private bool WinHttpGetProxyForUrl(string destination, ref UnsafeNclNativeMethods.WinHttp.WINHTTP_AUTOPROXY_OPTIONS autoProxyOptions, out string proxyListString)
{
proxyListString = null;
bool flag = false;
UnsafeNclNativeMethods.WinHttp.WINHTTP_PROXY_INFO proxyInfo = new UnsafeNclNativeMethods.WinHttp.WINHTTP_PROXY_INFO();
RuntimeHelpers.PrepareConstrainedRegions();
try
{
flag = UnsafeNclNativeMethods.WinHttp.WinHttpGetProxyForUrl(this.session, destination, ref autoProxyOptions, out proxyInfo);
if (flag)
{
proxyListString = Marshal.PtrToStringUni(proxyInfo.Proxy);
}
}
finally
{
Marshal.FreeHGlobal(proxyInfo.Proxy);
Marshal.FreeHGlobal(proxyInfo.ProxyBypass);
}
return flag;
}
private bool WinHttpGetProxyForUrl(string destination,
ref UnsafeNclNativeMethods.WinHttp.WINHTTP_AUTOPROXY_OPTIONS autoProxyOptions,
out string proxyListString)
{
proxyListString = null;
bool success = false;
UnsafeNclNativeMethods.WinHttp.WINHTTP_PROXY_INFO proxyInfo =
new UnsafeNclNativeMethods.WinHttp.WINHTTP_PROXY_INFO();
// Make sure the strings get cleaned up in a CER (thus unexpected exceptions, like
// ThreadAbortException will not interrupt the execution of the finally block, and we'll not
// leak resources).
RuntimeHelpers.PrepareConstrainedRegions();
try
{
success = UnsafeNclNativeMethods.WinHttp.WinHttpGetProxyForUrl(session,
destination, ref autoProxyOptions, out proxyInfo);
if (success)
{
proxyListString = Marshal.PtrToStringUni(proxyInfo.Proxy);
}
}
finally
{
Marshal.FreeHGlobal(proxyInfo.Proxy);
Marshal.FreeHGlobal(proxyInfo.ProxyBypass);
}
return success;
}