GetForegroundWindow(); with docs.ActiveWindow.Selection.Font

Question

In my C# background (Tray) application, I am checking if foreground application is Office Word application, using following Function. It is working perfectly.

bool WinWordApp()
{
   IntPtr hwnd = GetForegroundWindow();
   BringWindowToTop(hwnd);
   uint pid;
   GetWindowThreadProcessId(hwnd, out pid);
   Process p = Process.GetProcessById((int)pid);
   string AppName = null;
   AppName = p.ProcessName.ToString();
   if (AppName.IndexOf("WinWord", StringComparison.CurrentCultureIgnoreCase) != -1)
      return true;
   else
      return false;
}

My query: Using this pid / p / AppName, I want to just set font in the foreground Word application, to say “Arial”, without touching other attributes like font size, underline, bold etc. On the net I got some clues like:

objWord.Activewindow.Selection.Font.Name = "Arial"

But I don’t know how to club these two.

 

Please help.