Re: Determining if a windows application is already running

Hi Jim!

In my posting 2 weeks ago (http://discuss.develop.com/archives/wa.exe?
A2=ind0504b&L=jawin&T=0&F=&S=&P=644) I described how to use
GetActiveObject from OLEAUT32.DLL to retrieve a pointer to a
running (and registered) COM instance.

With the sample code from my second posting

(remove the
...
            Ole32.CoCreateInstance
(clsid,Ole32.CLSCTX_ALL,WellKnownGUIDs.IID_IUnknown);

            System.out.println(clsid);
            System.out.flush();
...  :)

you can use something like

...
public static final int MK_E_UNAVAILABLE   = 0x800401E3;
...

IUnknown unknown = null;

try
{
    unknown = OleAut32.GetActiveObject("Application.Word");
}
catch (COMException ex)
{
    if (MK_E_UNAVAILABLE != ex.hresult)
    {
       throw ex;
    }
}

boolen wordRunning = (null != unknown);
...



Georg