how to make a childs background and not its controls transparent

[Hypertrophy]

If I created a child this way how would I create it as a transparent background but its controls still visible? Please help. Thanks in advance. God Bless you.

$Child_GUI = GUICreate($list[$n][0], $clientsize[0], $clientsize[1], 0, 0, $WS_POPUP)
DllCall("user32.dll", "int", "SetParent", "hwnd", WinGetHandle($Child_GUI), "hwnd", WinGetHandle($list[$n][0]))

Edited October 11, 2009 by Hypertrophy

[Hypertrophy]

bump

[martin]

bump

You could create the child like this

$Child_GUI = GUICreate("Child", 100, 300, 10, 20,$WS_POPUP,$WS_EX_TRANSPARENT)

But you will have problems when you move the child I expect.

Maybe it would be better to create a mask for the child so that only the area used by the controls is drawn. There are some ideas in this thread.