# imgViewer2 Plugin - custom onClick callback example This example demonstrates the widget with a custom "onClick" callback. In this case clicking on the image will show the page pixel coordinates, image pixel coordinates and relative image coordinates (relative image coordinates range from 0,0 to 1,1 where 0,0 is the top-left corner and 1,1 is the bottom-right corner of the image) in a modal dialog. Zoom in and out using the mousewheel, +/- controls, double click/tap or hold the shift key and drag out a rectangle. Left mouseclick and drag to pan. On touch enable devices pinch gestures can be used to zoom in and out and tap and drag to pan around. Resize the window and try again