Transparent AVI's

[DavidSykes]

I have created an ordinary window with coloured background :-

$FMain = GUICreate($PROG_TITLE, $FmainWidth, $FmainHeight)

GUISetBkColor(0x0F687A)

and inserted a system AVI with default transparency :-

Local $hAVI = _GUICtrlAVI_Create($FMain,@SystemDir & "\shell32.dll", 168, 20,50)

The result is not transparent, it sets avi background colour to the parent window's default colour before the new colour was set.

Any ideas ?