New submission from vs:
Consider the following code implementing a custom modal dialog:
from Tkinter import *
def dialog():
win = Toplevel()
Label(win, text='Modal Dialog').pack()
win.transient(win.master)
win.focus_set()
win.grab_set()
win.wait_window()
root = Tk()
Button(root, text='Custom Dialog', command=dialog).pack()
root.mainloop()
In Python 2.7.3, the parent window behaves as expected when the modal dialog is
active. That is, the parent window responds to minimize, maximize, and close
events. The modal dialog window iconifies and closes together with the parent
window. If a user presses Show Desktop button in Windows OS, the parent and the
dialog iconify together and can be restored from the Taskbar.
However, in more recent Python releases (I tested 2.7.8, 2.7.11 and 3.5.1), the
parent window does not respond to any of the three window commands. If the
modal dialog is open and the user presses Show Desktop, both windows iconify,
but they CANNOT be restored or closed from the Taskbar. The only way to close
such an application is to kill it through the Task Manager.
----------
components: Tkinter, Windows
messages: 260114
nosy: paul.moore, steve.dower, tim.golden, vs, zach.ware
priority: normal
severity: normal
status: open
title: modal dialog with transient method; parent window fails to iconify
type: behavior
versions: Python 2.7, Python 3.5
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue26340>
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