IC Imaging Control C++: Grabber::isDevOpen Method | Technical Documentation

Grabber::isDevOpen Method
Checks whether a video capture device is opened.
Syntax:		bool isDevOpen() const;
Return value:		true, if a device is associated with this object, false otherwise.
Remarks:		Checks whether a video capture device is associated with this object. If the device was opened with Grabber::openDev and has become invalid in the meantime (e.g. the device has been unplugged), this method will still return true. The Grabber::isDevValid method can be used to determine whether the video capture device is accessible.
See also:		Grabber, Grabber::closeDev, Grabber::isDevValid, Grabber::openDev