Attaching a double-click event to a shortcut

Question

How can I tag an event with a click? I tried GtkEventBox but I had no luck.

Answer 1

Connect to the button-press-event signal in the EventBox.

Answer 2

Gtk # distinguishes Widgets and Containers. Most widgets hosted on the Gtk # form will NOT receive mouse click events. To receive a mouse event, you need to place the widget inside a specific container - for example, EventBox:

• Add an EventBox formula to the form. You can place it behind other widgets or, since it does not appear, unless you specifically select it (or change its background color).

• Place your tag widget inside this EventBox. Note that the label will receive the shape and size of the EventBox.

• Add to this EventBox the “ButtonPressEvent” signal from the “Common Widget Signals”.

If you need to identify the button that was pressed during the processing of this event, use the uint value in: args.Event.Button usually “1” will be the left mouse button, “2” will be the center button and “3”, the right button (“2” can also be by pressing the left and right buttons).

Answer 3

2019-04-17 Update:

ptomato is right here, GtkLabel is one of the exceptions that really requires an event window, so you must connect to the button-press-event signal of button-press-event window. For other widgets, the install / add event APIs in my original answer should still be relevant.

Original (wrong) answer:

Connect to the button click event signal, but directly to GtkLabel. I would say that you do not need a set of events here, since GtkLabel already inherits this signal from GtkWidget. To activate GtkLabel to receive these events, you must first call gtk_widget_set_events or gtk_widget_add_events and add sensitivity to the GDK_BUTTON_PRESS_MASK event.

Answer 4

You don't seem to need an EventBox at all: since the problem is that the labels do not have any X11 window connected, just give it one with set_has_window(True) ! The following works for me:

  self.label = Gtk.Label() self.label.set_has_window(True) self.label.set_events(Gdk.EventMask.BUTTON_PRESS_MASK) self.label.connect("button-press-event", self.click_label) 

The documentation says that it should only be used to implement widgets - but hey, it works. Who cares about the "must"?