强制用户更改登录密码

此代码示例演示如何使用 NetUserGetInfo 和 NetUserSetInfo 函数以及 USER_INFO_3 结构强制用户在下次登录时更改 登录 密码。 请注意，从 Windows XP 开始，建议改用 USER_INFO_4 结构。

使用以下代码片段将 USER_INFO_3 结构的 usri3_password_expired 成员设置为非零值：

#ifndef UNICODE
#define UNICODE
#endif

#include <windows.h>
#define INCL_NET
#include <stdio.h>
#include <lm.h>

#pragma comment(lib, "netapi32.lib")

#define USERNAME L"your_user_name"
#define SERVER L"\\\\server"

void main( void )
{
    PUSER_INFO_3 pUsr = NULL;
    NET_API_STATUS netRet = 0;
    DWORD dwParmError = 0;
 //
 // First, retrieve the user information at level 3. This is 
 // necessary to prevent resetting other user information when 
 // the NetUserSetInfo call is made.
 //
   netRet = NetUserGetInfo( SERVER, USERNAME, 3, (LPBYTE *)&pUsr);

   if( netRet == NERR_Success )
   {
     //
     // The function was successful; set the usri3_password_expired value to 
     // a nonzero value. Call the NetUserSetInfo function.
     //
        pUsr->usri3_password_expired = TRUE;
        netRet = NetUserSetInfo( SERVER, USERNAME, 3, (LPBYTE)pUsr, &dwParmError);
    //
    // A zero return indicates success. 
    // If the return value is ERROR_INVALID_PARAMETER, 
    //  the dwParmError parameter will contain a value indicating the 
    //  invalid parameter within the user_info_3 structure. These values 
    //  are defined in the lmaccess.h file.
    //
        if( netRet == NERR_Success )
            printf("User %S will need to change password at next logon", USERNAME);
        else printf("Error %d occurred. Parm Error %d returned.\n", netRet, dwParmError);
    //
    // Must free the buffer returned by NetUserGetInfo.
    //
        NetApiBufferFree( pUsr);
    }
    else printf("NetUserGetInfo failed: %d\n", netRet);
}