How do I call ICDBurn::GetRecorderDriveLetter() in VS2008 C++? (Solving XP CD write to root)

问题

I am trying to implement the solution given in

GetSaveFileName() not returning path of CD burning staging area on XP

I'm trying to implement this in VS2008 C++. The ICDBurn::GetRecorderDriveLetter() method is not static and thus cannot be called as written (ICDBurn::GetRecorderDriveLetter) in the above answer. ICDBurn can't be instantiated because it's an abstract class. How do I call ICDBurn::GetRecorderDriveLetter() from C++?

回答1:

You need to create the COM object first.

ICDBurn* pICDBurn;
HRESULT hr = CoCreateInstance(CLSID_CDBurn, NULL,CLSCTX_INPROC_SERVER,IID_ICDBurn,(LPVOID*)&pICDBurn);
if (SUCCEEDED(hr))
{

// do something ...
pICDBurn->Release();

}

来源：https://stackoverflow.com/questions/5825944/how-do-i-call-icdburngetrecorderdriveletter-in-vs2008-c-solving-xp-cd-wr