There is a Handle property in .NET Compact Framework 2.0. You can just use
that instead of doing a FindWindow

--
Regards,
Christian Resma Helle
http://christian-helle.blogspot.com


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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-b050-827af03b7bda

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


















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



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