Re: How to send user_data into callback function by glade only?
在2009-04-11，Tadej Borovšak tadeb...@gmail.com 写道：
2009/4/11 donglongchao donglongc...@163.com:
Hi all,
I have a question using glade(3.4.5).
In the signal tab,there is a item user_data.I want to know how to fill
and what to fill to send the data I filled into the callback function,
without using gtk_signal_connect(..) or something like that,just and
only use glade itself and glade_xml_signal_autoconnect().
I do not know if i should define the data before I fill and send it,and
where should I define my data? global scope? statics
one?I even do not know if i could send data defined by myself.
Remember just and only use glade itself and glade_xml_signal_autoconnect().
It is a simple question ,but confused me several days,will any one
help?Thanks.
Wish you happy.
Dong
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Hello.
You can only pass other objects created in glade via this field. You
cannot pass structs, integers ...
--
Tadej Borovšak
tadeb...@gmail.com
tadej.borov...@gmail.com
Hi,
I fill the item with myspinbutton and I connect clicked signal of a button
to callback function like follows.
void on_checkbutton1_clicked(GtkButton *checkbutton1,gpointer user_data)
{
gchar spin[10];
GtkWidget * window;
if (gtk_toggle_button_get_active(checkbutton1))
{window=gtk_message_dialog_new(NULL,GTK_DIALOG_MODAL |\
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_INFO,
GTK_BUTTONS_OK_CANCEL,g_ascii_dtostr(spin,10,gtk_spin_button_get_value((GtkSpinButton*)(user_data;
g_signal_connect(window,response,
gtk_widget_destroy,NULL);
gtk_widget_show (window);}
}
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 `GTK_IS_TOGGLE_BUTTON
(toggle_button)' failed.
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.
Wish you happy.
Dong
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