Re: newbie and ask show window

Le mercredi 10 mai 2006 �3:23 +0700, Ade Amrillah a �it :
> hi all
> i'm newbie in gtk+. i was create simple programme for testing
> "gtk_widget_show()" function.
> my program has tow windows
> first window i put button for call second window, i develop GUI with
> Glade and anjuta for code. 
> my code are
> void on_openbtn_clicked (GtkButton  *button,gpointer user_data)
> {
>      GtkWidget * window2;
>     window2=create_window2();
>     gtk_widget_show(window2);
> }
> and it's working. but if i press button again  a new window (window2)
> will be create. 
> i want just one window created if i press again button. 
> ask:  how i change the programme for show window for only one show?
> for   illustrated:
> i use gedit and i click preferences (menu edit->preperences) just one
> window showed  and if i click again did not show again new window.
> sorry for my english :) 

Use something like:

GtkWidget * window2 = NULL;
void on_openbtn_clicked (GtkButton  *button,gpointer user_data)
    if (window2 != NULL)
 and add an event handler to reste window2 to NULL when the window is

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