get the path of an opened window before paste

Ok; help me with this;
This gets the path, BUT gets the last opened windows, if you switch from another windows to another?, the last windows opened still detected.


private string s;
private void button1_Click(object sender, EventArgs e)
{

//Shell32 is located in Interop.Shell32 assembly
 Shell32.ShellClass shell = new ShellClass();

//Shellwindows is located in SHDocVw.dll under C:\windows
ShellWindows shellWindows = (ShellWindows)shell.Windows();

//Don't know how to apply this to shellWindow
////////IntPtr activeHwnd = GetForegroundWindow();

foreach (ShellBrowserWindow shellWindow in shellWindows)
{
//this is the path        
s= shellWindow.LocationURL;


//This is the object that holds Explorer window information.
ShellFolderView view = (ShellFolderView)shellWindow.Document;

//Add error handling and null checks here
foreach (FolderItem item in view.SelectedItems())
{
    MessageBox.Show(item.Path.ToString());
}

}


label1.Text = s;
}

ShellBrowserWindow has HWND property. You could compare handle from GetForegroundWindow with it.

Don't know how to apply, please help, a code snippet would be great.

GetForegroundWindow Can't handle it, even GetLastActivePopup.
There must be a way to get the current or last folder opened.

//Shell32 is located in Interop.Shell32 assembly
Shell32.ShellClass shell = new ShellClass();

//Shellwindows is located in SHDocVw.dll under C:\windows
ShellWindows shellWindows = (ShellWindows)shell.Windows();

foreach (ShellBrowserWindow shellWindow in shellWindows)
{
//This is the object that holds Explorer window information.
ShellFolderView view = (ShellFolderView)shellWindow.Document;
//Get ALL currently active windows path
MessageBox.Show(view.FocusedItem.Path);
}


The problem is, is ALL, it list all,  BUT I want to get ONLY the last active window.

Please, someone, help, it's very impossible that a longtime experts here did not encounter this.
I already provided the code snippet, just a little line to solve the problem.

Error      1      The name 'WinEventProc' does not exist in the current context ?

Ok, I've made some research, here it is;
http://social.msdn.microsoft.com/Forums/en/vcmfcatl/thread/0dbbc02e-cfd1-4183-a252-c1e9d6166fd8
http://social.msdn.microsoft.com/Forums/en/clr/thread/c04e343f-f2e7-469a-8a54-48ca84f78c28
http://ctp.social.msdn.microsoft.com/Forums/en-US/winforms/thread/30ae2081-17ed-497a-942e-efb75bca6295

The problem is?, it only gets the title of the window by getText,  i'LL try to see if there is a fix, please help also.

Please note, that I am getting the LAST/current path of last/current explored window.


Thanks

I think I got it,
thank you

Looks like I forgot to paste code for the event handler :o( . Sorry abuot that. Here it is:

        static void WinEventProc(
            IntPtr hWinEventHook, uint eventType,IntPtr hwnd, int idObject, int idChild,
            uint dwEventThread, uint dwmsEventTime)
        {
            if (eventType == EVENT_SYSTEM_FOREGROUND)
            {
                int pid;
                Process[] pc = Process.GetProcessesByName("explorer");
                uint processID = 0;
                uint threadID = GetWindowThreadProcessId(hwnd, out processID);

                foreach (Process p in pc)
                {
                    if (p.Id == processID) m_explHwnd = hwnd;
                }
            }
        }

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