From #64

func checkCoInitializeErr(err error) {
    if err != nil {
        code := err.(*ole.OleError).Code()
        fmt.Printf("CoInitializeEx returned with %v", err)
        if code == 0x00000001 { // The COM library is already initialized on this thread.
            return
        }
        panic(err)
    }
}

func main() {
    defer func() {
        r := recover()
        if r != nil {
            fmt.Printf("%v", r)
        }
    }()
    /*
    mutex := sync.Mutex{}
    mutex.Lock()
    defer mutex.Unlock()
    runtime.LockOSThread()
    defer runtime.UnlockOSThread()
    */

    err := ole.CoInitializeEx(0, ole.COINIT_APARTMENTTHREADED)
    checkCoInitializeErr(err)
    defer ole.CoUninitialize()

    comserver, err := oleutil.CreateObject("WbemScripting.SWbemLocator")
    if err != nil {
        fmt.Printf("CreateObject WbemScripting.SWbemLocator returned with %v", err)
        panic(err)
    }
    defer comserver.Release()

    dispatch, err := comserver.QueryInterface(ole.IID_IDispatch)
    if err != nil {
        fmt.Printf("context.iunknown.QueryInterface returned with %v", err)
        panic(err)
    }
    defer dispatch.Release()

    wbemServices := oleutil.MustCallMethod(dispatch, "ConnectServer")
    defer wbemServices.Clear()
    wbemServices_dispatch := wbemServices.ToIDispatch()
    defer wbemServices_dispatch.Release()

    objectset := oleutil.MustCallMethod(wbemServices_dispatch, "ExecQuery", "SELECT * FROM WIN32_Process")
    objectset_dispatch := objectset.ToIDispatch()
    defer objectset.Clear()
    variant := oleutil.MustGetProperty(objectset_dispatch, "_NewEnum")
    defer variant.Clear()

    object2 := variant.ToIUnknown().IEnumVARIANT(&ole.GUID{0x027947E1, 0xD731, 0x11CE, [8]byte{0xA3, 0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}})
    defer object2.Release()

    a, l, err := enum.Next(1)
    if err != nil {
        panic(err)
    }
    fmt.Println(&a)
    fmt.Println(l)
}

Should be close to working. Need to convert to test case.

Uh oh!

Create test case for IEnumVARIANT using WMI #100

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