> I built a GUI that has a canvas for rendering OpenGL based graphics (and it
> works fine). I would like to be able to obtain the screen coordinates of a
> point (on the canvas) where the mouse button is clicked. Please let me know
> if you have any good suggestion or know any routine that would handle this
> task.
Enable the ButtonPress event (or ButtonRelease event, as you prefer)
with fl_add_canvas_handler().
Refer to the manual and a good Xlib reference (for discussion of the
ButtonPress/ButtonRelease events).
spl
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