Is there any way to get a Window's Transparency?

[emmanuel]

I've got a window that I want to make transparent whenever it's not active, ala:

CODE

if not WinActive("Display Flipper") Then

WinSetTrans("Display Flipper", "", round(.50 * 255))

Else

WinSetTrans("Display Flipper", "", 255)

EndIf

However, this makes the worst flicker on the GUI ever when the window is Active as it's transparency is being set to 255 at a rapid pace.

I'd prefer to have it check if it's not transparent, then if it is, make it non-transparent.

Is there any way to get a window's transparency?

[Jos]

what about :

Global $WinTrans = 0
While 1

    If Not WinActive("Display Flipper") Then
        If $WinTrans <> 1 Then WinSetTrans("Display Flipper", "", Round(.50 * 255))
        $WinTrans = 1
    Else
        If $WinTrans <> 2 Then WinSetTrans("Display Flipper", "", 255)
        $WinTrans = 2
    EndIf

WEnd

Edited December 14, 2006 by JdeB

[emmanuel]

Dude. JdeB to the rescue again! Thanks man. Works perfectly, don't know why I didn't think of that, I'm using similar logic in other parts of the script...

[Valik]

Just to answer your original question, there's an API GetLayeredWindowAttributes() which will return the transparency but it's only available on Windows XP+ (SetLayeredWindowAttributes() is available on 2000+). You can use DllCall() if necessary.