wxPython – GetSubMenu() function in wx.MenuItem

In this article we are going to learn about GetSubMenu() function associated with the class wx.MenuItem in wxPython. GetSubMenu() function returns the submenu associated with the menu item, or None if there isn’t one. No arguments are needed in GetSubMenu() function.

Syntax:

wx.MenuItem.GetSubMenu(self)

Parameters:

No parameters are needed in GetSubMenu() function.

Return Type:

wx.Menu

Code Example:

Python3

import wx


class Example(wx.Frame):

    def __init__(self, *args, **kwargs):
        super(Example, self).__init__(*args, **kwargs)

        self.InitUI()

    def InitUI(self):

        menubar = wx.MenuBar()

        fileMenu = wx.Menu()

        sm = wx.Menu()
        sm.Append(wx.ID_ANY, 'Submenu item 1')
        sm.Append(wx.ID_ANY, 'Submenu item 2')
        sm.Append(wx.ID_ANY, 'Submenu item 3')
        self.st = wx.StaticText(self, label ="", pos =(20, 20), style = wx.ALIGN_LEFT)
        item = wx.MenuItem(fileMenu, 1, '&Check\tCtrl + c', helpString ="Check Help")
        item.SetSubMenu(sm)
        fileMenu.AppendMenu(wx.ID_ANY, 'I&mport', sm)
        # get submenu
        s = item.GetSubMenu()
        # get total sub menu item
        n = s.MenuItemCount
        # print total sub menu item
        print(n)
        self.st.SetLabel(str(n)+" total submenu items")
        menubar.Append(fileMenu, '&File')
        self.SetMenuBar(menubar)

        self.SetSize((350, 250))
        self.SetTitle('Submenu')
        self.Centre()




def main():

    app = wx.App()
    ex = Example(None)
    ex.Show()
    app.MainLoop()


if __name__ == '__main__':
    main()

Output:

3

Output: