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Can't get GetLastError() to return a value?!
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Fonctions Windows API
Versions des environnements
Visual FoxPro:
VFP 8 SP1
OS:
Windows XP SP2
Network:
Windows 2003 Server
Database:
Visual FoxPro
Divers
Thread ID:
01101255
Message ID:
01101275
Vues:
9
>I'm trying to use GetLastError API call to figure out why a call to LogonUser may have failed. However, no matter what I do, GetLastError always returns 0. LogonUser will return 1 when I enter a valid username/password. If I enter the same username with a bogus password, LogonUser returns a 0 indicating there was a problem but GetLastError() still returns a 0.
>
>I've included my code below. Does anyone know what I might be doing wrong?
>
>
>DECLARE integer GetLastError IN kernel32
>DECLARE integer CloseHandle IN kernel32 integer hObject
>DECLARE integer LogonUser IN advapi32 string lpzUser, string lpzDomain,;
>  string lpzPass, integer dwLogonType, integer dwLogonProvider,;
>  integer @phToken
>
>
>nToken = 0
>
>IF LogonUser("user_name","domain.com",INPUTBOX("Password:"),3,0,@nToken) = 0
>   = MESSAGEBOX("Error: " + TRANSFORM(GetLastError(),"99999999"))
>ELSE
>   = CloseHandle(nToken)
>ENDIF
>
>RELEASE ALL
>
>
>Thanks for your input!

Rodd,

GetLastError would not help you here, I believe. It is used to determine failure in the function, but I don't think it could be used in this context.
If it's not broken, fix it until it is.


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