Ошибка 31 - вызов CredUIPromptForWindowsCredentialW из макроса VBA - PullRequest
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Ошибка 31 - вызов CredUIPromptForWindowsCredentialW из макроса VBA

0 голосов
/ 02 апреля 2019

Я недавно задал этот вопрос, но удалил из-за недостатка информации. Я попытаюсь спросить это снова, надеюсь, с дополнительной информацией.

Я пытаюсь вызвать функцию Win32 API CredUIPromptForWindowsCredentialsW(), но последние два дня не получалось.

Я также прочитал несколько сообщений, таких как:

VBA: строки Unicode и Windows API

Преобразования типов данных для вызовов API из Visual Basic

Как преобразовать объявления Windows API в VBA для 64-разрядных

Мой код в конце таков, как я думаю, все параметры должны быть определены для вызова, однако это возвращает код ошибки 31:

ERROR_GEN_FAILURE

31 (0x1F)

Устройство, подключенное к системе, не работает. 

Public Declare PtrSafe Function CredUIPromptForWindowsCredentials Lib "credui" Alias "CredUIPromptForWindowsCredentialsW" ( _
ByRef pUiInfo As CREDUI_INFO, _
ByVal dwAuthError As LongPtr, _
ByRef pulAuthPackage As LongPtr, _
ByVal pvInAuthBuffer As Long, _
ByRef ulInAuthBufferSize As LongPtr, _
ByVal ppvOutAuthBuffer As Long, _
ByRef pulOutAuthBufferSize As LongPtr, _
ByVal iSave As Long, _
ByVal dwFlags As Long) _
As Long

Public Declare PtrSafe Function CredUnPackAuthenticationBuffer Lib "credui" Alias "CredUnPackAuthenticationBufferW" ( _
ByRef dwFlags As LongPtr, _
ByRef pAuthBuffer As LongPtr, _
ByRef cbAuthBuffer As LongPtr, _
ByRef pszUserName As LongPtr, _
ByRef pcchMaxUserName As LongPtr, _
ByRef pszDomainName As LongPtr, _
ByRef pcchMaxDomainName As LongPtr, _
ByRef pszPassword As LongPtr, _
ByRef pcchMaxPassword As LongPtr) _
As LongPtr

Public Enum CREDUI_FLAGS
            INCORRECT_PASSWORD = &H1
            DO_NOT_PERSIST = &H2
            REQUEST_ADMINISTRATOR = &H4
            EXCLUDE_CERTIFICATES = &H8
            REQUIRE_CERTIFICATE = &H10
            SHOW_SAVE_CHECK_BOX = &H40
            ALWAYS_SHOW_UI = &H80
            REQUIRE_SMARTCARD = &H100
            PASSWORD_ONLY_OK = &H200
            VALIDATE_USERNAME = &H400
            COMPLETE_USERNAME = &H800
            PERSIST = &H1000
            SERVER_CREDENTIAL = &H4000
            EXPECT_CONFIRMATION = &H20000
            GENERIC_CREDENTIALS = &H40000
            USERNAME_TARGET_CREDENTIALS = &H80000
            KEEP_USERNAME = &H100000
End Enum

Private Const BUFFER_SIZE As Integer = &H100
Private Const ERROR_CANCELLED As Integer = &H4C7
Private Const CREDUIWIN_GENERIC As Integer = &H1
Private Const CREDUIWIN_CHECKBOX As Integer = &H2
Private Const CREDUIWIN_ENUMERATE_CURRENT_USER As Integer = &H200
Private Const CREDUIWIN_IN_CRED_ONLY As Integer = &H20
Private Const CREDUIWIN_AUTHPACKAGE_ONLY As Integer = &H10
Private Const CREDUIWIN_ENUMERATE_ADMINS As Integer = &H100
Private Const CRED_PACK_PROTECTED_CREDENTIALS As Integer = &H1
Private Const CRED_PACK_GENERIC_CREDENTIALS As Integer = &H4
Private Const MAX_USER_NAME As Integer = 100
Private Const MAX_PASSWORD As Integer = 100
Private Const MAX_DOMAIN As Integer = 100

Public Type CREDUI_INFO
    cbSize As Long
    hwndParent As Long
    pszMessageText As LongPtr
    pszCaptionText As LongPtr
    hbmBanner As Long
End Type

Public Function GetCredentials()

    Dim pUiInfo As CREDUI_INFO

    Dim pulAuthPackage As LongPtr
    Dim iSave As Long
    Dim result As Long
    Dim dwFlags As Long
    Dim ulInAuthBufferSize As LongPtr
    Dim pulOutAuthBufferSize As LongPtr
    Dim pvInAuthBuffer As Long
    Dim ppvOutAuthBuffer As Long

    pUiInfo.cbSize = LenB(pUiInfo)
    pUiInfo.hwndParent = 0
    pUiInfo.pszMessageText = StrPtr("message")
    pUiInfo.pszCaptionText = StrPtr("title")

    pulAuthPackage = 0
    iSave = 0
    dwFlags = CREDUIWIN_CHECKBOX + CREDUIWIN_ENUMERATE_CURRENT_USER + CREDUIWIN_ENUMERATE_ADMINS
    ppvOutAuthBuffer = 0
    pvInAuthBuffer = 0
    ulInAuthBufferSize = 0
    pulOutAuthBufferSize = 0

    result = CredUIPromptForWindowsCredentials( _
    pUiInfo, _
    0, _
    authPackage, _
    pvInAuthBuffer, _
    ulInAuthBufferSize, _
    ppvOutAuthBuffer, _
    pulOutAuthBufferSize, _
    iSave, _
    dwFlags)

    MsgBox result

End Function

РЕДАКТИРОВАТЬ: Этот код теперь возвращает 31 код ошибки, благодаря разделу комментариев за указание на некоторые изменения в моих объявлениях. Больше не вылетает слово, но я получаю ошибку 31.

1 Ответ

0 голосов
/ 02 апреля 2019 
'
' CREDUIAPI DWORD CredUIPromptForWindowsCredentialsW(
'  PCREDUI_INFOW pUiInfo,_
'  DWORD         dwAuthError,
'  ULONG         *pulAuthPackage,
'  LPCVOID       pvInAuthBuffer,
'  ULONG         ulInAuthBufferSize,
'  LPVOID        *ppvOutAuthBuffer,
'  ULONG         *pulOutAuthBufferSize,
'  BOOL          *pfSave,
'  DWORD dwFlags
');
'
Public Declare PtrSafe Function CredUIPromptForWindowsCredentials Lib "credui" Alias "CredUIPromptForWindowsCredentialsW" ( _
ByRef pUiInfo As CREDUI_INFO, _
ByVal dwAuthError As Long, _
ByRef pulAuthPackage As LongPtr, _
ByVal pvInAuthBuffer As Any, _
ByVal ulInAuthBufferSize As Long, _
ByRef ppvOutAuthBuffer As Any, _
pulOutAuthBufferSize As LongPtr, _
ByRef iSave As Long, _
ByVal dwFlags As Long) _
As Long

Public Declare PtrSafe Function CredUnPackAuthenticationBuffer Lib "credui" Alias "CredUnPackAuthenticationBufferW" ( _
ByRef dwFlags As LongPtr, _
ByRef pAuthBuffer As LongPtr, _
ByRef cbAuthBuffer As LongPtr, _
ByRef pszUserName As LongPtr, _
ByRef pcchMaxUserName As LongPtr, _
ByRef pszDomainName As LongPtr, _
ByRef pcchMaxDomainName As LongPtr, _
ByRef pszPassword As LongPtr, _
ByRef pcchMaxPassword As LongPtr) _
As LongPtr

Public Enum CREDUI_FLAGS
            INCORRECT_PASSWORD = &H1
            DO_NOT_PERSIST = &H2
            REQUEST_ADMINISTRATOR = &H4
            EXCLUDE_CERTIFICATES = &H8
            REQUIRE_CERTIFICATE = &H10
            SHOW_SAVE_CHECK_BOX = &H40
            ALWAYS_SHOW_UI = &H80
            REQUIRE_SMARTCARD = &H100
            PASSWORD_ONLY_OK = &H200
            VALIDATE_USERNAME = &H400
            COMPLETE_USERNAME = &H800
            PERSIST = &H1000
            SERVER_CREDENTIAL = &H4000
            EXPECT_CONFIRMATION = &H20000
            GENERIC_CREDENTIALS = &H40000
            USERNAME_TARGET_CREDENTIALS = &H80000
            KEEP_USERNAME = &H100000
End Enum

Private Const BUFFER_SIZE As Integer = &H100
Private Const ERROR_CANCELLED As Integer = &H4C7
Private Const CREDUIWIN_GENERIC As Integer = &H1
Private Const CREDUIWIN_CHECKBOX As Integer = &H2
Private Const CREDUIWIN_ENUMERATE_CURRENT_USER As Integer = &H200
Private Const CREDUIWIN_IN_CRED_ONLY As Integer = &H20
Private Const CREDUIWIN_AUTHPACKAGE_ONLY As Integer = &H10
Private Const CREDUIWIN_ENUMERATE_ADMINS As Integer = &H100
Private Const CRED_PACK_PROTECTED_CREDENTIALS As Integer = &H1
Private Const CRED_PACK_GENERIC_CREDENTIALS As Integer = &H4
Private Const MAX_USER_NAME As Integer = 100
Private Const MAX_PASSWORD As Integer = 100
Private Const MAX_DOMAIN As Integer = 100

'typedef struct _CREDUI_INFOA {
'  DWORD   cbSize;
'  HWND    hwndParent;
'  PCSTR   pszMessageText;
'  PCSTR   pszCaptionText;
'  HBITMAP hbmBanner;
'} CREDUI_INFOA, *PCREDUI_INFOA;
Public Type CREDUI_INFO
    cbSize As Long
    hwndParent As LongPtr
    pszMessageText As LongPtr
    pszCaptionText As LongPtr
    hbmBanner As Long
End Type

Public Function GetCredentials()

    Dim pUiInfo As CREDUI_INFO

    Dim pulAuthPackage As LongPtr
    Dim iSave As Long
    Dim result As Long
    Dim dwFlags As Long
    Dim ulInAuthBufferSize As Long
    Dim pulOutAuthBufferSize As LongPtr
    Dim pvInAuthBuffer As LongPtr
    Dim ppvOutAuthBuffer As LongPtr

    pUiInfo.cbSize = LenB(pUiInfo)
    pUiInfo.hwndParent = 0
    pUiInfo.pszMessageText = StrPtr("message")
    pUiInfo.pszCaptionText = StrPtr("title")

    pulAuthPackage = 0
    iSave = 0
    dwFlags = CREDUIWIN_CHECKBOX + CREDUIWIN_ENUMERATE_CURRENT_USER + CREDUIWIN_ENUMERATE_ADMINS

    ppvOutAuthBuffer = 0
    pvInAuthBuffer = 0

    ulInAuthBufferSize = 0
    pulOutAuthBufferSize = 0

    result = CredUIPromptForWindowsCredentials( _
    pUiInfo, _
    0, _
    authPackage, _
    pvInAuthBuffer, _
    ulInAuthBufferSize, _
    ppvOutAuthBuffer, _
    pulOutAuthBufferSize, _
    iSave, _
    dwFlags)

    MsgBox result

End Function

Благодаря Андерсу, я начал работать с последним изменением HWND на LongPtr, код завершения - выше.

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