error LNK2019?
我的程序中有代码入下:已经包含了头文件ca_mergex20.h 可是为什么报错?
void CTest444Dlg::OnButton1()
{HRESULT hr;
ISSCERDA* CERDA;
hr=CoCreateInstance(CLSID_RemoteDataAccess,NULL,CLSCTX_INPROC_SERVER,IID_ISSCERDA,(LPVOID*)&CERDA);
}
test444Dlg.obj : error LNK2019: unresolved external symbol __imp__CoCreateInstance@20 referenced in function "protected: void __thiscall CTest444Dlg::OnButton1(void)" (?OnButton1@CTest444Dlg@@IAEXXZ)
test444Dlg.obj : error LNK2019: unresolved external symbol _CLSID_RemoteDataAccess referenced in function "protected: void __thiscall CTest444Dlg::OnButton1(void)" (?OnButton1@CTest444Dlg@@IAEXXZ)
test444Dlg.obj : error LNK2019: unresolved external symbol _IID_ISSCERDA referenced in function "protected: void __thiscall CTest444Dlg::OnButton1(void)" (?OnButton1@CTest444Dlg@@IAEXXZ)
X86EMRel/test444.exe : fatal error LNK1120: 3 unresolved externals
Error executing link.exe.
Creating browse info file...
test444.exe - 4 error(s), 0 warning(s)