diff options
Diffstat (limited to 'languages/pascal/app_templates/fpcgtk/main.pp')
-rw-r--r-- | languages/pascal/app_templates/fpcgtk/main.pp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/languages/pascal/app_templates/fpcgtk/main.pp b/languages/pascal/app_templates/fpcgtk/main.pp new file mode 100644 index 00000000..4ac4a3b4 --- /dev/null +++ b/languages/pascal/app_templates/fpcgtk/main.pp @@ -0,0 +1,84 @@ +program %{APPNAMELC}; + +{$mode objfpc} + +uses + glib,gdk,gtk; + +procedure hello(widget : pGtkWidget ; data: pgpointer ); cdecl; +begin + writeln('Hello World'); +end; + +function delete_event (widget : pGtkWidget ; event: pGdkEvent; data: pgpointer ): integer; cdecl; +begin + writeln('Delete Event Occurred'); + delete_event := ord(true); +end; + +procedure destroy(widget : pGtkWidget ; data: pgpointer ); cdecl; +begin + gtk_main_quit(); +end; + +var + window, button : pGtkWidget;//GtkWidget is the storage type for widgets + + +begin + // This is called in all GTK applications. Arguments are parsed + // from the command line and are returned to the application. + gtk_init (@argc, @argv); + + // create a new window + window := gtk_window_new (GTK_WINDOW_TOPLEVEL); + + // When the window is given the "delete_event" signal (this is given + // by the window manager, usually by the 'close' option, or on the + // titlebar), we ask it to call the delete_event () function + // as defined above. The data passed to the callback + // function is NULL and is ignored in the callback function. + gtk_signal_connect (pGTKOBJECT (window), 'delete_event', + GTK_SIGNAL_FUNC (@delete_event), NIL); + + + // Here we connect the "destroy" event to a signal handler. + // This event occurs when we call gtk_widget_destroy() on the window, + // or if we return 'FALSE' in the "delete_event" callback. + gtk_signal_connect (pGTKOBJECT (window), 'destroy', + GTK_SIGNAL_FUNC (@destroy), NULL); + + // Sets the border width of the window. + gtk_container_set_border_width (GTK_CONTAINER (window), 10); + + // Creates a new button with the label "Hello World". + button := gtk_button_new_with_label ('Hello_World'); + + // When the button receives the "clicked" signal, it will call the + // function hello() passing it NULL as its argument. The hello() + // function is defined above. */ + gtk_signal_connect (pGTKOBJECT (button), 'clicked', + GTK_SIGNAL_FUNC (@hello), NULL); + + // This will cause the window to be destroyed by calling + // gtk_widget_destroy(window) when "clicked". Again, the destroy + // signal could come from here, or the window manager + gtk_signal_connect_object (pGTKOBJECT (button), 'clicked', + GTK_SIGNAL_FUNC (@gtk_widget_destroy), + pGTKOBJECT(window)); + + // This packs the button into the window (a gtk container). + gtk_container_add (GTK_CONTAINER (window), button); + + // The final step is to display this newly created widget. + gtk_widget_show (button); + + // and the window + gtk_widget_show (window); + + // All GTK applications must have a gtk_main(). Control ends here + // and waits for an event to occur (like a key press or + // mouse event). + gtk_main (); + +end. |