GetRgnBox info  Overview  Group

The GetRgnBox function retrieves the bounding rectangle of the specified region.

int GetRgnBox(

HRGN hrgn,	// handle of a region
LPRECT lprc	// address of structure that receives bounding rect.
);

Parameters

hrgn

Identifies the region.

lprc

Points to a RECT structure that receives the bounding rectangle.

Return Values

The return value specifies the region’s complexity. It can be one of the following values:

Value	Meaning
NULLREGION	Region is empty.
SIMPLEREGION	Region is a single rectangle.
COMPLEXREGION	Region is more than a single rectangle.

If the hrgn parameter does not identify a valid region, the return value is zero.

See Also

RECT