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Using environment variables in include directive


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#1 eppo   Crossbones+   -  Reputation: 2507

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Posted 26 November 2012 - 01:18 PM

Hi,

I'm trying to get the pre-Windows 8 XAudio2 headers from the DirectX SDK to work under VS2012.
At one point the documentation tells me to add the following line of code...

#include <%DXSDK_DIR%Include\xaudio2.h>

..., which doesn't work: cannot open include file.

I assume this is because it's not possible to literally specify environment variables this way?

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#2 fastcall22   Crossbones+   -  Reputation: 4369

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Posted 26 November 2012 - 01:34 PM

At one point the documentation tells me to add the following line of code...

#include <%DXSDK_DIR%Include\xaudio2.h>

Do you have a link to the documentation? I'd like to see some context for this code.

I assume this is because it's not possible to literally specify environment variables this way?

No, it is not possible. What I'm assuming is implied by the code is:
1. Add $(DXSDK_DIR)\Include to the include path of your Microsoft.win32.cpp.user properties sheet.
2. Add $(DXSDK_DIR)\Lib\x86 to the library path of your Microsoft.win32.cpp.user properties sheet.
3. Include <xaudio2.h>
c3RhdGljIGNoYXIgeW91cl9tb21bMVVMTCA8PCA2NF07CnNwcmludGYoeW91cl9tb20sICJpcyBmYXQiKTs=

#3 eppo   Crossbones+   -  Reputation: 2507

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Posted 26 November 2012 - 01:46 PM

Here is the specific page: http://msdn.microsoft.com/en-us/library/windows/desktop/ee663275.aspx

I already have this working, but the thing is: you have to add the complete path to the header files (#include <C:/Program Files (x86)/Microsoft DirectX SDK (June 2010)/Include/xaudio2.h>), otherwise they will conflict with the newer headers from the Windows 8 SDK.




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