IDebugProcessEx2::Attach
Applies to: 
Visual Studio 
Visual Studio for Mac
Note
This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here
This method informs the process that a session is now debugging the process.
Syntax
HRESULT Attach(
IDebugSession2* pSession
);
int Attach(
IDebugSession2 pSession
);
Parameters
pSession
[in] A value that uniquely identifies the session attaching to this process.
Return Value
If successful, returns S_OK; otherwise, returns an error code.
Remarks
The interface passed in pSession is to be treated only as a cookie, a value that uniquely identifies the session debug manager attaching to this process; none of the methods on the supplied interface are functional.