AnalogChannelItem::isValid Method |
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| Checks whether this object is valid. | ||
| Syntax: | bool isValid() const; |
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| Return value: | true, if the input channel is valid, false otherwise. |
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| Remarks: | If the video capture device does not support multiple input channels or, if an error occurred, a call to Grabber::getInputChannel returns an invalid object. |
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| See also: | AnalogChannelItem | |