func (capture *Capture) GrabFrame() bool {
	rv := C.cvGrabFrame((*C.CvCapture)(capture))
	return (rv != C.int(0))
}
func (capture *Capture) GrabFrame() bool {
	rv := C.cvGrabFrame((*C.CvCapture)(capture))
	return (rv != C.int(0))
}
func ( capture * Capture ) GrabFrame ( ) bool { rv := C . cvGrabFrame ( ( * C . CvCapture ) ( capture ) ) return ( rv != C . int ( 0 ) ) }
/* grab a frame, return 1 on success, 0 on fail.
this function is thought to be fast               */
/ * grab a frame return 1 on success 0 on fail . this function is thought to be fast