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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 

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