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Maximising a ribbon window on Win7 "Non-Aero" Mode causes rendering issues #226

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robertmuehsig opened this issue Dec 21, 2015 · 5 comments
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@robertmuehsig
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I guess I found another WindowChrome bug: When the Window is maximised the desktop rendering is flickering and slow. In our application it is much worse then with the test app - we see a delay of a couple of seconds.

It only occures on Windows 7, in the "Non-Aero" Mode. We connect to the machine via Remote Desktop and I guess there is no hardware acceleration available.

We are using .NET 4.0, but the problem occures also on .NET 4.5. The good news is: It seems with the dev branch the issue is fixed (#185)

I made a short gif to demostrate the bug:
gif

Hope this helps. Any timeframe for a 4.0 "pre-release" nuget package?

@robertmuehsig
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Just made a small test run with our application and running against the dev 4.0 dlls: Works 👍

I noticed that with Fluent 4.0 the window has no shadow - is this by design or just a missing detail currently?
image

@batzen
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batzen commented Dec 21, 2015

Pre-Release: Sometime this week.
Shadow: Will have a look.

@robertmuehsig
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Thanks!

@batzen batzen added this to the 4.0.0 milestone Dec 21, 2015
@batzen batzen self-assigned this Dec 21, 2015
@batzen
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batzen commented Dec 21, 2015

Drop shadow get's killed by the WindowChrome class.
But I don't exactly know why and how to restore it...

@batzen batzen closed this as completed in f0fb328 Dec 22, 2015
@mezzalunaj
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The fix worked perfectly for me, thanks!! Just an FYI: when I referenced the 4.0.0 dll in my project, I started receiving a XamlParseException: Cannot set OverridesDefaultStyle property in the default Style exception. I tracked it back to the RibbonWindow.xaml file (line 695). I removed the "OverridesDefaultStyle" setter and everything works great for me now. Just sharing in case someone else runs into the same issue. Cheers!! J.D.

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