DnsFlushResolverCache 清除windows DNS缓存

DnsFlushResolverCache 清除windows DNS缓存

 

效果等同于ipconfig /flushdns 命令。
DnsFlushResolverCache 函数是在Dnsapi.dll导出,该函数没有任何参数。MSDN中找不到他,看来是个Undocumented函数,函数原型:

BOOL WINAPI DnsFlushResolverCache(VOID);

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BOOL __stdcall DnsFlushResolverCache() 
    BOOL bRet = FALSE; 
   
    typedef BOOL (WINAPI *PfuncDnsFlushResolverCache)(VOID); 
    HMODULE hDnsModule = LoadLibrary( _T("dnsapi.dll") ); 
    if ( hDnsModule != NULL )  
    
        PfuncDnsFlushResolverCache pFlushFun = GetProcAddress( hDnsModule, "DnsFlushResolverCache" ); 
        if ( pFlushFun != NULL ) 
        
            pFlushFun(); 
            bRet = TRUE; 
        
   
        FreeLibrary( hDnsModule ); 
    
   
    return bRet; 

  

 

vb6 申明:

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Private Declare Function DnsFlushResolverCache Lib "dnsapi.dll" () As Long
posted @ 2022-12-27 14:44  bonelee  阅读(174)  评论(0编辑  收藏  举报