User`s guide

4 Defining Your Adaptor Class
4-4
Pure Virtual Function Description with Declaration
getNumberOfBands() Returns the number of bands used in the returned image data — see
“Specifying Image Dimensions” on page 5-5.
virtual int getNumberOfBands() const;
openDevice() Opens a connection with the device, preparing it for use — see
“Opening and Closing Connection with a Device” on page 5-10.
virtual bool openDevice();
startCapture() Starts retrieving frames from the device — see “Starting and Stopping
Image Acquisition” on page 5-15.
virtual bool startCapture();
stopCapture() Stops retrieving frames from the device — see “Suggested Algorithm
for stopCapture()” on page 5-17.
virtual bool stopCapture();