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Article #2751

Re: getImage is strange

#2751
From: Greg Hamer
Date: Fri, 19 May 2000 00:00
27 lines
1388 bytes
java.awt.MediaTracker exists for this purpose. The images width/height are
invalid until the image  has been loaded, which in the case of an applet
could be awhile. MediaTracker allows you to wait until this has occured.

David Br๏ฟฝnnvall <david@strangnas.mail.telia.com> wrote in message
news:39256aab@dnews...
> Take a look at this:
>
>   buttonimg  = owner.getImage(owner.getCodeBase(),
> owner.getParameter("BUTTON"));
>   int w = buttonimg.getWidth(this);
>
> why is w -1 here, and 437 later.
> when does buttonimg.getWidth(this) return the right value, is it possible
to
> wait until its correct?
>
> is it valid to do something like this:
>
>   buttonimg  = owner.getImage(owner.getCodeBase(),
> owner.getParameter("BUTTON"));
>   while (buttonimg.getWidth(this) == -1 || buttonimg.getHeight(this)
== -1);
>
> or is there a better way?
>
>
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From: "Greg Hamer" <ghamer@corp.netzero.net>
Subject: Re: getImage is strange
Date: 2000/05/19
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