PathToRegion info  Overview  Group

The PathToRegion function creates a region from the path that is selected into the specified device context.

HRGN PathToRegion(

HDC hdc	// handle to device context
);

Parameters

hdc

Identifies a device context that contains a closed path.

Return Values

If the function succeeds, the return value identifies a valid region.

If the function fails, the return value is zero. To get extended error information, call GetLastError. GetLastError may return one of the following error codes:

ERROR_CAN_NOT_COMPLETE
ERROR_INVALID_PARAMETER
ERROR_NOT_ENOUGH_MEMORY

Remarks

The device context identified by the hdc parameter must contain a closed path.

After PathToRegion converts a path into a region, Windows discards the closed path from the specified device context.

See Also

BeginPath, EndPath, SetPolyFillMode