ExecuteCommand of Visual Studio DTE object always fails

See more:

C++

Windows

Visual-Studio

COM

Hi,

I am trying to execute the saveAll command from C++ code using DTE object. I have written a sample C++ (Win32 Console application).

 HRESULT hret=CoInitialize(NULL);

 CLSID clsid;
 hret = CLSIDFromProgID(L"VisualStudio.DTE.8.0",&clsid);
 assert(SUCCEEDED(hret));

 // Get IUnknown Interface
 IUnknown *pUnknown=0;
 hret = GetActiveObject(clsid,NULL,&pUnknown)    ;
 assert(SUCCEEDED(hret));

 EnvDTE80::DTE2Ptr pDTE2 = pUnknown;


 hret = pDTE2->ExecuteCommand(_T("File.NewFile"),_T(""));
 if(SUCCEEDED(hret))
 {
     MessageBox(NULL,L"Execute Command Success",L"TEST3",MB_OK);
 }

CoUninitialize();

But everytime ExecuteCommand returns E_FAIL. Any help will be appreciated!