Re: button_release_event

[Paolo Costabel <paoloc pacbell net>]

Try to connect to the button_release_event of the canvas.

On Dec 26, 2004, at 2:14 PM, Jan wrote:

> Hello.
>
> I apologize for my importunity.
> But I can not find any eyeful information in documentation.
>
> I try to draw line from point where user press left mouse button.
>
> I have follows initialization code:
>
> GtkWidget *topLevelWindow=gtk_window_new(GTK_WINDOW_TOPLEVEL);
>
> g_signal_connect(G_OBJECT(topLevelWindow), "delete_event",
>                  G_CALLBACK(OnDelete), NULL);
> g_signal_connect(G_OBJECT(topLevelWindow),
>                  "destroy",  G_CALLBACK(OnDestroy),
>                  NULL);
> GtkWidget *canvas=gtk_drawing_area_new();
> g_signal_connect(G_OBJECT(canvas), "expose_event",
>                  G_CALLBACK(OnDraw), NULL);
> g_signal_connect(G_OBJECT(GTK_WINDOW(topLevelWindow)),
>                  "button_release_event", 
> G_CALLBACK(OnButtonReleaseEvent),
>                  NULL);
> gtk_container_add(GTK_CONTAINER(topLevelWindow), canvas);
> gtk_widget_show(canvas);
> gtk_widget_show(topLevelWindow);
>
> And have follow OnButtonReleaseEvent:
>
> gboolean OnButtonReleaseEvent(GtkWidget *widget, GdkEventExpose 
> *event, gpointer data)
> {
>   g_print("Release Event!\n");
>   return TRUE;
> }
>
> I clicked and clicked on window of my application
> and there are no "Release Event!".
>
> Why so?
>
>
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