output to increase speed, but at the expense
  of quality. These devices scale coordinates for graphics so that one
  graphics device point corresponds to two or four true device points.
  This scaling factor affects clipping. If a region will be used to clip
  graphics, its coordinates must be divided down by the scaling factor. If
  the region will be used to clip text, no scaling adjustment is needed.
  The scaling factor is determined by using the GETSCALINGFACTOR printer
  escape.
 
  Return Value
 
  The region's type. It can be any one of the following values:
 
  Value           Meaning
 
  COMPLEXREGION   New clipping region has overlapping borders.
 
  ERROR           Device context or region handle is not valid.
 
  NULLREGION      New clipping region is empty.
 
  SIMPLEREGION    New clipping region has no overlapping borders.
 
  See Also
 
  ◄CDC::Escape►, ◄CRgn►, ◄::SelectClipRgn►
 
 
                                     -♦-