' this code does not work in vb.net
C# Signature:
[DllImport("advapi32.dll")]
static extern TODO CreateProcessWithLogonW(TODO);
VB Signature:
<DllImport("advapi32.dll", EntryPoint:="CreateProcessWithLogonW", SetLastError:=True, CharSet:=CharSet.Unicode, CallingConvention:=CallingConvention.StdCall)>
Public Shared Function CreateProcessWithLogonW( _
ByVal lpUsername As String, _
ByVal lpDomain As String, _
ByVal lpPassword As String, _
ByVal dwLogonFlags As Integer, _
ByVal lpApplicationName As String, _
ByVal lpCommandLine As String, _
ByVal dwCreationFlags As Integer, _
ByVal lpEnvironment As IntPtr, _
ByVal lpCurrentDirectory As String, _
ByRef lpStartupInfo As STARTUPINFO, _
ByRef lpProcessInformation As PROCESS_INFORMATION _
) As Integer
End Function
User-Defined Types:
STARTUPINFO, PROCESS_INFORMATION
Notes:
None.
Tips & Tricks:
Please add some!
Sample Code:
Private Const LOGON_WITH_PROFILE = &H1
Public Shared Function OpenAppAsUser(ByVal username As String, ByVal domainname As String, ByVal password As String) As Boolean
'The Windows NT user token.
Dim lpAppName As String
Dim appExe As SR.[Assembly]
Dim pi As PROCESS_INFORMATION
Dim si As STARTUPINFO
Dim fResult As Boolean
Dim dwCreationFlags As Integer = Nothing
Dim lpCommandLine As String = Nothing
Dim lpEnvironment As IntPtr
Dim lpCurrentDirectory As String = Nothing
Dim ret As Integer
appExe = SR.Assembly.GetEntryAssembly()
lpAppName = appExe.Location
si.cb = Len(si)
si.lpTitle = appExe.GetName().Name
' call the Win32 API to open the application under the userID passed in
' Implicit Integer to Boolean conversion. CreateProcessWithLogonW returns 0 (False) when it fails.
fResult = CreateProcessWithLogonW(username, domainname, password, LOGON_WITH_PROFILE, lpAppName, lpCommandLine, dwCreationFlags, lpEnvironment, lpCurrentDirectory, si, pi)
' if the logon fails then we need to generate an error
If Not fResult Then
' get the last error from Windows
ret = Marshal.GetLastWin32Error
' if the userid, password, or domain is bad we can display a friendly message
If ret = 1326 Then
MessageBox.Show("Invalid UserID or Password entered. Please try again.", "Logon Error")
Return False
Else
' the error code is unexpected so throw an exception to be logged.
Dim retMsg = GetErrorMessage(ret)
Throw New MAE.BaseApplicationException("Error occurred: " + ret.ToString() + " - " + retMsg)
Return False
End If
End If
Return True
End Function
Alternative Managed API:
