[2005] AppBar Modification

So I found this code on the internet yesterday, and it works okay, but I'm wanting to run it on a second monitor and this is way over my head.

Can anyone help me out with this? Any ideas where to start or any at all would be great.

Thanks!!!

Code:

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#Region " AppBar "
    <StructLayout(LayoutKind.Sequential)> Structure RECT
        Public left As Integer
        Public top As Integer
        Public right As Integer
        Public bottom As Integer
    End Structure
    <StructLayout(LayoutKind.Sequential)> Structure APPBARDATA
        Public cbSize As Integer
        Public hWnd As IntPtr
        Public uCallbackMessage As Integer
        Public uEdge As Integer
        Public rc As RECT
        Public lParam As IntPtr
    End Structure
    Enum ABMsg
        ABM_NEW = 0
        ABM_REMOVE = 1
        ABM_QUERYPOS = 2
        ABM_SETPOS = 3
        ABM_GETSTATE = 4
        ABM_GETTASKBARPOS = 5
        ABM_ACTIVATE = 6
        ABM_GETAUTOHIDEBAR = 7
        ABM_SETAUTOHIDEBAR = 8
        ABM_WINDOWPOSCHANGED = 9
        ABM_SETSTATE = 10
    End Enum
    Enum ABNotify
        ABN_STATECHANGE = 0
        ABN_POSCHANGED
        ABN_FULLSCREENAPP
        ABN_WINDOWARRANGE
    End Enum
    Enum ABEdge
        ABE_LEFT = 0
        ABE_TOP
        ABE_RIGHT
        ABE_BOTTOM
    End Enum
    Private fBarRegistered As Boolean = False
    <DllImport("SHELL32", CallingConvention:=CallingConvention.StdCall)> _
    Public Shared Function SHAppBarMessage(ByVal dwMessage As Integer, ByRef BarrData As APPBARDATA) As Integer
    End Function
    <DllImport("USER32")> _
    Public Shared Function GetSystemmetric(ByVal Index As Integer) As Integer
    End Function
    <DllImport("User32.dll", ExactSpelling:=True, CharSet:=System.Runtime.InteropServices.CharSet.Auto)> _
    Public Shared Function MoveWindow(ByVal hWnd As IntPtr, ByVal x As Integer, ByVal y As Integer, ByVal cX As Integer, ByVal cY As Integer, ByVal repaint As Boolean) As Boolean
    End Function
    <DllImport("User32.dll", CharSet:=CharSet.Auto)> _
    Public Shared Function RegisterWindowMessage(ByVal msg As String) As Integer
    End Function
    Private uCallBack As Integer

    Private Sub RegisterBar()
        Dim abd As New APPBARDATA
        Dim ret As Integer
        abd.cbSize = Marshal.SizeOf(abd)
        abd.hWnd = Me.Handle
        If Not fBarRegistered Then
            uCallBack = RegisterWindowMessage("AppBarMessage")
            abd.uCallbackMessage = uCallBack

            ret = SHAppBarMessage(ABMsg.ABM_NEW, abd)
            fBarRegistered = True

            ABSetPos()
        Else
            ret = SHAppBarMessage(ABMsg.ABM_REMOVE, abd)
            fBarRegistered = False
        End If
    End Sub

    Private Sub ABSetPos()
        Dim abd As New APPBARDATA
        abd.cbSize = Marshal.SizeOf(abd)
        abd.hWnd = Me.Handle
        abd.uEdge = ABEdge.ABE_TOP

        If abd.uEdge = ABEdge.ABE_LEFT OrElse abd.uEdge = ABEdge.ABE_RIGHT Then
            abd.rc.top = 0
            abd.rc.bottom = SystemInformation.PrimaryMonitorSize.Height
            If abd.uEdge = ABEdge.ABE_LEFT Then
                abd.rc.left = 0
                abd.rc.right = Size.Width
            Else
                abd.rc.right = SystemInformation.PrimaryMonitorSize.Width
                abd.rc.left = abd.rc.right - Size.Width
            End If
        Else
            abd.rc.left = 0
            abd.rc.right = SystemInformation.PrimaryMonitorSize.Width
            If abd.uEdge = ABEdge.ABE_TOP Then
                abd.rc.top = 0
                abd.rc.bottom = Size.Height
            Else
                abd.rc.bottom = SystemInformation.PrimaryMonitorSize.Height
                abd.rc.top = abd.rc.bottom - Size.Height
            End If
        End If

        'Query the system for an approved size and position.
        SHAppBarMessage(ABMsg.ABM_QUERYPOS, abd)

        'Adjust the rectangle, depending on the edge to which the appbar is anchored.
        Select Case abd.uEdge
            Case ABEdge.ABE_LEFT
                abd.rc.right = abd.rc.left + Size.Width
            Case ABEdge.ABE_RIGHT
                abd.rc.left = abd.rc.right - Size.Width
            Case ABEdge.ABE_TOP
                abd.rc.bottom = abd.rc.top + Size.Height
            Case ABEdge.ABE_BOTTOM
                abd.rc.top = abd.rc.bottom - Size.Height
        End Select

        'Pass the final bounding rectangle to the system.
        SHAppBarMessage(ABMsg.ABM_SETPOS, abd)

        'Move and size the appbar so that it conforms to the  bounding rectangle passed to the system.
        MoveWindow(abd.hWnd, abd.rc.left, abd.rc.top, abd.rc.right - abd.rc.left, abd.rc.bottom - abd.rc.top, True)
    End Sub

#End Region


 
    Private Sub frmMain_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
        RegisterBar()
    End Sub




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

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FormBorderStyle = FixedToolWindow
ControlBox = False
WindowState = Maximized
StartPosition = Manual

I'd honestly not recommend setting an AppBar form to maximized, Normal would make more sence.

Back to your question.

In order to determine if we are dealing with multiple monitors, you'd need these APIs and constants :

Code:

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    Inherits System.Windows.Forms.Form
    Const CCDEVICENAME As Short = 32
    Const CCFORMNAME As Short = 32
    Const DM_BITSPERPEL = &H40000
    Const DM_PELSWIDTH = &H80000
    Const DM_PELSHEIGHT = &H100000
    Const CDS_UPDATEREGISTRY = &H1

    Const DISPLAY_DEVICE_ATTACHED_TO_DESKTOP = &H1 'Device that is part of desktop
    Const DISPLAY_PRIMARY_DEVICE = &H4 'Primary device

    'Holds the information of display adpter
    Private Structure DISPLAY_DEVICE
        Public cb As Integer
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=CCDEVICENAME)> _
          Public DeviceName As String
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=128)> _
          Public DeviceString As String
        Public StateFlags As Short
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=128)> _
          Public DeviceID As String
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=128)> _
          Public DeviceKey As String
    End Structure

    'Holds the setting of display adapter
    Private Structure SetResolution
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=CCDEVICENAME)> _
        Public dmDeviceName As String
        Public dmSpecVersion As Short
        Public dmDriverVersion As Short
        Public dmSize As Short
        Public dmDriverExtra As Short
        Public dmFields As Integer
        Public dmOrientation As Short
        Public dmPaperSize As Short
        Public dmPaperLength As Short
        Public dmPaperWidth As Short
        Public dmScale As Short
        Public dmCopies As Short
        Public dmDefaultSource As Short
        Public dmPrintQuality As Short
        Public dmColor As Short
        Public dmDuplex As Short
        Public dmYResolution As Short
        Public dmTTOption As Short
        Public dmCollate As Short

        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=CCFORMNAME)> _
        Public dmFormName As String
        Public dmLogPixels As Short
        Public dmBitsPerPel As Short
        Public dmPelsWidth As Integer
        Public dmPelsHeight As Integer
        Public dmDisplayFlags As Integer
        Public dmDisplayFrequency As Integer
        Public dmICMMethod As Integer
        Public dmICMIntent As Integer
        Public dmMediaType As Integer
        Public dmDitherType As Integer
        Public dmReserved1 As Integer
        Public dmReserved2 As Integer
        Public dmPanningWidth As Integer
        Public dmPanningHeight As Integer
    End Structure

    'API declaration set or get display adpter information
    <DllImport("user32.dll")> _
    Private Shared Function EnumDisplayDevices(ByVal Unused As Integer, _
    ByVal iDevNum As Short, ByRef lpDisplayDevice As DISPLAY_DEVICE, ByVal dwFlags As Integer) As Integer
    End Function
    <DllImport("user32.dll")> _
        Private Shared Function EnumDisplaySettings(ByVal lpszDeviceName As String, _
        ByVal iModeNum As Integer, ByRef lpDevMode As SetResolution) As Integer
    End Function
    <DllImport("user32.dll")> _
        Private Shared Function ChangeDisplaySettingsEx(ByVal lpszDeviceName As String, _
        ByRef lpDevMode As SetResolution, ByVal hWnd As Integer, ByVal dwFlags As Integer, _
        ByVal lParam As Integer) As Integer
    End Function

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That would give you a good start ;)