Il Thu, 14 Jan 2016 08:41:46 +0100 Jozef Molnar <jv.molnar@xxxxxxxxxxxxxx> scrisse:
> Dear subscribers,
>
> I want to create a custom widget derived from either GtkDrawingArea or
> GtkLayout (still do not know, which is better for my purpose - I need some
> advice).
> Nevertheless, if I derive my widget from GtkDrawingArea, I can draw using
> Cairo (the draw callback gets called) but I cannot receive mouse events. I
Hi Jozef,
GtkDrawingArea *can* handle mouse events. From its documentation:
To receive mouse events on a drawing area, you will need to
enable them with gtk_widget_add_events().
so I suspect you are missing that call in your testing code. E.g.
gtk_widget_add_events(drawing_area, GDK_POINTER_MOTION_MASK);
enables you to connect a callback to the "motion-notify-event"
signal of your drawing area.
Ciao.
--
Nicola
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