Problem in using DirectX components in wpf

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I have a problem in using the directX components in wpf application. If I don't use any DirectX components then there's no problem and the window will be loaded. If I include the DirectX component and create an object, then the window is not loading and giving an exception:
{"Mixed mode assembly is built against version 'v1.1.4322' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.":null}

Whichever DirectX component I use I have the same problem. Here is my code:

C#

private void Window_Loaded(object sender, RoutedEventArgs e)
{
     Microsoft.DirectX.DirectSound.Device dev = new Microsoft.DirectX.DirectSound.Device();
     MessageBox.Show("HI");
}

Posted 12-Feb-14 23:33pm

Member 10168312

Updated 12-Feb-14 23:40pm

Pete O'Hanlon

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Pete O'Hanlon · Answer 1 · 2014-02-12T23:38:00

Solution 1

Add an app.config file to your project if you don't have one already in place. In this file, you need to add:

C#

<configuration>
  <startup useLegacyV2RuntimeActivationPolicy="true" />
</configuration>

This tells .NET 4 to allow Mixed Mode[^] CLR 2 assemblies.

Posted 12-Feb-14 23:38pm

Pete O'Hanlon

Comments

Member 10168312 13-Feb-14 6:25am

Thanks.. but it didnt solve my problem....
if i put a break point in window_loaded event, it is also not hitting....
please tell how to use the directx components in wpf...

Pete O'Hanlon 13-Feb-14 6:36am

Check that the configuration file has copied to your output directory - it will have been renamed as exename.exe.config where exename is the name of your executable.