[Tkinter-discuss] how to wait for user input?
jepler at unpythonic.net
Fri Oct 8 03:32:23 CEST 2004
You can use .grab_set() (force keyboard and mouse events to a single window
in the application) and .wm_transient() (give the window the appearance
of a "transient" window aka "dialog" or "secondary window, and force it
to appear above the main application window in stacking order).
To wait for "something to happen", you can use wait_window (handles
events and returns when the window is destroyed) or wait_variable
(handles events and returns when the value of a variable is changed),
or you can have the command= of the OK and Cancel buttons perform the
action, destroy or hide the window, and release the grab, and use
neither of the above.
.grab_release() will let the main window handle events again.
Destroying the secondary window would automatically release grab. I
don't know whether merely withdrawing it would.
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