Question

pythonware.com/library/tkinter/introduction/…
documents a overrideredirect method
that will remove thetitlebar and
borders, if that is not enough you
must set the native window style, I’m
not sure if Tkinter gives you that
kind of low-level access, if not, try
the something like
twapi.magicsplat.com/ui.html#set_window_style
TCL extension

In an earlier post I got this as a reply on how to get a border in Tkinter similar to the one pictured below. I am not familiar with Tcl and it’s extensions. So how would go about doing this? The end goal is basicaly to get the border below on a Tkinter window.

Edit :

I used the following on Windows 7 and it didn’t seem to change the style. It’s probably missing something. Any help would be appreciated, this could be really cool!

import string, win32ui, win32con
import Tkinter as tk

root = tk.Tk()

frame = win32ui.CreateWindowFromHandle(string.atoi(root.wm_frame(), 0))
frame.ModifyStyle(win32con.WS_CAPTION, 0, win32con.SWP_FRAMECHANGED)

root.mainloop()

Answer 1

You can do this using a combination of the Python win32 api packages and Tkinter. What you need to know is that a Tk window is the client section of a Win32 window. The window manager interactions are handled using a wrapper that is the parent of Tk window itself. If you have a Tkinter window ‘w’ then you can create a PyWin32 window for the frame or just manipulate it directly. You can get the frame hwnd using w.wm_frame() and parsing the hex string returned or by using GetParent on the winfo_id value from the Tk window (although wm_frame is likely to be more reliable).

import string, win32ui, win32con
from Tkinter import *
w = Tk()
frame = win32ui.CreateWindowFromHandle(string.atoi(w.wm_frame(), 0))
frame.ModifyStyle(win32con.WS_CAPTION, 0, win32con.SWP_FRAMECHANGED)

This removes the WS_CAPTION style and notifies the window that its frame is modified which forces a geometry recalculation so that the change propagates to the Tk child window.

EDIT —
The following arranges to ensure we modify the window style after the window has been fully created and mapped to the display.

import string, win32ui, win32con
from Tkinter import *

def decaption(event):
    w = event.widget
    frame = win32ui.CreateWindowFromHandle(string.atoi(w.wm_frame(), 0))
    frame.ModifyStyle(win32con.WS_CAPTION, 0, win32con.SWP_FRAMECHANGED)
    w.bind("<Map>", None)

root = Tk()
root.bind("<Map>", decaption)
root.mainloop()