Is this a bug with WinMove and Vista?

[ChrisL]

In Vista if you create a child GUI and use WinMove with a Width and Height set to -1 the control dissapear, it's fine in XP though.

Width and Height are supposed to be optional, in XP I have always set them to -1 to leave the gui the same size as it was before, but in Vista you have to specify the Width and Height if you are using the last parameter of Speed. If no 5th, 6th and 7th parameter are specified it moves OK and the controls remain

Is this a bug in Vista or an anomaly of XP? Not tried in Win7 as I don't have it.

If Width and Height are optional what are you supposed to use to leave the values the same?

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>

$Parent = GuiCreate("Parent",800,600)
GUISetState(@SW_SHOW)
$Child = GuiCreate("",200,400,0,0, $WS_POPUP,BitOR($WS_EX_LAYERED,$WS_EX_MDICHILD),$Parent)
GuiCtrlCreatePic(@desktopdir & "\cropped.jpg",0,0,100,100)
GuisetState(@SW_SHOW)


Sleep(2000)
WinMove($Child,"",400,400,-1,-1,5) ;Any controls drawn on the child will vanish when width and height are set to -1 but only in Vista but W&H are supposed to be optional
Sleep(2000)
WinMove($Child,"",400,400,200,400,5);Reset a W & H and the controls come back

Do
    $msg = GUIGetMsg()
Until $msg = $GUI_EVENT_CLOSE

[BrewManNH]

Instead of -1, you could try using "Default" in its place. This will set the the parameters to whatever the default is supposed to be.

[ChrisL]

Instead of -1, you could try using "Default" in its place. This will set the the parameters to whatever the default is supposed to be.

Thanks, Default works just great

[BrewManNH]

Glad I could help.