Build error in header file "refclock.h", part of the Windows platform SDK

Question

I am creating a VC ++ solution using the Win & SDK and Win8 SDK (including these paths in the LIB and INCLUDE VS2008 settings). But I get the following build error in the refclock.h header file. I do not understand how we can get an error in the standard MSFT header file. Can someone help me fix it?

c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(80) : error C2061: syntax error : identifier 'CAMSchedule' 2>c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(139) : error C2143: syntax error : missing ';' before '*' 2>c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(139) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 2>c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(139) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 2>c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(139) : warning C4183: 'GetSchedule': missing return type; assumed to be a member function returning 'int' 2>c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(178) : error C2143: syntax error : missing ';' before '*' 2>c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(178) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 2>c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(178) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 2>c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(139) : error C2065: 'm_pSchedule' : undeclared identifier 2>c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(166) : error C2065: 'm_pSchedule' : undeclared identifier 2>c:\program files\microsoft sdks\windows\v7.0\samples\multimedia\directshow\baseclasses\refclock.h(166) : error C2227: left of '->GetEvent' must point to class/struct/union/generic type 

Answer 1

This is caused by an error in the refclock.h header and the order of your include directories in Visual Studio.

You need to have the BaseClasses directory (Samples / Multimedia / DirectShow) before that contains the SDK directory, since both of them have a schedule.h file and refclock.h uses <> not "" to enable it.