GetRgnBox
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