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TaskbarHelper.bas
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TaskbarHelper.bas
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Attribute VB_Name = "TaskbarHelper"
'--------------------------------------------------------------------------------
' Component : TaskbarHelper
' Project : ViOrb5
'
' Description: This module contains all logic involving the Windows
' taskbar.
'
' Modified :
'--------------------------------------------------------------------------------
Option Explicit
Public g_ReBarWindow32Hwnd As Long
Public g_StartButtonHwnd As Long
Public g_TaskBarHwnd As Long
Public g_StartMenuHwnd As Long
Public g_StartMenuOpen As Boolean
Public g_viStartRunning As Boolean
'Public g_viStartOrbHwnd As Long
Public g_viOrbToolbar As Long
'--------------------------------------------------------------------------------
' Procedure : GetTaskBarEdge
' Description: Determines the orientation of the taskbar, LEFT/RIGHT etc
' Parameters :
'--------------------------------------------------------------------------------
Function GetTaskBarEdge() As AbeBarEnum
Dim abd As APPBARDATA
abd.cbSize = LenB(abd)
abd.hWnd = g_TaskBarHwnd
SHAppBarMessage ABM_GETTASKBARPOS, abd
GetTaskBarEdge = GetEdge(abd.rc)
End Function
'--------------------------------------------------------------------------------
' Procedure : IsStartMenuOpen
' Description: Determines if the windows start menu or vistart is open
' would be nice to include other 3rd party start menus here
' Parameters :
'--------------------------------------------------------------------------------
Public Function IsStartMenuOpen() As Boolean
If IsViStartOpen Then
IsStartMenuOpen = True
Exit Function
End If
If IsWindow(g_StartMenuHwnd) = False Then
g_StartMenuHwnd = FindWindow("DV2ControlHost", "Start Menu")
If g_StartMenuHwnd = 0 Then
g_StartMenuHwnd = FindWindow("DV2ControlHost", vbNullString)
End If
End If
IsStartMenuOpen = IsWindowVisible(g_StartMenuHwnd)
End Function
'--------------------------------------------------------------------------------
' Procedure : IsTaskBarBehindWindow
' Description: Attempts to determine if a given Window handle is behind
' the Windows taskbar
' Parameters : hWnd (Long)
'--------------------------------------------------------------------------------
Function IsTaskBarBehindWindow(hWnd As Long)
If GetZOrder(g_TaskBarHwnd) > GetZOrder(hWnd) Then
IsTaskBarBehindWindow = True
Else
IsTaskBarBehindWindow = False
End If
End Function
'--------------------------------------------------------------------------------
' Procedure : IsViStartOpen
' Description: Determines if ViStart is open specifically
' Parameters :
'--------------------------------------------------------------------------------
Public Function IsViStartOpen()
IsViStartOpen = False
If FindWindow("ThunderRT6FormDC", "ViStart_PngNew") <> 0 Then
IsViStartOpen = True
End If
'Debug.Print "VGMODE::" & IsViStartOpen
End Function
'--------------------------------------------------------------------------------
' Procedure : IsWindowTopMost
' Description: Determines if the given hWnd has the TOPMOST style
' Parameters : hWnd (Long)
'--------------------------------------------------------------------------------
Function IsWindowTopMost(hWnd As Long)
Dim windowStyle As Long
IsWindowTopMost = False
windowStyle = GetWindowLong(hWnd, GWL_EXSTYLE)
If IsStyle(windowStyle, WS_EX_TOPMOST) Then
IsWindowTopMost = True
End If
End Function
'--------------------------------------------------------------------------------
' Procedure : ShowStartMenu
' Description: Triggers the window start menu (ViStart can react to this too)
' Parameters :
'--------------------------------------------------------------------------------
Public Function ShowStartMenu()
SendMessage g_TaskBarHwnd, ByVal WM_SYSCOMMAND, ByVal SC_TASKLIST, ByVal 0
End Function
'--------------------------------------------------------------------------------
' Procedure : UpdatehWnds
' Description: Gets all the Window handles associated with the TaskBar
' Parameters :
'--------------------------------------------------------------------------------
Public Function UpdatehWnds() As Boolean
Dim newTaskBarHwnd As Long
Dim updatedHwnd As Boolean
Dim lParamReturn As Long
updatedHwnd = False
newTaskBarHwnd = FindWindow("Shell_TrayWnd", "")
If newTaskBarHwnd = 0 Then
Exit Function
End If
If newTaskBarHwnd <> g_TaskBarHwnd Then
updatedHwnd = True
g_TaskBarHwnd = newTaskBarHwnd
g_ReBarWindow32Hwnd = FindWindowEx(ByVal g_TaskBarHwnd, ByVal 0&, "ReBarWindow32", vbNullString)
g_viOrbToolbar = FindWindowEx(ByVal g_ReBarWindow32Hwnd, ByVal 0&, "ToolbarWindow32", "Start")
If g_WindowsXP = True Then
g_StartButtonHwnd = FindWindowEx(g_TaskBarHwnd, 0, "Button", vbNullString)
If g_StartButtonHwnd = 0 Then
'Reset update trigger (forcing routine to later update again)
g_TaskBarHwnd = -1
End If
Else
g_StartButtonHwnd = FindWindowEx(g_TaskBarHwnd, 0, "Button", vbNullString)
If g_StartButtonHwnd = 0 Then
g_StartButtonHwnd = FindWindow("Button", "Start")
If g_StartButtonHwnd = 0 Then g_StartButtonHwnd = FindWindow("Button", vbNullString)
If g_StartButtonHwnd = 0 Then
Call EnumChildWindows(g_TaskBarHwnd, AddressOf EnumTaskbarChildrenToFindStartButton, lParamReturn)
End If
End If
If g_StartButtonHwnd = 0 Then
'Reset update trigger (forcing routine to later update again)
If g_TaskBarHwnd > 0 And Not g_Windows8 Then g_TaskBarHwnd = -1
End If
End If
End If
UpdatehWnds = updatedHwnd
End Function
'--------------------------------------------------------------------------------
' Procedure : WaitForTaskbar
' Description: A crude way to suspend program thread until
' we have the windows explorer's taskbar
' Parameters :
'--------------------------------------------------------------------------------
Public Function WaitForTaskbar() As Boolean
Dim findAttempts As Long
UpdatehWnds
While IsWindow(g_TaskBarHwnd) = APIFALSE And findAttempts < 10
findAttempts = findAttempts + 1
Sleep 1000
UpdatehWnds
DoEvents
Wend
WaitForTaskbar = IIf(IsWindow(g_TaskBarHwnd) = APIFALSE, False, True)
End Function
'--------------------------------------------------------------------------------
' Procedure : GetEdge
' Description: Determines which the taskbar rect is on
' Parameters : rc (RECT)
'--------------------------------------------------------------------------------
Private Function GetEdge(rc As RECT) As Long
Dim uEdge As Long: uEdge = -1
If (rc.Top = rc.Left) And (rc.bottom > rc.Right) Then
uEdge = ABE_LEFT
ElseIf (rc.Top = rc.Left) And (rc.bottom < rc.Right) Then
uEdge = ABE_TOP
ElseIf (rc.Top > rc.Left) Then
uEdge = abe_bottom
Else
uEdge = ABE_RIGHT
End If
GetEdge = uEdge
End Function