I have a .Net 2.0 Windows Forms application which needs to be run as a specific user (right click, run as).
I need to be able to check which user has launched it and stop if it is not the specific user.
All the examples I have found show the logged in user.
How can I access the application executing username?
Based on this, with a little bit of help from this, I came up with this:
Imports System.Runtime.InteropServices
Imports System.Security.Principal
Public Class GetProcessOwner
<DllImport("advapi32.dll", SetLastError:=True)> _
Public Shared Function OpenProcessToken(ByVal processHandle As IntPtr, ByVal desiredAccess As Integer, ByRef tokenHandle As IntPtr) As Boolean
End Function
<DllImport("kernel32.dll", SetLastError:=True)> _
Public Shared Function CloseHandle(ByVal hObject As IntPtr) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function
Private Const TokenQuery As UInteger = &H8
Public Shared Function GetProcessOwner(ByVal processName As String) As String
Dim ownerName As String = String.Empty
For Each p As Process In Process.GetProcesses()
If p.ProcessName = processName Then
Dim ph As IntPtr = IntPtr.Zero
Try
OpenProcessToken(p.Handle, TokenQuery, ph)
Dim wi As WindowsIdentity = New WindowsIdentity(ph)
ownerName = wi.Name
Catch ex As Exception
ownerName = String.Empty
Finally
If ph <> IntPtr.Zero Then
CloseHandle(ph)
End If
End Try
End If
Next
Return ownerName
End Function
End Class