Called by an in-place active, windowless object to determine if it still has the mouse capture or not.
HRESULT GetCapture(void);
 As an alternative to calling this method, the object can cache information about whether it has the mouse capture or not.
  Windows NT: Use version 4.0 or later. New for OC96.
  Windows: Use Windows 95 or later. New for OC96.
  Windows CE: Unsupported.
  Header: Declared in ocidl.h.