Hi ctacke,

Already checked it and is not part of the CoreDLL. Check this web page out.
http://mulliner.org/pocketpc/GetFuncAddr.input_full_coredll.txt

and I tried testing the EnumWindows to work with no luck. I was under the
impression that with CF2 I would be able to use it because the documentation
said the Compact Framework 2.0 would support callbacks  for the
EnumWindowsProc but I have been unsuccessful in getting it to work.

And even if I got it to work I think it wouldn't pick up child windows this
is directly from the documentation.
"The EnumWindows function does not enumerate child windows, with the
exception of a few top-level windows owned by the system that have the
WS_CHILD style"

So that is a bummer.

So the next step I have tacken is to try and customise this clever blocks
briliant function to include child windows.
http://blog.opennetcf.org/ayakhnin/PermaLink.aspx?guid=ce482a27-4ae9-4555-b050-8
27af03b7bda

And it now seems to work.
I can enumerate to find the form I want and the enumerate the child windows
of that form outputting both the handle and the caption of each window on
the form.

I will attach the code that I have changed to get it to function how I want
at the bottom you will have to forgive the messy why I have done it because
it is just a profe of consept at the moment. To test it download the zip it
is in VS2003 format and replace his WindowsHelper class with mine from
below.

I realy can't belive that this is the best way of getting hold of child
windows though.
If any one has any better sugestions. Please I am listening.

Thanks,
Ink

//Start of Class
public class WindowHelper
{

 private const uint GW_HWNDFIRST = 0;
 private const uint GW_HWNDLAST = 1;
 private const uint GW_HWNDNEXT = 2;
 private const uint GW_HWNDPREV = 3;
 private const uint GW_OWNER = 4;
 private const uint GW_CHILD = 5;

 [DllImport("coredll.dll")]
 static extern IntPtr GetWindow(IntPtr hWnd, uint uCmd);

 [DllImport("coredll.dll", SetLastError=true)]
 static extern int GetWindowText(IntPtr hWnd, [Out] StringBuilder lpString,
int nMaxCount);

 [DllImport("coredll.dll", SetLastError=true, CharSet=CharSet.Auto)]
 static extern int GetWindowTextLength(IntPtr hWnd);

 [DllImport("coredll.dll")]
 static extern IntPtr GetParent(IntPtr hWnd);

 [DllImport("coredll.dll")]
 static extern int GetWindowLong(IntPtr hWnd, int cmd);

 [DllImport("coredll.dll")]
 static extern IntPtr GetActiveWindow();

 public static Window[] EnumerateTopWindows()
 {
  ArrayList winList = new ArrayList();
  IntPtr hwnd = IntPtr.Zero;
  Window window = null;
  StringBuilder sb = null;

  // Get the first window
  hwnd = GetActiveWindow();
  hwnd = GetWindow(hwnd, GW_HWNDFIRST);

  while(hwnd != IntPtr.Zero)
  {
   IntPtr parentWin = GetParent(hwnd);
   // Make sure that the window doesn't a parent
   if ((parentWin == IntPtr.Zero))
   {
    int length       = GetWindowTextLength(hwnd);
    // Check it has caption text
    if (length > 0)
    {
     sb = new StringBuilder(length + 1);
     GetWindowText(hwnd, sb, sb.Capacity);

     if(sb.ToString()=="my Demo")
     {
      window = new Window();
      window.Handle = hwnd;

      window.Caption = sb.ToString() + " - " + hwnd.ToString();
      winList.Add(window);

      EnumChildWindows(winList,hwnd);
     }

    }
   }

   hwnd = GetWindow(hwnd, GW_HWNDNEXT);
  }

  return (Window[])winList.ToArray(typeof(Window));

 }

 public static void EnumChildWindows(ArrayList winList,IntPtr HWnd)
 {
  IntPtr hwnd = IntPtr.Zero;
  StringBuilder sb = null;
  Window window = null;

  hwnd = GetWindow(HWnd, GW_CHILD);

  while(hwnd != IntPtr.Zero)
  {

    int length       = GetWindowTextLength(hwnd);
    // Check it has caption text
    if (length > 0)
    {
     sb = new StringBuilder(length + 1);
     GetWindowText(hwnd, sb, sb.Capacity);

     window = new Window();
     window.Handle = hwnd;
     window.Caption = sb.ToString() + " - " + hwnd.ToString();
     winList.Add(window);

    }

   hwnd = GetWindow(hwnd, GW_HWNDNEXT);
  }

 }

}

//End of class

//============================================