I explained in the answer to your next question why it's bad to use HWND and what you should do:
Handle To the Window (hwnd) how to do this for a form[
^].
As to this question, situation is the same. As in that other case, you absolutely don't need HWND to display anything using
System.Windows.Forms
.
You certainly have a big misconception about using this library, but I have no idea how to fix it as you did not share much.
—SA