Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)
CWnd::ScreenToClient
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  void ScreenToClient( LPPOINT lpPoint ) const;
  void ScreenToClient( LPRECT lpRect ) const;
 
  Parameter   Description
 
  <lpPoint>   Points to a CPoint or ◄POINT► structure that contains the
              screen coordinates to be converted.
 
  <lpRect>    Points to a CRect or ◄RECT► structure that contains the
              screen coordinates to be converted.
 
  Remarks
 
  Converts the screen coordinates of a given point or rect on the display
  to client coordinates.
 
  The ScreenToClient member function uses CWnd and the screen coordinates
  given in <lpPoint> or <lpRect> to compute client coordinates, and then
  replaces the screen coordinates with the client coordinates. The new
  coordinates are relative to the upper-left corner of the CWnd client
  area.
 
  The ScreenToClient formula assumes the given point is in screen
  coordinates.
 
  See Also
 
  ◄CWnd::ClientToScreen►, ◄::ScreenToClient►
 
 
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