Re: How to send user_data into callback function by glade only?
- From: donglongchao <donglongchao 163 com>
- To: "Tristan Van Berkom" <tvb gnome org>
- Cc: gtk-app-devel-list gnome org
- Subject: Re: How to send user_data into callback function by glade only?
- Date: Thu, 16 Apr 2009 11:17:08 +0800 (CST)
2009-04-16ï"Tristan Van Berkom" <tvb gnome org> ï
On Tue, Apr 14, 2009 at 10:46 AM, donglongchao <donglongchao 163 com> wrote:
And I want to show the value of "myspinbutton" by pass its point to callback function.But every time I
click the button there is no response.Just left "(gtk_toggle_button_get_active): assertion
But if i do not pass the "&spinbutton", and the function only have one para(GtkButton *checkbutton1), it
works,no error,no warning.
I do not know why.Any one could help?Thanks.
With libglade, if you specify an object... it is like reffering to prehistoric
gtk_signal_connect_object(), which swaps your instance/user-data arguments
free-of-charge, allowing for direct hooking up of function calls from
i.e. connect to button1 "clicked", specify "window1" as the object, and then
just put "gtk_widget_hide" as the callback... you just wrote a button that
closes the window without any code...
Yeah its a little awkard an unclear... just forget about it ;-)
Maybe you did not understand me.
I mean when I use the callback function with two para(GtkButton *checkbutton1,gpointer user_data),
there is no response when I click the button, no messagesialog is created .Because There is an assertion
error when run function "gtk_toggle_button_get_active".So the programme can not run into the codes after this
The error is like this "(gtk_toggle_button_get_active): assertion `GTK_IS_TOGGLE_BUTTON
But if I use the function with only one para(GtkButton *checkbutton1),and I do not send "&spinbutton1" as a
the program runs very good ,and the messagediaog "window" is created and showed correctly.No such assertion
I do not know why. When sending user_data,must we by our hands only?Using g_signal_connect(......) or
something like that?
Can not use glade to achieve our goal?
Anyone help me?Thanks a lot.
Wish you happy.
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