<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> </head> <body text="#000000" bgcolor="#ffffff"> Hi all, i need some help for the following case: i am drawing on a gtk drawing area "expose" event using cairo. I draw several layers (images, from png files) with transparency (alpha) and at the end, over them, i draw some circular buttons. All these layers + buttons are "cairo_surface_t". I am actually "drawing" the buttons since i can't create them as real gtk buttons over the drawing area. I am looking for a way to know, after the left mouse "button click" event happen, what is the surface(button) i am over, to simulate a button-click event. I could keep track of buttons images coordinates/size, but these images have a rectangular shape, so click will work also in the corners, outside of the round button shape, and this is not desired. Any help/suggestion is really appreciated. many thanks regards angelo <div class="moz-signature">-- <pre> </pre> </div> </body> </html>