陆其明的FilterTitleOverlay例子的链接错误！

[tob]

从陆的网站上下载的，
chapter04/FilterTitleOverlay/

错误：
Linking...
Creating library Debug/Hqtlystd.lib and object Debug/Hqtlystd.exp
CFilterTitleOverlay.obj : error LNK2001: unresolved external symbol "public: virtual unsigned long __stdcall CBaseFilter::NonDelegatingRelease(void)" (?NonDelegatingRelease@CBaseFilter@@UAGKXZ)
CFilterTitleOverlay.obj : error LNK2001: unresolved external symbol "public: __thiscall CTransInPlaceFilter::CTransInPlaceFilter(char *,struct IUnknown *,struct _GUID const &,long *,bool)" (??0CTransInPlaceFilter@@QAE@PADPAUIUnknown@@ABU_GUID@@PAJ_N
@Z)
CFilterTitleOverlay.obj : error LNK2001: unresolved external symbol "public: __thiscall CMediaType::CMediaType(class CMediaType const &,long *)" (??0CMediaType@@QAE@ABV0@PAJ@Z)
Debug/Hqtlystd.ax : fatal error LNK1120: 3 unresolved externals
Error executing link.exe.

Hqtlystd.ax - 4 error(s), 0 warning(s)

链接错误，什么回事呢？

[happydeer]

VC开发环境配置问题。参见《directshow开发指南》P66。

1。 编译dx sdk的baseclasses，生成debug版本和release版本两个库。
2. vc开发环境设置：注意将dx sdk的include和lib路径放在vc的标准路径之前。