One application instance with hidden window scenario

[BigJoe714]

Hello.

I have an application which I check to see if there is another running instance at startup. If there is another running instance, I set focus to the existing instance. I am using code that I found on a webpage to do this (Code I am using is at the bottom of this post). When the application is minimized, the form is hidden and an icon appears in the System Tray. My problem is that when I run another instance, the new instance attempts to set focus to the hidden window. The window does not reappear. Can I modify the code to not only make sure that the window is in focus, but to Show the window as well?

Thanks.
-Joe

[STAThread]
static void Main() 
{
 //Get the running instance.
 Process instance = RunningInstance();
 if (instance == null)
 {
  //There isn't another instance, show our form.
  Application.Run (new frmMain());
 }
 else
 {
  //There is another instance of this process.
  HandleRunningInstance(instance);
 }
}

public static Process RunningInstance()
{
 Process current = Process.GetCurrentProcess();
 Process[] processes = Process.GetProcessesByName
(current.ProcessName);

 //Loop through the running processes in with the same name
 foreach (Process process in processes)
 {
  //Ignore the current process
  if (process.Id != current.Id)
  {
   //Make sure that the process is running from the exe file.
   if (Assembly.GetExecutingAssembly().Location.Replace("/", "\\") ==
    current.MainModule.FileName)
   {
    //Return the other process instance.
    return process;
   }
  }
 }

 //No other instance was found, return null.
 return null;
}


public static void HandleRunningInstance(Process instance)
{
 //Make sure the window is not minimized or maximized
 ShowWindowAsync (instance.MainWindowHandle , WS_SHOWNORMAL);

 //Set the real intance to foreground window
 SetForegroundWindow (instance.MainWindowHandle);
}

[DllImport("User32.dll")] 
private static extern bool ShowWindowAsync(
 IntPtr hWnd, int cmdShow);
[DllImport("User32.dll")] private static extern bool
 SetForegroundWindow(IntPtr hWnd);
private const int WS_SHOWNORMAL = 1;