Application window is transparent.

Question

I am trying to run/debug a WPF application, but as soon as I launch it, the main application window pops-up, and the body of the window is transparent.  I see the title bar, and the application shows in the task bar, but the window body is transparent.  I am remoting into a machine (via Windows Remote Desktop) that has a VM running.  This VM is where I'm trying to run/debug the application.  All 3 machines are running Windows 7.  Is it because of my environment that I can't see the body of the window?  I can run/debug WinForms apps just fine - but WPF windows all show up transparent.

Answer 1

WPF windows typically do work via remote desktop (though they're slower than local copies, in many cases).  Is it all WPF windows, or a specific one?

 

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Reed Copsey, Jr. - http://reedcopsey.com
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Answer 2

I have a couple WPF applications, and all of them show transparent.  

Answer 3

I would check the VM settings - it's possible it's having problems with WPF's hardware acceleration requirements.  WPF tries to hardware accelerate the graphics, which shouldn't happen on a VM, but it may be attempting it.  You can change the settings of the system, which may correct the problem.

 

For details, see the Graphics Settings section for WPF on MSDN: http://msdn.microsoft.com/en-us/library/aa970912.aspx

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Reed Copsey, Jr. - http://reedcopsey.com
If a post answers your question, please click "Mark As Answer" on that post and "Mark as Helpful".

Answer 4

Hi mmckain,

Any update on this issue? Does the problem presists in software rendering mode?

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Min Zhu [MSFT]
MSDN Community Support | Feedback to us

Answer 5

Try to change your OS Graphic setting in the VM, refer to: http://msdn.microsoft.com/en-us/library/aa970912.aspx as Reed pointed. And then test your WPF windows again. On the other hand, could you please tell us what kind of your VM and the virtual/physical hardware information?

Sincerely,

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Bob Bao [MSFT]
MSDN Community Support | Feedback to us

Answer 6

All - the link above didn't directly help me (the registry key mentioned didn't exist in my registry), but it did lead me to this solution:

 In the application class' OnStartup method, add this line (conditionally):

RenderOptions.ProcessRenderMode = System.Windows.Interop.RenderMode.SoftwareOnly;

 

Thanks all for your help!!!