GetRgnBox function (wingdi.h)
The GetRgnBox function retrieves the bounding rectangle of the specified region.
Syntax
int GetRgnBox(
[in] HRGN hrgn,
[out] LPRECT lprc
);
Parameters
[in] hrgn
A handle to the region.
[out] lprc
A pointer to a RECT structure that receives the bounding rectangle in logical units.
Return value
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.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | wingdi.h (include Windows.h) |
| Library | Gdi32.lib |
| DLL | Gdi32.dll |