c# 获取当前系统中所有用户信息

Question

如题~!

Answer 1

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 sender, EventArgs e)
{
    int EntriesRead;
    int TotalEntries;
    int Resume;
    IntPtr bufPtr;    NetUserEnum(null, 0, 2, out bufPtr, -1, out 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);
    }
}