Re^3: Can't get Dialog or messageBox to work from button

by hotchiwawa (Scribe)

on Jan 11, 2016 at 16:23 UTC ( [id://1152491]=note: print w/replies, xml )

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Comment on Re^3: Can't get Dialog or messageBox to work from button

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Re^4: Can't get Dialog or messageBox to work from button by Corion (Patriarch) on Jan 11, 2016 at 16:27 UTC
Why do you think that Perl couldn't find `displayMsg`? The debug output certainly shows that it was found and called. If Perl couldn't find a subroutine, it would have raised an error which the OP would have seen.	[reply] [d/l]
Re^5: Can't get Dialog or messageBox to work from button by hotchiwawa (Scribe) on Jan 11, 2016 at 16:50 UTC
Probably that in Tk methods, Tk prefer to have the address of the functions (object reference).	[reply]
Re^6: Can't get Dialog or messageBox to work from button by Corion (Patriarch) on Jan 11, 2016 at 16:58 UTC
But that's what `sub { ... }` already returns. There is no need to have a subroutine reference that itself returns another subroutine reference when called, especially when you want the function call to happen instead.	[reply] [d/l]

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