GuiCreate giving different results on 2 different systems.

[fRequEnCy]

I'm creating a GUI which blacks out the whole screen and runs an app in the background. Now it creates and hides just fine but when I run the app the taskbar shows for a brief second. I don't wanna hide the taskbar the other way by hiding it in case my wrapper gets closed before it's called back cuz then the taskbar is left hidden.

Here's my code for creating the gui:

$hideOS = GUICreate("", @DesktopWidth + 20, @DesktopHeight + 20, 0, 0, $WS_POPUP, $WS_EX_TOPMOST, 0)
GUISetBkColor(0x000000)
GUISetState()

When I change either the left or top value then I get the results I want other than now I see the OS (just a 1px line):

$hideOS = GUICreate("", @DesktopWidth + 20, @DesktopHeight + 20, 0, 1, $WS_POPUP, $WS_EX_TOPMOST, 0)
GUISetBkColor(0x000000)
GUISetState()

Now the 0, 0 values work for a friend of mine on his system yet not on mine. I'm trying to get this done to work universally. Any ideas?

[scriptjunkie]

Works fine for my pc.

[Cdma1X]

the another pc you are using to test this code have different screen size.

[crzftx]

why don't you use something like this then:

$hideOS = GUICreate("", @DesktopWidth + 20, @DesktopHeight + 20, -10, -10, $WS_POPUP, $WS_EX_TOPMOST, 0)
GUISetBkColor(0x000000)
GUISetState()