Beefy Boxes and Bandwidth Generously Provided by pair Networks
laziness, impatience, and hubris
 
PerlMonks  

Re: Height of a label widget in Tk

by TheoPetersen (Priest)
on May 25, 2001 at 17:04 UTC ( #83286=note: print w/ replies, xml ) Need Help??


in reply to Height of a label widget in Tk

In general you can't trust the values of attributes like this until the widget (or window) is displayed. The $w->waitVisibility method allows you to let the widget get displayed and then check matters of interest.

Inside of $w->waitVisibility Tk does updates and processes other events until the widget receives a Visibility event. If you want to handle this kind of thing asynchronously you could look at hooking into that event yourself.


Comment on Re: Height of a label widget in Tk
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://83286]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (5)
As of 2014-12-29 12:13 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (187 votes), past polls