I have working app that uses DirectX 9. I need to update my app for Windows 8 Store that require compilation with SafeSEH flag. It's working only with DirectX 11 SDK, but there is no d3dx9 that used by my app. I was found DirectXTK, DirectXTex and DirectXMath libs with similar functionality. What is best way to update the code with no damage to older platforms (that have only old version of DirectX 9 runtime) ?
It seems the DirectX 9 code must be rewriten with DirectX 11, cause DirectXTK, DirectXTex, DirectXMath libs works only with DX11. More information I have found at http://social.msdn.microsoft.com/Forums/en-US/wingameswithdirectx/thread/c082b208-0d95-4c41-852f-9450340093f4/