为webbrowser设置代理:
public struct struct_internet_proxy_info
{
public int dwaccesstype;
public intptr proxy;
public intptr proxybypass;
};
[dllimport("wininet.dll", setlasterror = true)]
private static extern bool internetsetoption(intptr hinternet, int dwoption, intptr lpbuffer, int lpdwbufferlength);
private void refreshiesettings(string strproxy)//strproxy为代理ip:端口
{
const int internet_option_proxy = 38;
const int internet_open_type_proxy = 3;
const int internet_open_type_direct = 1;
struct_internet_proxy_info struct_ipi;
// filling in structure
struct_ipi.dwaccesstype = internet_open_type_proxy;
struct_ipi.proxy = marshal.stringtohglobalansi(strproxy);
struct_ipi.proxybypass = marshal.stringtohglobalansi("local");
// allocating memory
intptr intptrstruct = marshal.alloccotaskmem(marshal.sizeof(struct_ipi));
if (string.isnullorempty(strproxy) || strproxy.trim().length == 0)
{
strproxy = string.empty;
struct_ipi.dwaccesstype = internet_open_type_direct;
}
// converting structure to intptr
marshal.structuretoptr(struct_ipi, intptrstruct, true);
bool ireturn = internetsetoption(intptr.zero, internet_option_proxy, intptrstruct, marshal.sizeof(struct_ipi));
}
使用:refreshiesettings("xxx.xxx.xxx.xxx:xx");
完美方法:
/*完整解析
public class ieproxy
{
private const int internet_option_proxy = 38;
private const int internet_open_type_proxy = 3;
private const int internet_open_type_direct = 1;
private string proxystr;
[dllimport("wininet.dll", setlasterror = true)]
private static extern bool internetsetoption(intptr hinternet, int dwoption, intptr lpbuffer, int lpdwbufferlength);
public struct struct_internet_proxy_info
{
public int dwaccesstype;
public intptr proxy;
public intptr proxybypass;
}
private bool internetsetoption(string strproxy)
{
int bufferlength;
intptr intptrstruct;
struct_internet_proxy_info struct_ipi;
if (string.isnullorempty(strproxy) || strproxy.trim().length == 0)
{
strproxy = string.empty;
struct_ipi.dwaccesstype = internet_open_type_direct;
}
else
{
struct_ipi.dwaccesstype = internet_open_type_proxy;
}
struct_ipi.proxy = marshal.stringtohglobalansi(strproxy);
struct_ipi.proxybypass = marshal.stringtohglobalansi("local");
bufferlength = marshal.sizeof(struct_ipi);
intptrstruct = marshal.alloccotaskmem(bufferlength);
marshal.structuretoptr(struct_ipi, intptrstruct, true);
return internetsetoption(intptr.zero, internet_option_proxy, intptrstruct, bufferlength);
}
public ieproxy(string strproxy)
{
this.proxystr = strproxy;
}
//设置代理
public bool refreshiesettings()
{
return internetsetoption(this.proxystr);
}
//取消代理
public bool disableieproxy()
{
return internetsetoption(string.empty);
}
}
*/
如对本文有疑问,
点击进行留言回复!!
相关文章:
-
-
C#实现猜数字游戏
本文实例为大家分享了c#实现猜数字游戏具体代码,供大家参考,具体内容如下给定一个0-100的随机数字猜其大小题目样式:电脑产生一个0到100之间的随机数字,并且...
[阅读全文]
-
-
C# 可空类型的具体使用
在项目中我们经常会遇到可为空类型,那么到底什么是可为空类型呢?下面我们将从4个方面为大家剖析。1、可空类型基础知识顾名思义,可空类型指的就是某个对象类型可以为空...
[阅读全文]
-
-
-
C#实现猜数字小游戏
本文实例为大家分享了c#实现猜数字小游戏的具体代码,供大家参考,具体内容如下效果如图:代码:using system;using system.collecti...
[阅读全文]
-
-
C#实现简单俄罗斯方块
最近在看《.net游戏编程入门经典 c#篇》 第一章介绍了如何制作俄罗斯方块,自己试了试按照书上的步骤,可算是完成了。于是写下这篇文章留作纪念。1.类的设计在充...
[阅读全文]
-
-
网友评论