# Disable all key sequences for widget named in variable hWnd, except # the cursor navigation keys (regardless of the state ctrl/shift/etc.) # and Ctrl-C (Copy to Clipboard). bind $hWnd <KeyPress> { switch -- %K { "Up" - "Left" - "Right" - "Down" - "Next" - "Prior" - "Home" - "End" { } "c" - "C" { if {(%s & 0x04) == 0} { break } } default { break } } } # Addendum: also a good idea disable the cut and paste events. bind $hWnd <<Paste>> "break" bind $hWnd <<Cut>> "break"