public int Attach(IDebugProgram2[] rgpPrograms, IDebugProgramNode2[] rgpProgramNodes, uint celtPrograms, IDebugEventCallback2 ad7Callback, enum_ATTACH_REASON dwReason)
{
Debug.Assert(_program != null);
IDebugProcess2 process;
IDebugProgram2 program = rgpPrograms[0];
EngineUtils.RequireOk(program.GetProcess(out process));
Guid attachedGuid;
EngineUtils.RequireOk(program.GetProgramId(out attachedGuid));
_program.AttachDebugger(attachedGuid);
Debug.WriteLine("IDebugEngine2.Attach: invoking load callbacks");
// The SDM will invoke ContinueFromSynchronousEvent with AD7LoadCompleteEvent. At that point,
// breakpoints from design mode will have already been placed, and the program can be launched.
_callbacks.OnAttach();
return(VSConstants.S_OK);
}