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枚举当前系统用户(使用NetUserEnum API枚举)

using System.Runtime.InteropServices;
 
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct USER_INFO_0
{
    public string Username;
}
 
[DllImport("Netapi32.dll")]
extern static int NetUserEnum(
    [MarshalAs(UnmanagedType.LPWStr)]
    string servername,
    int level,
    int filter,
    out IntPtr bufptr,
    int prefmaxlen,
    out int entriesread,
    out int totalentries,
    out int resume_handle);
 
[DllImport("Netapi32.dll")]
extern static int NetApiBufferFree(IntPtr Buffer);
 
private void button1_Click(object senderEventArgs e)
{
    int EntriesRead;
    int TotalEntries;
    int Resume;
    IntPtr bufPtr;
 
    NetUserEnum(null02out bufPtr, -1out EntriesRead,
        out TotalEntries, out Resume);
    if (EntriesRead > 0)
    {
        USER_INFO_0[] Users = new USER_INFO_0[EntriesRead];
        IntPtr iter = bufPtr;
        for (int i = 0; i < EntriesRead; i++)
        {
            Users[i] = (USER_INFO_0)Marshal.PtrToStructure(iter,
                typeof(USER_INFO_0));
            iter = (IntPtr)((int)iter + Marshal.SizeOf(typeof(USER_INFO_0)));
            textBox1.AppendText(Users[i].Username + "/r/n");
        }
        NetApiBufferFree(bufPtr);
    }
}

http://blog.csdn.net/zswang/article/details/1576495

枚举当前系统用户(使用NetUserEnum API枚举)