Re: GTK 2.2 compatibility and GTK 2.4+ widgets

[Paul Pogonyshev <pogonyshev gmx net>]

Gabriele Greco wrote:
> There is a way to know if a widget is available only in a particular 
> version of GTK 2.x?
>
> I'm developing an application on a GTK 2.4 machine with the target to be 
> able to run it also on GTK 2.2, since  most distributions of the past 
> two years still has that installed.
>
> It's the second time I have to disable a feature I've added since I've 
> discovered (compiling on a GTK 2.2 machine) that the widget doesn't 
> exists on that! (gtk_combo_entry, gtk_color_button...)
>
> It will be nice to have in the widget documentation the GTK version in 
> whitch a particular widget has been introduced.

It is always mentioned in documentation.

I use widgets from 2.4, but I have #if'ed variants in my source code
so that it can work on 2.0 and up (though a few really minor things
disappear on 2.0 and 2.2, because they were too difficult to backport
for the little gain.)

About GtkColorButton---I have it included in the source of my project.
The whole file is conditioned on GTK+ version being less than 2.4, so
on 2.4 my program simply uses the library version.

Paul