How do I display a tkinter application in fullscreen on macOS?
I believe what you want to do is use
root.wm_attributes('-fullscreen','true')
Try this instead. It should do the trick.
from tkinter import *root = Tk()root.wm_attributes('-fullscreen','true')def quitApp(): root.destroy()button = Button(text = 'QUIT', command = quitApp).pack()root.mainloop()If this does not work because of the MacOS then take a look at this link This useful page has sever examples of how to manage mack windows in tkinter. And I believe what you may need to get borderless fullscreen.
This bit of code might be what you need:
root.tk.call("::tk::unsupported::MacWindowStyle", "style", root._w, "plain", "none")Note: If you do use this option then you will need to remove root.wm_attributes('-fullscreen','true') from your code or just comment it out.
Update:
There is also another bit of code for tkinter 8.5+.
If you are using python with tkinter 8.5 or newer:
root.wm_attributes('-fullscreen', 1)