Re: Mouse wheel on gtk2

[Tristan Van Berkom <vantr touchtunes com>]

mquezada nlxcorp com wrote:

> I'm using segments of code I wrote in gtk-1.2 that use the mousewheel on a
> drawing area to zoom in and out. I can get all three (L M R) button events
> to respond properly but I can't get an event for the wheel up or down. I
> should mention that the wheel does work with other apps so I know the mouse
> driver is configured properly. It even works on the tool built with gtk-1.2
> that I mentioned.
>
> Currently this are the events I have tied to my drawing area:
>
> ntri_view_drawingarea = gtk_drawing_area_new ();
> gtk_widget_set_events (ntri_view_drawingarea, GDK_EXPOSURE_MASK |
>                                                GDK_POINTER_MOTION_MASK |
>                                                GDK_BUTTON1_MOTION_MASK |
>                                                GDK_BUTTON2_MOTION_MASK |
>                                                GDK_BUTTON3_MOTION_MASK |
>                                                GDK_BUTTON_PRESS_MASK |
>                                                GDK_BUTTON_RELEASE_MASK |
>                                                GDK_KEY_PRESS_MASK);
>
> Any help will be greatly appreciated.
>
> Thanks.

Try adding:
   GDK_SCROLL_MASK

And attatching to "scroll-event".


Cheers,
                       -Tristan