如何顯示Windows登錄對話框？

Question

如何顯示Windows登錄對話框whitin a windows WPF application？

Answer 1

類似於Show Authentication dialog in C# for windows Vista/7

CredUIPromptForWindowsCredentials

Answer 2

我寫了一個輔助類此。它顯示了「XP樣式」登錄對話框，不是你在你的屏幕截圖顯示了一個，但你可以從那裏上顯示「新建」對話框，太：

public static class UserHelper 
{ 
    [Flags] 
    public enum CREDUI_FLAGS 
    { 
     INCORRECT_PASSWORD = 0x1, 
     DO_NOT_PERSIST = 0x2, 
     REQUEST_ADMINISTRATOR = 0x4, 
     EXCLUDE_CERTIFICATES = 0x8, 
     REQUIRE_CERTIFICATE = 0x10, 
     SHOW_SAVE_CHECK_BOX = 0x40, 
     ALWAYS_SHOW_UI = 0x80, 
     REQUIRE_SMARTCARD = 0x100, 
     PASSWORD_ONLY_OK = 0x200, 
     VALIDATE_USERNAME = 0x400, 
     COMPLETE_USERNAME = 0x800, 
     PERSIST = 0x1000, 
     SERVER_CREDENTIAL = 0x4000, 
     EXPECT_CONFIRMATION = 0x20000, 
     GENERIC_CREDENTIALS = 0x40000, 
     USERNAME_TARGET_CREDENTIALS = 0x80000, 
     KEEP_USERNAME = 0x100000, 
    } 


    public enum CredUIReturnCodes 
    { 
     NO_ERROR = 0, 
     ERROR_CANCELLED = 1223, 
     ERROR_NO_SUCH_LOGON_SESSION = 1312, 
     ERROR_NOT_FOUND = 1168, 
     ERROR_INVALID_ACCOUNT_NAME = 1315, 
     ERROR_INSUFFICIENT_BUFFER = 122, 
     ERROR_INVALID_PARAMETER = 87, 
     ERROR_INVALID_FLAGS = 1004, 
     ERROR_BAD_ARGUMENTS = 160 
    } 


    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] 
    public struct CREDUI_INFO 
    { 
     public int cbSize; 
     public IntPtr hwndParent; 
     public string pszMessageText; 
     public string pszCaptionText; 
     public IntPtr hbmBanner; 
    } 


    [DllImport("credui", EntryPoint = "CredUIPromptForCredentialsW", CharSet = CharSet.Unicode)] 
    private static extern CredUIReturnCodes CredUIPromptForCredentials(ref CREDUI_INFO creditUR, string targetName, IntPtr reserved1, int iError, StringBuilder userName, int maxUserName, StringBuilder password, int maxPassword, [MarshalAs(UnmanagedType.Bool)] ref bool pfSave, CREDUI_FLAGS flags); 

    [DllImport("credui", EntryPoint = "CredUIParseUserNameW", CharSet = CharSet.Unicode)] 
    private static extern CredUIReturnCodes CredUIParseUserName(string userName, StringBuilder user, int userMaxChars, StringBuilder domain, int domainMaxChars); 

    const int MAX_USER_NAME = 100; 
    const int MAX_PASSWORD = 100; 
    const int MAX_DOMAIN = 100; 

    public static CredUIReturnCodes PromptForCredentials(System.Windows.Window parentWindow, ref CREDUI_INFO creditUI, string targetName, int netError, out string domainName, out string userName, out string password, ref bool save, CREDUI_FLAGS flags) 
    { 
     userName = String.Empty; 
     domainName = String.Empty; 
     password = String.Empty; 

     creditUI.cbSize = Marshal.SizeOf(creditUI); 
     creditUI.hwndParent = new WindowInteropHelper(parentWindow).Handle; 

     StringBuilder user = new StringBuilder(MAX_USER_NAME); 
     StringBuilder pwd = new StringBuilder(MAX_PASSWORD); 
     CredUIReturnCodes result = CredUIPromptForCredentials(ref creditUI, targetName, IntPtr.Zero, netError, user, MAX_USER_NAME, pwd, MAX_PASSWORD, ref save, flags); 
     if (result == CredUIReturnCodes.NO_ERROR) 
     { 
      string tempUserName = user.ToString(); 
      string tempPassword = pwd.ToString(); 

      StringBuilder userBuilder = new StringBuilder(); 
      StringBuilder domainBuilder = new StringBuilder(); 

      CredUIReturnCodes returnCode = CredUIParseUserName(tempUserName, userBuilder, int.MaxValue, domainBuilder, int.MaxValue); 
      switch (returnCode) 
      { 
       case CredUIReturnCodes.NO_ERROR: 
        userName = userBuilder.ToString(); 
        domainName = domainBuilder.ToString(); 
        password = tempPassword; 
        return returnCode; 

       case CredUIReturnCodes.ERROR_INVALID_ACCOUNT_NAME: 
        userName = tempUserName; 
        domainName = String.Empty; 
        password = tempPassword; 
        return returnCode; 

       default: 
        return returnCode; 
      } 
     } 

     return result; 
    } 
} 

我使用以下方法調用此方法：

UserHelper.CREDUI_INFO info = new UserHelper.CREDUI_INFO(); 
info.pszCaptionText = host; 
info.pszMessageText = "Please log in:"; 

UserHelper.CREDUI_FLAGS flags = UserHelper.CREDUI_FLAGS.GENERIC_CREDENTIALS | 
           UserHelper.CREDUI_FLAGS.ALWAYS_SHOW_UI | 
           UserHelper.CREDUI_FLAGS.DO_NOT_PERSIST |            
           UserHelper.CREDUI_FLAGS.VALIDATE_USERNAME | 
           UserHelper.CREDUI_FLAGS.INCORRECT_PASSWORD; 

UserHelper.CredUIReturnCodes result = UserHelper.PromptForCredentials(this, ref info, host, 0, out domainName, out userName, out password, ref saveSettings, flags);