Re: Quick newbie question

[kilobug freesurf fr (Gaël Le Mignot)]

Hello Ben!

Tue, 04 Mar 2003 21:12:33 +0000, you wrote: 

 > Hey everyone,
 > I am just starting to get into GTK+ programming, So far I am doing
 > pretty well but I am stuck at a certain point. I want to have a text
 > entry and then a button to submit the information - lets just say when
 > you hit submit, it pops up a new window that shows the information you
 > had in the box. My problem is that I can't find out how to access the
 > data from the text entry, once the "clicked" signal is received from
 > the button. Can anyone help me out here?

Sure. There are two ways to do that: either give the address of the entry
as the user parameter of the callback (the gpointer data), or use the
g_object_set_data on the button, like 
g_object_set_data (G_OBJECT (button), "text-entry", entry); and then gets
the data via g_object_get_data.

The first one is a bit faster, but can be hard to use if you need more
than one parameter in the button's callback (you'll have then to you a
struct, malloc it and then free it...). That's why I often tend to use
the second solution if it's not on a perf-critical part of the program
(usually, something that happens only once when an user clicks is not).

-- 
Gael Le Mignot "Kilobug" - kilobug nerim net - http://kilobug.free.fr
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