changing the color of the title bar?

[clear-code-projects]

Hi, I wonder if it is possible to change the title of the titlebar? I couldn't find an answer in the documentation but since it is different from the default maybe there is a way to do it easily?

(would be a really good feature, by the way)

[harshnagar]

You are Talking about this Title Bar of the tkinter windows ?

[sumeshir26]

@clear-code-projects I think that is possible using the DWM Api from the ctypes.windll.dwmapi, similar to how the Windows 11 mica effect is set on legacy tkinter/QT applications over here: https://github.com/marticliment/win32mica/blob/ba5ca37161c78712a98bf5ebea3a90882d11c903/src/win32mica/__init__.py#L11

Btw I reallay enjoy your videos :)

[gwiggen1]

If you are talking about the window title:

root.title("")

or

main.title("")

it is built in

[Akascape]

@clear-code-projects
After searching the whole web on this topic, I finally found the solution for this:
We have to use ctypes in order to do this. There is a thing called DwmSetWindowAttribute under windll.dwmapi which will allow us to do changes with window properties which is managed by the OS.

Here is the final result:

CODE

import customtkinter
from ctypes import windll, byref, sizeof, c_int

root = customtkinter.CTk()
root.update()

HWND = windll.user32.GetParent(root.winfo_id()) # the window we want to change

"""
DWMWA_ATTRIBUTES (for windows 11 title bar) 
CAPTION COLOR (HEADER) = 35
BORDER COLOR = 34
TITLE COLOR = 36
"""

DWMWA_ATTRIBUTE = 35

COLOR = 0x00FF0000 # color should be in hex order: 0x00bbggrr

windll.dwmapi.DwmSetWindowAttribute(HWND, DWMWA_ATTRIBUTE, byref(c_int(COLOR)), sizeof(c_int))

root.mainloop()

Make sure that the color can be customized based on the hex values in this order: 0x00bbggrr. You can find more about this color api here: https://learn.microsoft.com/en-us/windows/win32/gdi/colorref

You can also customize other parameters like border color, title color and get a final look like this:

Other themes can also be applied like the mica one:
windll.dwmapi.DwmSetWindowAttribute(HWND, 1029, byref(c_int(0x01)), sizeof(c_int))

That's all I found. Thanks!

[Akascape]

@clear-code-projects I am not a mac user, so I don't know much about its inner system and mechanisms.
Ig there must be a way to change the header with mac also. (maybe with some different APIs).

But atleast windows users can enjoy now.

[Akascape]

Here is the method ctk uses to change the title bar:
https://github.com/TomSchimansky/CustomTkinter/blob/master/customtkinter/windows/ctk_tk.py#L223-L228

[clear-code-projects]

It was a long shot but thank you so much, you have been super helpful :)

[Xiaokang2022]

I've spent hours searching the entire internet for answers, and only yours is the answer I expected! It's amazing! Thank you!

[Akascape]

I've spent hours searching the entire internet for answers, and only yours is the answer I expected! It's amazing! Thank you!

@Xiaokang2022 I recommend you to use my pywinstyles package to make the work easier. You just need to add one line of code in order to change the title bar color

https://github.com/Akascape/py-window-styles