问题描述：
编译时出现：
error C2065: ‘__in’ : undeclared identifier
error C2146: syntax error : missing ‘)’ before identifier ‘HRESULT’
warning C4229: anachronism used : modifiers on data are ignored
error C2059: syntax error : ‘)’
error C3861: ‘__in': identifier not found, even with argument-dependent lookup
error C2146: syntax error : missing ‘)’ before identifier ‘HRESULT’
warning C4229: anachronism used : modifiers on data are ignored
解决方法：
详细的解决方法可参考VC错误：http://www.vcerror.com/?p=1307