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  • C# 更改 WebBrowser UserAgent

    经在Server2008R2,Windows7,Windows10测试,只要修改相应的 User Agent 即可实现,参考代码(以IE8模式工作)如下:

    var ieversion = (new WebBrowser()).Version.Major;
                string ua = "Mozilla/4.0 (MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)";
                if (ieversion <= 8)
                    ua = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)";
    [DllImport("urlmon.dll", CharSet = CharSet.Ansi)]
            private static extern int UrlMkSetSessionOption(int dwOption, string pBuffer, int dwBufferLength, int dwReserved);
    
            [DllImport("urlmon.dll", CharSet = CharSet.Ansi)]
            private static extern int UrlMkGetSessionOption(int dwOption, StringBuilder pBuffer, int dwBufferLength, out int pdwBufferLength, int dwReserved);
    
            const int URLMON_OPTION_USERAGENT = 0x10000001;
            const int URLMON_OPTION_USERAGENT_REFRESH = 0x10000002;
    
         private void setUserAgent(string userAgent)
            {
                UrlMkSetSessionOption(URLMON_OPTION_USERAGENT_REFRESH, null, 0, 0);
                UrlMkSetSessionOption(URLMON_OPTION_USERAGENT, userAgent, userAgent.Length, 0);
            }
    
            private string getUserAgent()
            { 
                var buffer = new StringBuilder(255);
                var returnLength = 0;
                var ret = UrlMkGetSessionOption(URLMON_OPTION_USERAGENT, buffer, buffer.Capacity, out returnLength, 0);
                return buffer.ToString();
            }
    桂棹兮兰桨,击空明兮溯流光。
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  • 原文地址:https://www.cnblogs.com/nanfei/p/14864043.html
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