I found the answer, i needed the following:
tkwait visibility .t
Question
I'm using Tcl/Tk to build a UI and im running into the problem of trying to interact with a toplevel window before it's actually been created.
I created the toplevel window like this:
toplevel .t
Then i try and interact with it like this:
wm stackorder .t isabove .
But .t
doesn't exist yet and i get an error about the window not being mapped. Effectively it equates to doing this:
winfo ismapped [toplevel .t]
which returns 0
but if i immediately run the following:
winfo ismapped .t
Then the return value is 1
.
How can i know when a toplevel window is mapped (and therefore ready to interact with) so that i can proceed with my program?
Solution
I found the answer, i needed the following:
tkwait visibility .t