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Re: Transparent Windows are Opaque to Classic
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Re: Transparent Windows are Opaque to Classic


  • Subject: Re: Transparent Windows are Opaque to Classic
  • From: Phil Larson <email@hidden>
  • Date: Tue, 15 Apr 2003 19:20:38 -0700

On another note: what ever happened to the hack that made classic windows buffered? I can't remember what version of OS X it worked on, but I remember it was disabled. Why wasn't this ever implemented as a default feature?

Phil

On Tuesday, April 15, 2003, at 05:46 PM, Eric Schlegel wrote:

On Tuesday, April 15, 2003, at 03:23 PM, Karl Goiser wrote:

- Take the RoundTransparentWindow example (which is a square window
with transparent corners)

- Run ANY classic application (well, I have tried ms internet explorer,
SimpleText and Graphing Calculator).

- Put the RoundTransparentWindow over the classic app so it obscures
something non-white.

- See the edges of the RoundTransparentWindow which are normally
transparent actually white-out's the classic app beneath it?

I guess, for my purposes, I have to ask if it's a bug and if there is
any work-around or code to fix it?

I think this is behaving as designed. Classic uses unbuffered windows, so it's not possible for the window server to make your window transparent above them; there's no window buffer with which to composite the transparent portions of your window.

-eric
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References: 
 >Re: Transparent Windows are Opaque to Classic (From: Eric Schlegel <email@hidden>)

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