function mypreview_fcn(obj,event,himage) % Example update preview window function. % Get timestamp for frame. timestr = event.Timestamp; % Get handle to text label uicontrol. ht = getappdata(himage,'HandleToTimestampLabel'); % Set the value of the text label. set(ht,'String',timestr); % Display image data. set(himage, 'CData', event.Data)