2009/3/11 frederico schardong <frede....@gmail.com>:
>>void my_callback_function (GtkButton *widget, gpointer user_ptr);
>>
>>...
>>
>>g_signal_connect( G_OBJECT( widget), "clicked",
>> G_CALLBACK( my_callback_function), user_ptr );
>>
>>
>>void my_callback_function (GtkButton *widget, gpointer user_ptr) {
>>
>> ...
>>}
>>
>>
>>http://library.gnome.org/devel/gtk/unstable/GtkButton.html
>
> but how I can pass to my_callback_function the gtk_drawing_area? I
> know about the g_signal_connect.. but I not know how pass another
> widget, without the widget being passed the first parameter of
> function..
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>
Hello.
Just pass your drawing area as a last parameter to g_signal_connect function.
Simple code would look like:
---------- CODE -----------
int
main( int argc, char **argv )
{
GtkWidget *button = gtk_button_new();
GtkWidget *draw = gtk_drawing_area_new();
g_signal_connect( G_OBJECT( button ), "clicked",
G_CALLBACK( cb_clicked ), draw );
/* More code here */
}
/* Callback function */
static void
cb_clicked( GtkButton *button,
GtkWidget *draw )
{
/* Code here to save your work */
}
------- /CODE ----------
--
Tadej Borovšak
tadeb...@gmail.com
tadej.borov...@gmail.com
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