I'm trying to capture all minimized windows of the browser but something is not working correctly, Why i can't get all the windows ?

Question

The Callback method:
private bool Callback(IntPtr hwnd, int lParam)
if (this.Handle != hwnd && (Constants.GetWindowLongA(hwnd, Constants.GWL_STYLE) & Constants.TARGETWINDOW) == Constants.TARGETWINDOW)
StringBuilder sb = new StringBuilder(100);
Constants.GetWindowText(hwnd, sb, sb.Capacity);
Window t = new Window();
t.Handle = hwnd;
t.Title = sb.ToString();
windows.Add(t);
return true;

Answer 1

Don't know if it's decisive, but lParam should be IntPtr here:
     private bool Callback(IntPtr hwnd, IntPtr lParam)
What is Constants.TARGETWINDOW? For retrieving GWL_STYLE, the valid styles (Link) do not contain this name.
Armin