> * Ctrl + mouse click works with buttons 1, 2, 3 but not with 4 and 5 (wheel). > In > SoundForge the wheel zooms horizontally, and ctrl+wheel zooms vertically. Is > it > a X, gtk, gtk-guile or a snd bug? > * I don't know how to handle double-click... is it possible?
In Snd, a mouse click can be handled with the mouse-click-hook: (add-hook! mouse-click-hook (lambda (snd chn button state x y axis) ...)) where "button" is an integer, and "state" includes a bit (4) for the control key. So, (if (and (= button 5) (not (= (logand state 4) 0))) control-button-5-code) There's nothing built into Snd regarding buttons 4 and 5. Double clicks might be harder -- I don't think the mouse-click-hook has an easy way to tell that the current event represents a double click. You could get (and save) the event time, and look for a fast second event, or go down a level and set up event handlers directly in Gtk or Motif. Both toolkits have a double click time (milliseconds, if I remember right) to distinguish between a double click and a fast sequence of single clicks, and the event handler is passed the time of the mouse press. This sounds like a good example for the manual... _______________________________________________ Cmdist mailing list [email protected] http://ccrma-mail.stanford.edu/mailman/listinfo/cmdist
