COleControl::InvalidateRgn

Invalidates the container window's client area within the given region.

void InvalidateRgn( 
   CRgn* pRgn,
   BOOL bErase = TRUE  
);

Parameters

  • pRgn
    A pointer to a CRgn object that identifies the display region of the OLE object to invalidate, in client coordinates of the containing window. If this parameter is NULL, the extent is the entire object.

  • bErase
    Specifies whether the background within the invalidated region is to be erased. If TRUE, the background is erased. If FALSE, the background remains unchanged.

Remarks

This can be used to redraw windowless controls within the container. The invalidated region, along with all other areas in the update region, is marked for painting when the next WM_PAINT message is sent.

If bErase is TRUE for any part of the update region, the background in the entire region, not just in the given part, is erased.

Requirements

Header: afxctl.h

See Also

Reference

COleControl Class

Hierarchy Chart