Minimizing WHOLe window, irc

I found the hWnd but I want to minimize it, what do I send?
This is my code right now, oh and ret is alwasy 0, even if the code worked, I thought it returned a 0 if it didnt work? anyway

VB Code:

Private Sub Command5_Click()
    rEt = SendMessage(irc_hWnd, WM_COMMAND, SC_MINIMIZE, 0)
End Sub

But it only minimizes one of the child windows in IRC, how do I minimize the whole thing? I am sending the client hwnd.

Why don't you just use:

call showwindow (hwnd, sw_minimize)?