disable Start menu button
Harsh Trivedi
We are developing application in VS .NET 2005 + C# + .NET CF 2.0 SP1
My user requirement is ... to disable the Start menu button (Upper left
side, to invoke the start up menu) . This way we can prevent the user to
click on any other program or control panel when our application is running.
Is there a way to achieve this?
Thanks in advance
--
With Best Regards,
Harsh Trivedi
Harsh Trivedi
Hurrey, this worked for me...to disable the start menu...
ShowWindow(FindWindow("HHTaskBar", null), 1); //0=hide, 1=show
On the same track, if anyone can sent source code to set start button as
visible false.... :)
--
With Best Regards,
Harsh Trivedi
"Harsh Trivedi" <harsh....@gatewaytechnolabs.com> wrote in message
news:O3ue1s$XHHA...@TK2MSFTNGP05.phx.gbl...
Paul G. Tobey [eMVP]
that window so Alt+Tab doesn't allow the user to switch applications.
You'll basically have to P/Invoke to those functions (ShowWindow,
FindWindow, EnableWindow), to accomplish this operation.
Paul T.
"Harsh Trivedi" <harsh....@gatewaytechnolabs.com> wrote in message
news:uGFEBOAY...@TK2MSFTNGP04.phx.gbl...
Kay-Christian Wessel
Kay
Imports System.Runtime.InteropServices
Public Class BarControl
<DllImport("coredll.dll", EntryPoint:="GetForegroundWindow",
SetLastError:=True)> Private Shared Function GetForegroundWindow() As IntPtr
End Function
<DllImport("aygshell.dll", EntryPoint:="SHFullScreen", SetLastError:=True)>
Private Shared Function SHFullScreen(ByVal hwndRequester As IntPtr, ByVal
dwState As Integer) As Boolean
End Function
<DllImport("coredll.dll", EntryPoint:="EnableWindow")> Private Shared
Function EnableWindow(ByVal hwnd As IntPtr, ByVal bEnable As Boolean) As
Boolean
End Function
<DllImport("coredll.dll", EntryPoint:="FindWindow")> Private Shared Function
FindWindow(ByVal lpClassName As String, ByVal lpWindowName As String) As
IntPtr
End Function
Private Const SHFS_SHOWSTARTICON As Integer = &H10
Private Const SHFS_HIDESTARTICON As Integer = &H20
Private Const SHFS_HIDESIPBUTTON As Integer = &H8
Private Const SHFS_SHOWSIPBUTTON As Integer = &H4
Private Const SHFS_SHOWTASKBAR As Integer = &H1
Private Const SHFS_HIDETASKBAR As Integer = &H2
Private Shared Function SetTaskBarEnabled(ByVal bEnabled As Boolean) As
Boolean
Dim hwnd As IntPtr = FindWindow("HHTaskBar", Nothing)
If Not hwnd.Equals(IntPtr.Zero) Then
If bEnabled Then
Return EnableWindow(hwnd, True)
Else
Return EnableWindow(hwnd, False)
End If
End If
Return True
End Function
Private Shared Function SetTaskbarVisible(ByVal visible As Boolean) As
Boolean
Dim hwnd As IntPtr = FindWindow("HHTaskBar", Nothing)
If Not hwnd.Equals(IntPtr.Zero) Then
If visible Then
Return SHFullScreen(hwnd, SHFS_SHOWTASKBAR)
Else
Return SHFullScreen(hwnd, SHFS_HIDETASKBAR)
End If
End If
End Function
Private Shared Function SetStartButtonVisible(ByVal visible As Boolean) As
Boolean
Dim hwnd As IntPtr = GetForegroundWindow()
If Not hwnd.Equals(IntPtr.Zero) Then
If visible Then
Return SHFullScreen(hwnd, SHFS_SHOWSTARTICON)
Else
Return SHFullScreen(hwnd, SHFS_HIDESTARTICON)
End If
End If
End Function
Private Shared Function SetSIPVisible(ByVal visible As Boolean) As Boolean
Dim hwnd As IntPtr = GetForegroundWindow()
If Not hwnd.Equals(IntPtr.Zero) Then
If visible Then
Return SHFullScreen(hwnd, SHFS_HIDESIPBUTTON)
Else
Return SHFullScreen(hwnd, SHFS_HIDESIPBUTTON)
End If
End If
End Function
Public Shared Sub ShowTaskBar()
SetTaskBarEnabled(True)
SetTaskbarVisible(True)
End Sub
Public Shared Sub HideTaskBar()
SetTaskbarVisible(False)
SetTaskBarEnabled(False)
End Sub
Public Shared Sub ShowSIP()
SetSIPVisible(True)
End Sub
Public Shared Sub HideSIP()
SetSIPVisible(False)
End Sub
Public Shared Sub HideStartButton()
SetStartButtonVisible(False)
End Sub
Public Shared Sub ShowStartButton()
SetStartButtonVisible(True)
End Sub
End Class
Ian Matthysen
I have tested this code and it works beautifully!
However, it introduces another problem. The mobile app I'm developing needs the built-in camera to take photos. But since the methods in the code segment disables the start menu, taskbar and SIP, it also disables the camera button of the mobile device in the process.
I have tested which of the methods enables and disables the camera as a result, and it turned out to be ShowTaskBar() and HideTaskBar() respectively. Although I can use these methods to enable or disable the camera, this is not an option, since the user must not be able to access the taskbar while my app is running.
My question: Is there a way I can enable ONLY the camera button on the device and disable it again after taking a photo?
Any help will be very much appreciated! Thanks people! :)
Ian (",)
> On Tuesday, March 06, 2007 9:27 AM Harsh Trivedi wrote:
> Hi,
>
> We are developing application in VS .NET 2005 + C# + .NET CF 2.0 SP1
>
> My user requirement is ... to disable the Start menu button (Upper left
> side, to invoke the start up menu) . This way we can prevent the user to
> click on any other program or control panel when our application is running.
>
> Is there a way to achieve this?
>
> Thanks in advance
>
> --
> With Best Regards,
>
> Harsh Trivedi
>> Hi,
>>
>> Hurrey, this worked for me...to disable the start menu...
>> ShowWindow(FindWindow("HHTaskBar", null), 1); //0=hide, 1=show
>>
>> On the same track, if anyone can sent source code to set start button as
>> visible false.... :)
>>
>> --
>> With Best Regards,
>>
>> Harsh Trivedi
>>
>>
>>
>> "Harsh Trivedi" <harsh....@gatewaytechnolabs.com> wrote in message
>> news:O3ue1s$XHHA...@TK2MSFTNGP05.phx.gbl...
>>> Yes, that's one thing that you'd need to do. You'd also need to disable
>>> that window so Alt+Tab doesn't allow the user to switch applications.
>>> You'll basically have to P/Invoke to those functions (ShowWindow,
>>> FindWindow, EnableWindow), to accomplish this operation.
>>>
>>> Paul T.
>>>
>>> "Harsh Trivedi" <harsh....@gatewaytechnolabs.com> wrote in message
>>> news:uGFEBOAY...@TK2MSFTNGP04.phx.gbl...