Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask
 
PerlMonks  

Re^2: Tk module subs executes without invocation

by dannoura (Pilgrim)
on Aug 29, 2005 at 15:45 UTC ( #487445=note: print w/ replies, xml ) Need Help??


in reply to Re: Tk module subs executes without invocation
in thread Tk module subs executes without invocation

Magic. Thanks! That works. Can you explain why?

Also, another question: now that I ported all the subs from the script into a module the script reports:

Assuming require 'Tk::BrowseEntry' at FP_GUI.pm line 151; Assuming require 'Tk::ProgressBar' at FP_GUI.pm line 169;
Also something which it hasn't done before (this is despite a use Tk; statement at the beginning of the module and script). Why is that?


Comment on Re^2: Tk module subs executes without invocation
Select or Download Code
Re^3: Tk module subs executes without invocation
by Tanktalus (Canon) on Aug 29, 2005 at 16:28 UTC

    You can only take a reference to a subroutine of some sort in perl5 (perl6 will have more sophisticated binding to allow you to pre-populate certain parameters and pass that code ref around instead of the original routine). So here what I'm doing is creating an anonymous sub that is also a closure - it's closed on $self, retaining the current value of $self at the time of this routine. It then calls the routine we want with the parameters we want - even though the Tk code can't know what $self is to pass it in.

    As to your assuming lines - I'm not sure, I'm not a Tk user. ;-)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://487445]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others having an uproarious good time at the Monastery: (12)
As of 2014-08-22 10:02 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The best computer themed movie is:











    Results (153 votes), past polls