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 |