void InvalidateRgn( HRGN hRgn, BOOL bErase = TRUE );
See InvalidateRgn in the Win32 SDK.
Remarks
Invalidates the client area within the specified region. Specifies a void return type, while the InvalidateRgn Win32 function always returns TRUE.
CWindow Overview | Class Members
See Also CWindow::Invalidate, CWindow::InvalidateRect, CWindow::ValidateRgn