VC++编译出错
请大家帮忙指点这些问题的解决办法ImageView.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall CImageView::PostNcDestroy(void)" (?PostNcDestroy@CImageView@@MAEXXZ)
ImageView.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall CImageView::WinHelpA(unsigned long,unsigned int)" (?WinHelpA@CImageView@@UAEXKI@Z)
ImageView.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall CImageView::DestroyWindow(void)" (?DestroyWindow@CImageView@@UAEHXZ)
ImageView.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall CImageView::OnCmdMsg(unsigned int,int,void *,struct AFX_CMDHANDLERINFO *)" (?OnCmdMsg@CImageView@@UAEHIHPAXPAUAFX_CMDHANDLERINFO@@@Z)