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Grabber::isDevValid Method |
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| Checks whether the video capture device associated with this object still exists. A video capture device may become invalid at any time (e.g. if the device has been unplugged). | ||
| Syntax: | bool isDevValid() const; |
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| Return value: | true, if a device is associated with this object and present in the system, false otherwise. |
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| See also: | Grabber, Grabber::isDevOpen | |
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