FrameRgn info Overview Group

The FrameRgn function draws a border around the specified region by using the specified brush.

BOOL FrameRgn(

HDC hdc,	// handle to device context
HRGN hrgn,	// handle to region to be framed
HBRUSH hbr,	// handle to brush used to draw border
int nWidth,	// width of region frame
int nHeight	// height of region frame
);

Parameters

hdc: Identifies the device context.
hrgn: Identifies the region to be enclosed in a border. The region’s coordinates are presumed to be in logical units.
hbr: Identifies the brush to be used to draw the border.
nWidth: Specifies the width, in logical units, of vertical brush strokes.
nHeight: Specifies the height, in logical units, of horizontal brush strokes.

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.