Hello, first, sorry for my english. my answer : i have to create an gtk+ interface who can display an image, zoom, get the x y and value of the pixel (on mouse over), and select a region (rectangle). For the image i had used GtkImage but whe can't draw (?) I had tryed to use GtkDrawingArea, I'm reading docs since days and days, I think there is something that I don't understand for instance (maybe it's so simple ? ;-) ) Can you tell me witch widget I have to use and how can I do that. Thank you for your help syl _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list