REFRESH statement
Purpose: The REFRESH statement updates a window's client area.
REFRESH is written as a macro utilizing the Win32 API function RedrawWindow.
RDW_ERASE | RDW_INVALIDATE | RDW_ALLCHILDREN | RDW_UPDATENOW
are set as the default redraw flags. For more information see the
the function RedrawWindow in your Win32 API help reference.
Syntax: REFRESH(hWnd) Parameters:
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