why destroy error happen ?

[dotaliu]

ex1:
#!/usr/bin/wish
toplevel .dialog
button .dialog.ok -text "OK" -command {
destroy .dialog
}
pack .dialog.ok

ex2:
#!/usr/bin/wish
toplevel .dialog
button .dialog.ok -text "OK"
bind .dialog.ok <Enter> {
destroy .dialog
}
bind .dialog.ok <Button-1> {
destory .dialog
}

ex2 report "Error: invalid command name .dialog.ok" while ex1 is ok. why is happen? and how to write this script ?

 

[prex1]

There is no [tt]pack[/tt] in ex2.

Franco

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[fdservices]

I think the problem is that there are a whole load of bindings already attached to a button by definition, so when you destroy the button in ex2, with the button1 binding, the built in binding tries to execute bat cannot find the button. I think your code should read:

#!/usr/bin/wish
toplevel .dialog
button .dialog.ok -text "OK"
pack .dialog.ok
bind .dialog.ok <Return> {
destroy .dialog
}
bind .dialog.ok <ButtonPress-1> {
destroy .dialog
}

But it still won't work! You will need to make your own "button" with, for example, a label widget instead:

#!/usr/bin/wish
toplevel .dialog
label .dialog.ok -text "OK" -borderwidth 2 -relief raised -width 4
pack .dialog.ok
focus .dialog.ok
bind .dialog.ok <Return> {
destroy .dialog
}
bind .dialog.ok <ButtonPress-1> {
destroy .dialog
}