webbrowser代理c#代码实现
2013-10-30 21:48
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微软webbrowser控件也就是IE插件,他的所有功能就像IE类似,当然设置也是一样的,下面介绍下webbrowser如何设置代理,可不要用这个对抗广告联盟哦
You can change the proxy with InternetSetOption method from the wininet.dll, here is a example to set the proxy:
using System.Runtime.InteropServices;
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)
{
const int INTERNET_OPTION_PROXY = 38;
const int INTERNET_OPEN_TYPE_PROXY = 3;
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));
// Converting structure to IntPtr
Marshal.StructureToPtr(struct_IPI, intptrStruct, true);
bool iReturn = InternetSetOption(IntPtr.Zero, INTERNET_OPTION_PROXY, intptrStruct, Marshal.SizeOf(struct_IPI));
}
private void SomeFunc()
{
RefreshIESettings("192.168.1.200:1010");
System.Object nullObject = 0;
string strTemp = String.Empty;
System.Object nullObjStr = strTemp;
axWebBrowser1.Navigate("http://willstay.tripod.com", ref nullObject, ref nullObjStr, ref nullObjStr, ref nullObjStr);
}
-------------------------------------------------------------------------------------------------------------------------------------
昨 天做的投票机遇到个新问题,昨天开始那个投票开始现在ip地址,每个地址只能投5票/天。如果每次更改ie的连接为代理服务器,那也麻烦死了,如 果改用webclient,那昨天的2个多小时就白费了,上网一通狂收还真找到了办法,这下好办了,建了一个proxy.txt文档,里面放上从网上收到 的代理服务器,然后程序读到一个listbox里面,每次需要更换ip的时候只要单击一次,就可以还一个地址重新投票了。
附上proxy.cs
使用的时候,调用RefreshIESettings
You can change the proxy with InternetSetOption method from the wininet.dll, here is a example to set the proxy:
using System.Runtime.InteropServices;
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)
{
const int INTERNET_OPTION_PROXY = 38;
const int INTERNET_OPEN_TYPE_PROXY = 3;
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));
// Converting structure to IntPtr
Marshal.StructureToPtr(struct_IPI, intptrStruct, true);
bool iReturn = InternetSetOption(IntPtr.Zero, INTERNET_OPTION_PROXY, intptrStruct, Marshal.SizeOf(struct_IPI));
}
private void SomeFunc()
{
RefreshIESettings("192.168.1.200:1010");
System.Object nullObject = 0;
string strTemp = String.Empty;
System.Object nullObjStr = strTemp;
axWebBrowser1.Navigate("http://willstay.tripod.com", ref nullObject, ref nullObjStr, ref nullObjStr, ref nullObjStr);
}
-------------------------------------------------------------------------------------------------------------------------------------
昨 天做的投票机遇到个新问题,昨天开始那个投票开始现在ip地址,每个地址只能投5票/天。如果每次更改ie的连接为代理服务器,那也麻烦死了,如 果改用webclient,那昨天的2个多小时就白费了,上网一通狂收还真找到了办法,这下好办了,建了一个proxy.txt文档,里面放上从网上收到 的代理服务器,然后程序读到一个listbox里面,每次需要更换ip的时候只要单击一次,就可以还一个地址重新投票了。
附上proxy.cs
using System.Runtime.InteropServices;//需要添加这个引用 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); public void RefreshIESettings(string strProxy) { const int INTERNET_OPTION_PROXY = 38; const int INTERNET_OPEN_TYPE_PROXY = 3; 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)); // Converting structure to IntPtr Marshal.StructureToPtr(struct_IPI, intptrStruct, true); bool iReturn = InternetSetOption(IntPtr.Zero, INTERNET_OPTION_PROXY, intptrStruct, Marshal.SizeOf(struct_IPI)); }
使用的时候,调用RefreshIESettings
py.proxy py1 = new proxy(); py1.RefreshIESettings(”221.4.155.51:3128″); webBrowser1.Navigate(”http://www.hfxsy.cn”, null, null, null);
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