Re: Tcl::Tk getOpenFile Not Working

Thank you for pointing that out. Indeed it was a mistake.

However, I have now changed the variable call to ${select_input_file} (and updated my original post), but the error of "missing operand" still persists.

Comment on Re: Tcl::Tk getOpenFile Not Working - Missing File Operand

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Re^2: Tcl::Tk getOpenFile Not Working - Missing File Operand by almut (Canon) on Feb 21, 2008 at 00:38 UTC
As you have it, the scope of the lexical variable `my $select_input_file` is limited to the sub `open_file`. A quick hack would be to declare it outside of the sub, so it becomes globally visible. BTW, using strictures would have warned you that `$select_input_file` within `push_button()` is not what you thought it is...	[reply] [d/l] [select]
Re^2: Tcl::Tk getOpenFile Not Working - Missing File Operand by NetWallah (Canon) on Feb 21, 2008 at 00:42 UTC
Your "sub open_file" declares a LOCAL lexical my $select_input_file. Your "push_button" gets a different (uninitialized) variable with the same name. Lesson : always use strict; "As you get older three things happen. The first is your memory goes, and I can't remember the other two... " - Sir Norman Wisdom	[reply]