Optional geometry shaders

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0 comments, last by Dawoodoz 11 years, 3 months ago
I use D3DX11CompileFromMemory without the effect framework to compile vertex and pixel shaders from HLSL code.
Now I need to compile geometry shaders but the files will usually do not have a geometry shader entry point because they are usually not needed and there should be no error message for not having a geometry shader.
Is there a safe way to check if the entry point GS exist in the string of HLSL code before calling D3DX11CompileFromMemory?
I could not find any HRESULT code that only specify this error.
The word "GS" might occur by accident without being an entry point and the user might cause any syntax error in the HLSL file.
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Checking if a line in the error message begins with "error X3501:" seems to work but it does not feel reliable.

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