DWM Flip3d Policy TopMost

[TT(n)]

I just read a recent article here at the code guru about the flip-3d feature available on Vista and Windows 7.
It allows, you to place an application above, or below the windows being flipped.

Here is a VB example of that code really neat code.

Const DWMWA_FLIP3D_POLICY As Int32 = 8
Const DWMWA_EXCLUDE_NONE As Int32 = 0
Const DWMWA_EXCLUDE_BELOW As Int32 = 1
Const DWMWA_EXCLUDE_ABOVE As Int32 = 2
Private Declare Function apiDwmSetWindowAttribute Lib "DwmApi" Alias "DwmSetWindowAttribute" (ByVal hwnd As Int32, ByVal attr As Int32, ByRef attrValue As Int32, ByVal attrSize As Int32) As Int32
Private Declare Function apiDwmIsCompositionEnabled Lib "dwmapi" Alias "DwmIsCompositionEnabled" (ByRef enabledptr As Boolean) As Boolean

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    'If Aero enabled
    If IsAeroEnabled() = True Then

       'Set above flip-3d windows
       apiDwmSetWindowAttribute(Me.Handle.ToInt32, DWMWA_FLIP3D_POLICY, DWMWA_EXCLUDE_ABOVE, Runtime.InteropServices.Marshal.SizeOf(DWMWA_EXCLUDE_ABOVE))
    End If

End Sub

Public Function IsAeroEnabled() As Boolean
    Dim os As Int32 = CDbl(Environment.OSVersion.VersionString.Substring(21, 3))
    If os <= 5.1 Then Return False
    apiDwmIsCompositionEnabled(IsAeroEnabled)
End Function

[HanneSThEGreaT]

Thanx for sharing!

Do you think I should add this to the FAQ section.

While I'm on the topic of FAQs.

I wish, how I wish that the FAQ section would start growing, and people would help us with it....

[TT(n)]

Hello Hannes,

Hey that would be a good idea.
I noticed that sometimes my apps, are excluded from the flip list altogether.
I'm not sure if there is a bug, but now my app is included and on top.

We sure could use more FAQ.
I've got a few kicking around, but I've been lazily busy.

Thanks

[HanneSThEGreaT]

I noticed that sometimes my apps, are excluded from the flip list altogether.
I'm not sure if there is a bug, but now my app is included and on top.

Thanks

Interesting...

I'll try to see what I can puzzle out ( not that I'm much help to you )

BTW, Excellent article! :

http://www.codeguru.com/vb/gen/vb_sy...le.php/c16501/

[TT(n)]

Oh thanks,

Perfect example,
I compiled the on screen keyboard in the article, just before I started
using the flip3d above constant.
The keyboard is no where to be seen, in the flip list, above or below it.

Now that it's visible and above, I can click down the left win key.
Physically press tab to initiate the flip feature.
Then scroll with the mouse, left hand free!

Not that I even use that feature.