Re: Keyevent

[Paolo Costabel <paolo zebradevelopment com>]

You need to add


gtk_widget_set_events(janela, GDK_BUTTON_RELEASE_MASK);

Also, button release refers to the mouse. You cannot use a key handler 
for it.

Try this:

gint e_button_up (GtkWidget *widget,
    GdkEventButton  *event,
    gpointer         user_data)
{
   printf("button %d UP \n", event->button);
   return TRUE;
}

Cheers,

José Maria Silveira Neto wrote:

> Hi, I'm developing a game with SDL and GTK.
> I having a problem because I only can use key_press_event but not
> button_release_event.
> I wrote a small code to show my problem:
> ---------------------------------------------------------------------------------------------------------------
> #include<gtk/gtk.h>
>
> gint e_keyup (GtkWidget *widget, GdkEventKey *event){
>         printf("%d UP \n", event->keyval);
>         return TRUE;
> }
>
> gint e_keydown (GtkWidget *widget, GdkEventKey *event){
>         printf("%d DOWN \n", event->keyval);
>         return TRUE;
> }
>
> int main(gint arc, gchar **argv){
>         GtkWidget *janela;
>         
> 	gtk_init(&arc, &argv); 
>
>         janela = gtk_window_new(GTK_WINDOW_TOPLEVEL);
>         gtk_window_set_title(GTK_WINDOW(janela),"Key Event");
>         gtk_signal_connect(GTK_OBJECT(janela), "delete_event",
> GTK_SIGNAL_FUNC(gtk_main_quit), 0);
>         g_signal_connect (G_OBJECT (janela), "destroy", G_CALLBACK
> (gtk_main_quit), NULL);
>         gtk_signal_connect(GTK_OBJECT(janela),
> "key_press_event",GTK_SIGNAL_FUNC(e_keydown), 0);
>         gtk_signal_connect(GTK_OBJECT(janela),
> "button_release_event",GTK_SIGNAL_FUNC(e_keyup), 0);
>         gtk_widget_show(janela);
>         gtk_main();
>         
> }
> ---------------------------------------------------------------------------------------------------------------
> Salve it as key.c and compile it:
> $gcc key.c -o key `pkg-config --libs --cflags gtk+-2.0`
>
> You'll see that only key down event are occurring.
>
> Does anybody know how to make button_release_event works?
>
> Thanks a lot.
>
> Fortaleza-CE, Brazil.
> Silveira Neto
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