[ruby-core:26180] Re: ruby tk problem

From: hamid i. <[e-mail]>
Subject: [ruby-core:26167] ruby tk problem
Date: Tue, 20 Oct 2009 02:41:06 +0900
Message-ID: <[e-mail]>
> the point is that i dont know how i commit the variable entry1.textvariable=
> =2Centry2.textvariable which i get from my GUI to my function=20
> 
> Little_Helpers_spezial.make_ready_for_export and Little_Helpers_spezial.sav=
> e . can anybody show me the correct way???=20

Excuse me, but I can't understand how it should work.
Can the following help you?

---------------------------------------

Before calling Tk.mainloop, your GUI deesn't appear on your windowing
system. So, you must call your functions in callbacks.

<< plan A: use "commit" button >>
After writing texts into the entry boxes, a user must click the
"commit" button. You call your functions in the callback procedure for
"command" option of the button.

<< plan B: use binding for entry boxes >>
You define a binding for an event (e.g. enter "Return" key) for each
entry box. When a user generates the event, a callback which binds to
the event is called.

<< plan C: use TkVariable#trace >>
You define a trace callback for a Tk variable of "textvariable" option
of an entry box. Whenever a user modifies the text of the entry box,
the value of the Tk variable is changed, and the callback is called.

-- 
Hidetoshi NAGAI ([e-mail])