Tkinter: Change the menu bar and title bar colors

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梦如初夏
梦如初夏 2021-01-27 13:43

I would like to change the color of the menu bar and that of the title.

Here is the example of what I would like to have.

Is it possible?

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  • 2021-01-27 14:02

    To give an Exampel of what you trying to do:

    import tkinter as tk
    from tkinter import ttk
    
    class App(tk.Tk):
        def __init__(self):
            super().__init__()
            self.geometry("400x200")
            self.configure(background='black')
            self.overrideredirect(1)
            self.attributes("-topmost", True)
            
        def startMove(self,event):
            self.x = event.x
            self.y = event.y
    
        def stopMove(self,event):
            self.x = None
            self.y = None
    
        def moving(self,event):
            x = (event.x_root - self.x)
            y = (event.y_root - self.y)
            self.geometry("+%s+%s" % (x, y))
    
        def exit(self):
            self.destroy()
    
    
    def save():
        print ('save')
        return None
    def add():
        print('add')
        return None
    
      
    
    class MenuBar(tk.Frame):
        def __init__(self, master=None):
            tk.Frame.__init__(self, master, bd=1, relief='raised')
            self.master=master
            self.configure(background='black',
                           cursor='hand2')
    
            file = tk.Menubutton(self, text='File',
                                 background='black',
                                 foreground='white',
                                 activeforeground='black',
                                 activebackground='white'
                                 )
            file_menu = tk.Menu(file,tearoff=0)
            file_menu.add_command(label='save', command=save,
                                  background='black',
                                  foreground='white',
                                  activeforeground='black',
                                  activebackground='white'
                                  )
            
            file.config(menu=file_menu)
            file.pack(side='left')
    
            edit = tk.Menubutton(self, text='Edit',
                                 background='black',
                                 foreground='white',
                                 activeforeground='black',
                                 activebackground='white'
                                 )
            edit_menu = tk.Menu(edit,tearoff=0)
            edit_menu.add_command(label='add', command=add,
                                  background='black',
                                  foreground='white',
                                  activeforeground='black',
                                  activebackground='white'
                                  )
    
            edit.config(menu=edit_menu)
            edit.pack(side='left')
    
            close = tk.Button(self, text='X', command=lambda:root.exit(),
                              background='black',
                              foreground='white')
            close.pack(side='right')
    
    def show():
        print('show')
        return None
    def ex_it():
        print('exit')
        return None
    
    class MainFrame(tk.LabelFrame):
        def __init__(self, master=None):
            tk.LabelFrame.__init__(self, master, bd=1, relief='raised', text='MainFrame', background='black', foreground='white')
            self.master=master
            self.note = tk.Label(self, text='Your typed chars appear here:',
                                 background='black',
                                 foreground='white',
                                 )
            self.note.grid(column=0, row=0, columnspan=2, sticky='w')
            self.entry = ttk.Entry(self, style='My.TEntry')
            self.entry.grid(column=0,row=1,columnspan=3, sticky='ew')
            self.columnconfigure(0, weight=1)
            self.b_frame=tk.Frame(self, bg='black')
            self.b_frame.grid(column=0,row=2,sticky='w')
            self.sh_b = tk.Button(self.b_frame, text='Show', command=show)
            self.ex_b = tk.Button(self.b_frame, text='Exit', command=ex_it)
            self.sh_b.grid(column=0, row=0, sticky='w')
            self.ex_b.grid(column=1, row=0, sticky='w', padx=5)
    
    root = App()
    
    menubar = MenuBar(root)
    menubar.pack(side='top', fill='x')
    
    mainframe = MainFrame(root)
    mainframe.pack(fill='both', expand=1)
    
    menubar.bind("<Button-1>", root.startMove)
    menubar.bind("<ButtonRelease-1>", root.stopMove)
    menubar.bind("<B1-Motion>", root.moving)
    
    style = ttk.Style(root)
    style.element_create("plain.field", "from", "clam")
    style.layout("My.TEntry",
                 [('Entry.plain.field', {'children': [(
                     'Entry.background', {'children': [(
                         'Entry.padding', {'children': [(
                             'Entry.textarea', {'sticky': 'nswe'})],
                                           'sticky': 'nswe'})], 'sticky': 'nswe'})],
                                         'border':'2', 'sticky': 'nswe'})])
    style.configure("My.TEntry",
                     foreground="white",
                     fieldbackground="grey")
    
    root.mainloop()
    

    Have fun with it!

    Explaination

    First, I've created 3 objects using classes and they look like this:

    The Application / our window that inharets from Tk()

    class App(tk.Tk):
        def __init__(self):
            super().__init__()
    

    Then the Menubar which inharets from Frame and looks like:

    class MenuBar(tk.Frame):
        def __init__(self, master=None):
            tk.Frame.__init__(self, master, bd=1, relief='raised')
    

    and the MainFrame which inharets from the LabeFrame class of tkinter:

    class MainFrame(tk.LabelFrame):
        def __init__(self, master=None):
            tk.LabelFrame.__init__(self, master, bd=1, relief='raised', text='MainFrame', background='black', foreground='white')
    

    To learn more about classes and the init method [click] To understand the syntax self. [click]

    Let's take a closer look to the App:


    self.geometry("400x200")
    self.configure(background='black')
    self.overrideredirect(1)
    self.attributes("-topmost", True)
    
    • with the geometry method we are define the width=400 and height=200 in pixels.
    • Then we configure the background with the line:

    self.configure(background='black')
    
    • After this we use the overrideredirect method of tkinter which is clearly doing:

    Sets or gets the override redirect flag. If non-zero, this prevents the window manager from decorating the window. In other words, the window will not have a title or a border, and it cannot be moved or closed via ordinary means.

    • and we finally use the attributes method for Toplevels and set the argument topmost to true that does:

    (Windows) If set, this window is always placed on top of other windows. Note that in this release, this attribute must be given as “-topmost”.


    The biggest problem after using overrideredirect is that you can't move your window anymore, cause there is no border/Title- or Menubar of the window manager anymore. So we need to carry it by ourself with using this code:

    def startMove(self,event):
        self.x = event.x
        self.y = event.y
    
    def stopMove(self,event):
        self.x = None
        self.y = None
    
    def moving(self,event):
        x = (event.x_root - self.x)
        y = (event.y_root - self.y)
        self.geometry("+%s+%s" % (x, y))
    

    And what this code does is to get the current mouse postion by clicking/Button-1 with the event manger

    event.x or event.y means:

    The current mouse position, in pixels.

    event.x_root or event.y_root means:

    The current mouse position relative to the upper left corner of the screen, in pixels.

    and by substracting the one from the other we get the offset, that we need for our geometry method to "move".


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