Paste Text to active Word window

Clipboard.SetText(text);
...
var foregroundWindow = GetForegroundWindow();

if (GetWindowText(foregroundWindow, aString, 256) > 0)
{
    appName = aString.ToString();
    if (appName.IndexOf("Word") > 0)
    {
        Microsoft.Office.Interop.Word.Application wdApp = null;
        wdApp = (Microsoft.Office.Interop.Word.Application)System.Runtime.InteropServices.Marshal.GetActiveObject("Word.Application");
        if (wdApp != null)
        {
            Microsoft.Office.Interop.Word.Selection currentSelection = wdApp.Selection;

            // Store the user's current Overtype selection
            bool userOvertype = wdApp.Options.Overtype;

            // Make sure Overtype is turned off.
            if (wdApp.Options.Overtype)
            {
                wdApp.Options.Overtype = false;
            }

            // Test to see if selection is an insertion point.
            if (currentSelection.Type == Microsoft.Office.Interop.Word.WdSelectionType.wdSelectionIP)
            {
                currentSelection.TypeText(aString);
            }
            else
            {
                if (currentSelection.Type == Microsoft.Office.Interop.Word.WdSelectionType.wdSelectionNormal)
                {
                    // Move to start of selection.
                    if (wdApp.Options.ReplaceSelection)
                    {
                        object direction = Microsoft.Office.Interop.Word.WdCollapseDirection.wdCollapseStart;
                        currentSelection.Collapse(ref direction);
                    }
                    currentSelection.TypeText(aString);
                }
            }

            // Restore the user's Overtype selection
            wdApp.Options.Overtype = userOvertype;
        }
    }
}