PaintRgn

The PaintRgn function fills a region by using the current brush for the given device context.

hdc

Identifies the device context that contains the region to be filled.

hrgn

Identifies the region to be filled. The coordinates for the given region are specified in device units.

The return value is nonzero if the function is successful. Otherwise, it is zero.

The following example uses the current brush for a device context to fill an elliptical region:

HDC hdc;
HRGN hrgn;

hrgn = CreateEllipticRgn(10, 10, 110, 110);
SelectObject(hdc, hrgn);
PaintRgn(hdc, hrgn);

DeleteObject(hrgn);