graphics with transparencies and OS 9

Mark Talluto userev at
Thu Nov 4 18:26:10 CST 2004

On Nov 4, 2004, at 3:14 PM, Chris Sheffield wrote:

> Actually, I'm not really sure if this is an issue with transparencies 
> or
> with the windowShape property.
> Here's what's happening.  I have an application that uses a png 
> graphic as a
> window shape.  When I run the app on a non-locked volume, it displays 
> as it
> should, including the transparency.  But if I run the app from a locked
> volume (CD-ROM), it doesn't work.  The stack window displays in a 
> normal
> rectangular window without the special shape, and there is no 
> transparency.
> This is only happening under Mac OS 9, and I have tried using both png 
> and
> gif images with the same results.  Anyone have any ideas why this 
> would be
> happening?  Why would an app need a writable volume in order to 
> display a
> window shape like that?  I can upload some screenshots and post links 
> if
> necessary.

My first guess would be a path issue.  Try checking those paths to make 
sure they are correct.  A relative path would be useful in this 

Best regards,
Mark Talluto

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