[原创]vc++实现删除??httponly cookie | 学步园

《vc++删除cookie方法》

InternetSetCookie能修改普通cookie值，但是此函数太老，在win7下高版本Wininet.DLL中无法让HTTPONLY类型的cookie过期，
需使用InternetSetCookieEx才能成功，在vs2010下直接用该函数，vc6下自己加载模块查找函数，
vc6下查找使用该函数删除cookie如下：

HINSTANCE hInst = LoadLibrary("Wininet.DLL");
if(hInst) {
 typedef BOOL (WINAPI *pfnInternetSetCookieEx)(LPCSTR, LPCSTR, LPCSTR, DWORD, DWORD);
 pfnInternetSetCookieEx InternetSetCookieEx = NULL;
 InternetSetCookieEx = (pfnInternetSetCookieEx)GetProcAddress(hInst, "InternetSetCookieExA");
 //InternetSetCookieEx(m_url, NULL, " phpMyAdmin=; expires=Thu, 01-Jan-1900 00:00:01 GMT", INTERNET_COOKIE_HTTPONLY, NULL);
 InternetSetCookieEx(m_url, NULL, " phpMyAdmin=; expires=Thu, 01-Jan-1900 00:00:01 GMT", INTERNET_COOKIE_HTTPONLY, NULL);
 FreeLibrary(hInst);
}

注意，要分开设置cookie字段，不能一次设置多个字段，否则不成功，下面的语句只有第一个字段被设置成功，其它字段均不成功！
InternetSetCookieEx(m_url, NULL, " phpMyAdmin=; pma_mcrypt_iv=; pmaUser-1=; pmaPass-1=; expires=Thu, 01-Jan-1900 00:00:01 GMT", INTERNET_COOKIE_HTTPONLY, NULL);
正确应该这样写，
InternetSetCookieEx(m_url, NULL, " phpMyAdmin=; expires=Thu, 01-Jan-1900 00:00:01 GMT", INTERNET_COOKIE_HTTPONLY, NULL);
InternetSetCookieEx(m_url, NULL, " pma_mcrypt_iv=; expires=Thu, 01-Jan-1900 00:00:01 GMT", INTERNET_COOKIE_HTTPONLY, NULL);
InternetSetCookieEx(m_url, NULL, " pmaUser-1=; expires=Thu, 01-Jan-1900 00:00:01 GMT", INTERNET_COOKIE_HTTPONLY, NULL);
InternetSetCookieEx(m_url, NULL, " pmaPass-1=; expires=Thu, 01-Jan-1900 00:00:01 GMT", INTERNET_COOKIE_HTTPONLY, NULL);