On Thu, 2015-04-09 at 23:17 +0930, Roger Matthews wrote:
> Hi Paulo, or anybody else interested in helping,
> I've read chapter 2 of Foundations of GTK+ Development concerning
> signals and callback functions as suggested (see below) but am still
> getting this error:
Hello,
I think you used wron
Hi Paulo, or anybody else interested in helping,
I've read chapter 2 of Foundations of GTK+ Development concerning signals and
callback functions as suggested (see below) but am still getting this error:
(page90v2.exe:2289): Gtk-CRITICAL **: gtk_spin_button_get_value: assertion
'GTK_IS_SPIN_BU
Hello Roger.
I think you misunderstand the concept of callback functions. In your
example there is no appropriated callback function to deal with the changes
of spin button. And another thing, the 3rd parameters to register a
callback function must be a pointer.
I suggest to take a look at chapte
