Greetings,
I'd like to create a Gtk widget that is pluggable into a
GtkScrolledWindow. For that it has to have a handler for the
gtk_widget_set_scroll_adjustments signal, and there lies my problem.
GtkWidget (according to gth gtk+-2.0.vapi file, vala 0.1.7 ) does not
define such a signal, instead it has a simple function of that name.
GtkLayout does have such a signal, its part of its class definition. So
I went ahead and copied the signal declaration into my class.
I then created the attached test program, and here's what the compiler
says to it:
SignalProblem.c: In function
'_scrollable_area_on_set_scroll_adjustments_scrollable_area_set_scroll_adjustments':
SignalProblem.c:15: warning: passing argument 2 of
'scrollable_area_on_set_scroll_adjustments' from incompatible pointer
type
(SignalProblem:2316): Gtk-WARNING **: gtk_scrolled_window_add(): cannot
add non scrollable widget use gtk_scrolled_window_add_with_viewport()
instead
So I had a look at the C function with that very long name:
static gboolean
_scrollable_area_on_set_scroll_adjustments_scrollable_area_set_scroll_adjustments
(ScrollableArea* sender, GtkAdjustment* a, GtkAdjustment* b,
gpointer self) {
return scrollable_area_on_set_scroll_adjustments (self, sender, a);
}
Something is very wrong here, since one of the adjustments had been
silently dropped ... Could somebody please explain to me how to handle
this? I'm a bit lost, and every hint would be appreciated ...
Best regards,
mfg
Attachment:
SignalProblem.vala
Description: Binary data