{
The LogonUser function attempts to log a user on to the local computer. The local computer is the computer from which LogonUser was called. You cannot use LogonUser to log on to a remote computer. You specify the user with a user name and domain and authenticate the user with a plaintext password. If the function succeeds, you receive a handle to a token that represents the logged-on user. You can then use this token handle to impersonate the specified user or, in most cases, to create a process that runs in the context of the specified user.
BOOL LogonUser(
__in LPTSTR lpszUsername,//UserName
__in_opt LPTSTR lpszDomain,//Domain
__in_opt LPTSTR lpszPassword,//password
__in DWORD dwLogonType,//Logon Type
__in DWORD
dwLogonProvider,//LogonProvider
__out PHANDLE phToken//A
pointer to a handle variable that receives a handle to a token that represents
the specified user
);
}
1 function ValidateUserLogonAPI(const UserName: string; const PassWord: string): boolean; 2 3 var 4 5 Retvar: boolean; 6 7 LHandle: THandle; 8 9 begin 10 11 Retvar := LogonUser(PChar(UserName), 12 13 PChar(string(OP_ADDomain)), PChar(PassWord), 14 15 LOGON32_LOGON_NETWORK,//This logon type is intended for high performance servers to authenticate plaintext passwords. The LogonUser function does not //cache credentials for this logon type. 16 17 LOGON32_PROVIDER_DEFAULT,//Use the standard logon provider for the system. 18 19 LHandle); 20 21 if Retvar then 22 23 CloseHandle(LHandle);//close the handle 24 25 Result := Retvar; 26 27 end;