Debugger2 Interface 

[GuidAttribute("8B5E2BFD-4642-4EFE-8AF4-0B2DA9AAA23C")] 
public interface Debugger2 : Debugger

/** @attribute GuidAttribute("8B5E2BFD-4642-4EFE-8AF4-0B2DA9AAA23C") */ 
public interface Debugger2 extends Debugger

GuidAttribute("8B5E2BFD-4642-4EFE-8AF4-0B2DA9AAA23C") 
public interface Debugger2 extends Debugger

// The following C++ program can be run from the command line.
// It detects whether an instance of Visual Studio is currently 
// running,and if so, prints a message stating whether its debugger
// is actively debugging.

#include <stdio.h>
#import "dte.olb" raw_interfaces_only named_guids
using namespace EnvDTE80;
int main(void)
{
    int nRet = 0;
    CoInitialize(NULL);
    IUnknownPtr pUnk;
    GetActiveObject(CLSID_DTE, NULL, &pUnk);
    if (pUnk == NULL) {
        printf ("No instance of Visual Studio is running.\n");
    }
    else {
        _DTEPtr pDTE = pUnk;
        if (pDTE) {
            DebuggerPtr pDebugger;
            if (SUCCEEDED(pDTE->get_Debugger(&pDebugger2)) && 
            pDebugger2
            != NULL){
                dbgDebugMode mode;
                if (SUCCEEDED(pDebugger2->get_CurrentMode(&mode))) {
                    if (mode != dbgDesignMode) {
                        printf("Debugger is active.\n");
                        nRet = 1;
                    }
                    else {
                        printf("Debugger is not active.\n");
                    }
                }
            }
        }
    }
    CoUninitialize();
    return nRet;
}