在 pyGTK 中使用 visibility_notify 事件

import pygtk
pygtk.require('2.0')
import gtk

class EventBoxExample:
    def __init__(self):
        window = gtk.Window(gtk.WINDOW_TOPLEVEL)
        window.set_title("Test")
        window.connect("destroy", lambda w: gtk.main_quit())
        window.set_border_width(10)

        # 创建一个 EventBox 并将其添加到顶级窗口
        self.event_box = gtk.EventBox()

        window.add(self.event_box)        
        self.event_box.show()

        # 捕获所有事件
        self.event_box.set_events(gtk.gdk.ALL_EVENTS_MASK)

        # 连接事件
        self.event_box.connect ("map_event", self.Map)
        self.event_box.connect ("unmap_event", self.unMap)
        self.event_box.connect ("configure_event", self.Configure)
        self.event_box.connect ("expose_event", self.Expose)
        self.event_box.connect ("visibility_notify_event", self.Visibility)
        self.event_box.connect ("key_press_event", self.KeyPress)
        self.event_box.connect ("button_press_event", self.ButtonPress)
        self.event_box.connect ("button_release_event", self.ButtonRelease)
        self.event_box.connect ("motion_notify_event", self.MouseMotion)
        self.event_box.connect ("destroy", self.Destroy) 
        self.event_box.connect ("enter_notify_event", self.Enter)
        self.event_box.connect ("leave_notify_event", self.Leave)
        self.event_box.connect ("delete_event", self.Destroy)

        window.show()

    def Map (self, *args):
        print("Map ", args)        
        return True

    def unMap (self, *args):
        print("unMap ", args)        
        return True

    def Configure (self, *args):
        print("Configure")
        return True

    def Expose (self, *args):
        print("Expose")
        return True

    def Visibility (self, *args):
        print("Visibility")
        return True

    def KeyPress (self, *args):
        print("KeyPress")
        return True

    def ButtonPress (self, *args):
        print("ButtonPress")
        return True

    def ButtonRelease (self, *args):
        print("ButtonRelease")
        return True

    def MouseMotion (self, *args):
        print("MouseMotion")
        return True

    def Enter (self, *args):
        print("Enter")
        self.event_box.grab_focus ()
        return True

    def Leave (self, *args):
        print("Leave")
        return True

    def Destroy (self, *args):
        print("Destroy")

def main():
    gtk.main()
    return 0

if __name__ == "__main__":
    EventBoxExample()
    main()