Detecting if a window from an external app is open or not?

[Lunatic3]

For some applications for example Iexplorer each open window is representative of one process so you can simply check for their existence as follows:

Dim pr As Process
For Each pr In Process.GetProcesses
      If pr.MainWindowTitle = "somthing" Then
          MessageBox.Show("That window exists")
      End If
Next

But the problem is when the application has some child windows and you are looking to see if the child window is open or not. By the above example you will get the main window title. So you may use this code:

Dim pr As Process
For Each pr In Process.GetProcesses
      If pr.MainWindowTitle = "Somthing" Then
         Dim winds As New Win32Util.Win32Window(pr.MainWindowHandle)
         Dim child As Win32Util.Win32Window
         For Each child In winds.GetThreadWindows(winds.ThreadId)
            MessageBox.Show(child.Text)
         Next
    End If
Next