C# Signature:
[DllImport("advapi32.dll", SetLastError=true, CharSet=CharSet.Unicode)]
public static extern bool LogonUser(
string lpszUsername,
string lpszDomain,
string lpszPassword,
LogonType dwLogonType,
LogonProvider dwLogonProvider,
[Out]out IntPtr phToken
);
VB .NET Signature:
Declare Auto Function LogonUser Lib "advapi32.dll" (ByVal lpszUsername As String, _
ByVal lpszDomain As String, ByVal lpszPassword As String, ByVal dwLogonType As Integer, _
ByVal dwLogonProvider As Integer, ByRef phToken As IntPtr) As Integer
User-Defined Types:
public enum LogonType : int
{
Interactive = 2,
Network = 3,
Batch = 4,
Service = 5,
Unlock = 7,
NetworkCleartext = 8,
NewCredentials = 9
}
public enum LogonProvider : int
{
Default = 0,
WinNT35 = 1,
WinNT40 = 2,
WinNT50 = 3
}
Notes:
See MSDN docs for description of various logon types etc.
Tips & Tricks:
Please add some!
Sample Code:
IntPtr hToken = IntPtr.Zero;
if(!LogonUser(username, domain, password, LogonType.Interactive, LogonProvider.Default, out hToken))
throw new Win32Exception(Marshal.GetLastWin32Error());
if(hToken != IntPtr.Zero)
CloseHandle(hToken);
Alternative Managed API:
Do you know one? Please contribute it!
