#1035 Keyboard traversal does not work

[Anonymous]

If you make a menubar out of a Menu widget using
the ". config -menu .mb" command, then try to do
a keyboard traversal of the menu, you get an error
message: "grab failed: window not viewable".

The following script reproduces the problem:

# Create a menubar
#
menu .mb -type menubar
. config -menu .mb
.mb add cascade -label File -underline 0 -menu .mb.file
menu .mb.file -tearoff 0
.mb.file add command -label Exit -command exit

# Create a frame to simulate the rest of the
application.
#
frame .f -width 500 -height 300
pack .f -side top -fill both -expand 1

# Wait a while to let everything settle out...
#
update

# Simulate a keyboard traversal of the menubar
#
event generate . <Alt-f>

[Jeffrey Hobbs]

Logged In: YES
user_id=72656

see also [ #220945 ] menubutton traversal not working

[Joe English]

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user_id=68433

See also (closed) bug # 530491 "menu -type menubar breaks
kbd navigation"

I'm pretty sure the right solution is "don't do that" -- the
menu '-type' option should only be set by Tk internals, not
by user code.

If this is the case, perhaps it should be clarified in the
documentation...