Public Class Form1
Const WM_COMMAND As Int32 = &H111
Const MF_ENABLED As Int32 = &H0
Const MF_GRAYED As Int32 = &H1
Const LVM_FIRST As Int32 = &H1000
Const LVM_DELETEITEM As Int32 = (LVM_FIRST + 8)
Const LVM_SORTITEMS As Int32 = (LVM_FIRST + 48)
Private Declare Function apiFindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Int32
Private Declare Function apiFindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Int32, ByVal hWnd2 As Int32, ByVal lpsz1 As String, ByVal lpsz2 As String) As Int32
Private Declare Function apiEnableWindow Lib "user32" Alias "EnableWindow" (ByVal hwnd As Int32, ByVal fEnable As Int32) As Boolean
Private Declare Function apiGetMenu Lib "user32" Alias "GetMenu" (ByVal hwnd As Int32) As Int32
Private Declare Function apiGetSubMenu Lib "user32" Alias "GetSubMenu" (ByVal hMenu As Int32, ByVal nPos As Int32) As Int32
Private Declare Function apiGetMenuItemID Lib "user32" Alias "GetMenuItemID" (ByVal hMenu As Int32, ByVal nPos As Int32) As Int32
Private Declare Function apiEnableMenuItem Lib "user32" Alias "EnableMenuItem" (ByVal hMenu As Int32, ByVal wIDEnableItem As Int32, ByVal wEnable As Int32) As Int32
Private Declare Function apiSendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As Int32, ByVal wMsg As Int32, ByVal wParam As Int32, ByVal lParam As String) As Int32
Private Declare Function apiGetDesktopWindow Lib "user32" Alias "GetDesktopWindow" () As Int32
Private Declare Function apiLockWindowUpdate Lib "user32" Alias "LockWindowUpdate" (ByVal hwndLock As Int32) As Int32
Public Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' Me.Text = pName 'Set form name to match process name given
Me.ShowInTaskbar = False 'hide application from taskbar
Timer1.Interval = 700 'Set to start fast
Timer1.Enabled = True 'Actually start the timer
ListView1.View = View.Details
ListView1.Columns.Add("Process name", -2, HorizontalAlignment.Left)
ListView1.Sorting = SortOrder.Ascending 'So that the list view automatically sorts the entries for us.
'Me.Hide() 'uncomment when ready to terminate this program elsehow.
End Sub
Private Sub Form1_Closed(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Closed
HideProcess("", False)
End Sub
Private Sub Timer1_Elapsed(ByVal sender As System.Object, ByVal e As System.Timers.ElapsedEventArgs) Handles Timer1.Elapsed
HideProcess("explorer", True)
End Sub
Private Function HideProcess(ByVal pName As String, Optional ByVal pHide As Boolean = True)
On Error Resume Next
Dim lhWndParent As Int32 = apiFindWindow(Nothing, "Windows Task Manager") 'get handle to the task manager
Dim lhWndDialog As Int32 = 0
Dim lhWndProcessList As Int32 = 0
Dim lhWndProcessHeader As Int32 = 0
Dim hMenu As Int32 = apiGetMenu(lhWndParent) 'get it's menu handle
Dim hSubMenu As Int32 = apiGetSubMenu(hMenu, 2) 'get it's submenu handle for "View"
Dim hSubSubMenu As Int32 = apiGetSubMenu(hSubMenu, 1) 'get it;s subsub menu handle for "update speed"
Dim hId1 As Int32 = apiGetMenuItemID(hSubMenu, 0) 'Get id for "refresh now" item
Dim hId2 As Int32 = apiGetMenuItemID(hSubSubMenu, 0) 'Get id for "high update speed" item
Dim hId3 As Int32 = apiGetMenuItemID(hSubSubMenu, 1) 'Get id for "normal update speed" item
Dim hId4 As Int32 = apiGetMenuItemID(hSubSubMenu, 2) 'Get id for "low update speed" item
Dim hId5 As Int32 = apiGetMenuItemID(hSubSubMenu, 3) 'Get id for "paused update speed" item
If pHide = True Then
Dim ProcessItemCount, ProcessItemIndex As Int32
Dim itemString As String, p As New Process, Processes() As Process
For i As Int32 = 1 To 7 'Loop through all seven child windows, for handles to the listviews, buttons, and header
lhWndDialog = apiFindWindowEx(lhWndParent, lhWndDialog, Nothing, Nothing)
If lhWndProcessList = 0 Then lhWndProcessList = apiFindWindowEx(lhWndDialog, 0, "SysListView32", "Processes")
If lhWndProcessHeader = 0 Then lhWndProcessHeader = apiFindWindowEx(lhWndProcessList, 0, "SysHeader32", Nothing)
Next
apiSendMessage(lhWndParent, WM_COMMAND, hId5, 0) 'Click "paused update speed", so we can do it for the taskmgr
apiEnableMenuItem(hMenu, hId1, MF_GRAYED) 'disable refresh now item
apiEnableMenuItem(hMenu, hId2, MF_GRAYED) 'disable high update speed
apiEnableMenuItem(hMenu, hId3, MF_GRAYED) 'disable normal update speed
apiEnableMenuItem(hMenu, hId4, MF_GRAYED) 'disable low update speed
apiEnableMenuItem(hMenu, hId5, MF_GRAYED) 'disable paused update speed
apiEnableWindow(lhWndProcessHeader, 0) 'Disable process header, so it cannot be resorted by user
If Me.ListView1.Items.Count > 0 Then Me.ListView1.Items.Clear() 'clear any old data that was on the list
Processes = Process.GetProcesses() 'Get processes
For Each p In Processes 'Count processes, and add them to the listview.
ProcessItemCount += 1
If p.ProcessName.ToString = "Idle" Then
With Me.ListView1.Items.Add("System Idle Process")
End With
Else
With Me.ListView1.Items.Add(p.ProcessName.ToString)
End With
End If
Next p
'Look for, the index of the process matching the string name of our caption then
For z As Int32 = 0 To ProcessItemCount - 1
itemString = ListView1.Items.Item(z).Text.ToString()
If itemString = pName Then ProcessItemIndex = z
Next
apiLockWindowUpdate(lhWndProcessList) 'Lock the window from updating, to reduce flashing.
apiSendMessage(lhWndParent, WM_COMMAND, hId1, 0) 'AutoClick refresh to update, then immediately sort and delete.
apiSendMessage(lhWndProcessList, LVM_SORTITEMS, 0, Nothing) ' Sort process items alphabetically
apiSendMessage(lhWndProcessList, LVM_DELETEITEM, ProcessItemIndex, 0) 'Delete the process,
apiLockWindowUpdate(False) 'unlock that window
If lhWndParent = 0 Then
If Timer1.Interval <> 800 Then Timer1.Interval = 800 'Set to react fast while task manager is closed.
Else
If Timer1.Interval <> 2500 Then Timer1.Interval = 2500 'Set to a normal looking update speed, while the task manager remains open.
End If
Else
Timer1.Enabled = False 'kill the timer
For i As Int32 = 1 To 7
lhWndDialog = apiFindWindowEx(lhWndParent, lhWndDialog, Nothing, Nothing)
If lhWndProcessList = 0 Then lhWndProcessList = apiFindWindowEx(lhWndDialog, 0, "SysListView32", "Processes")
If lhWndProcessHeader = 0 Then lhWndProcessHeader = apiFindWindowEx(lhWndProcessList, 0, "SysHeader32", Nothing)
Next
apiEnableMenuItem(hMenu, hId1, MF_ENABLED) 're-enable refresh now
apiEnableMenuItem(hMenu, hId2, MF_ENABLED) 're-enable high update speed
apiEnableMenuItem(hMenu, hId3, MF_ENABLED) 're-enable normal update speed
apiEnableMenuItem(hMenu, hId4, MF_ENABLED) 're-enable low update speed
apiEnableMenuItem(hMenu, hId5, MF_ENABLED) 're-enable paused update speed
apiSendMessage(lhWndParent, WM_COMMAND, hId3, 0) 'click normal update speed
apiSendMessage(lhWndParent, WM_COMMAND, hId1, 0) 'click refresh now
apiEnableWindow(lhWndProcessHeader, 1) 'Enable process header
End If
Return True
End Function
End Class
