Windows Vista Beta | WinVistaBeta.com - Message | AllowTransparency=True = CPU > 90%

January 06, 2009  
Subject: AllowTransparency=True = CPU > 90%
Group: microsoft.public.windows.developer.winfx.avalon,microsoft.public.windows.developer.winfx.general
Date: 5/31/2007 12:37:57 PM
From: <vrithner@hotmail.com>

Hi,

Just this question for people who can confirm this:

- A WPF normal window is rendered by GPU acceleration
- A WPF window with AllowTransparency="True" is rendered by CPU
The question is here cause I saw the performance are very bad when moving or
resizing (by event + code)

It true, the next question is why WPF doesn't use GPU for transparent window
?

Thx
-Vince



Back