1. Related functions:
Hinternet winapi internetopen (
Lpctstr lpszagent,
DWORD dwaccesstype,
Lpctstr lpszproxy,
Lpctstr lpszproxybypass,
DWORD dwflags );
Bool winapi internetsetoption (
Hinternet,
DWORD dwoption,
Lpvoid lpbuffer,
DWORD dwbufferlength );
2. Related Structure
Typedef struct {
DWORD dwaccesstype;
Lpctstr lpszproxy;
Lpctstr lpszproxybypass;
} Internet_proxy_info, * lpinternet_proxy_info;
3. Use a Proxy Server
(1) set dwaccesstype to internet_open_type_proxy.
(2) Set lpszproxy
(A) The proxy format must be [<protocol >=] [<scheme >:///] <proxy> [: <port>].
(B) Protocol, scheme: //, And: port are optional. If the three are ignored, they are
HTTP, http: //,: 80. The default value is HTTP proxy.
(C) multiple proxies must be separated by spaces.
(D) Use of common proxies is as follows:
HTTP:
HTTP = http: // proxyserver: Port
FTP:
FTP: ftp: // proxyserver: Port
Gopher
Gopher = http: // proxyserver: Port
Socks = proxyserver: Port
The first three of them can be found in msdn, But I found N locations in the fourth one. in addition, it should be noted that socks proxy can be used only when IE is installed.
