.NET (Core and Framework)

Process renameCommandAppProcess = new Process();
renameCommandAppProcess.StartInfo = renameCommandApp;
renameCommandAppProcess.Start();

if (false == renameCommandAppProcess.WaitForInputIdle(10000))
{
    MessageBox.Show("'renameApp' did not respond in a timely manner.", "Missing 'renameApp' application...", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1, MessageBoxOptions.ServiceNotification);
}
else
{
    IntPtr hrenameAppHandle = renameCommandAppProcess.MainWindowHandle;
    if (hrenameAppHandle != IntPtr.Zero)
    {
        if (SetForegroundWindow(hrenameAppHandle))
        {
            // naive approach
            //Thread.Sleep(5000);
            AutomationElement aeForm = AutomationElement.FromHandle(hrenameAppHandle);
            if (aeForm == null)
                MessageBox.Show("'renameApp' did not hand over control in a timely manner.", "Missing 'renameApp' application?", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1, MessageBoxOptions.ServiceNotification);

            AutomationElement aeButton = aeForm.FindFirst(TreeScope.Children,
                new PropertyCondition(AutomationElement.NameProperty, "List1"));
            if (aeButton == null)
                MessageBox.Show("'renameApp' did not hand over control: List1.", "Missing 'renameApp' application?", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1, MessageBoxOptions.ServiceNotification);
            else
                MessageBox.Show("'renameApp' found control: List1.", "Found it!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1, MessageBoxOptions.ServiceNotification);

            /*
             *
             * Now what?  Which of the "16 patterns" do I use if I need to automate a DragAndDrop from
             * application A to application B?
             *
             * The author of the Feb 2008 article chose simple controls like buttons and textboxes.
             * I need something you can sink your teeth into though,
             * like the target control of a DragAndDrop'ed folder object. :)
             *
             * My first guess was (but this didn't work):
             * InvokePattern ipDropFolderObject1 =
             *  (InvokePattern)aeButton.GetCurrentPattern(InvokePattern.Pattern);
             * ipDropFolderObject1.Invoke();
             * Thread.Sleep(1500);
             */

            // Anyone even using this System.Windows.Automation stuff yet?
            // Do you have any alternative suggestions?
        }
    }
}