Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
Hi I would like to be able to place my cursor over a picture in a draw widget, tap the left mouse button and a square of n x n (defined in software) white pixels drawn on the picture and all x and y coordinate values sent to an array. I have selected the BUTTONS_EVENTS keyword in the draw widget and used the WSet command to make it the current graphic window but what else?? How do I use the event structure?? BTW thanks to all who have responded to my embarrasingly simple to answer questions before. Cheers David