StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POHow do I find out the browser's proxy settings?
text
Body
copied!<p>I am writing a command-line tool for Windows that uses libcurl to download files from the internet.</p> <p>Obviously, the downloading doesn't work when the user is behind a proxy server, because the proxy needs to be configured. I want to keep my tool as simple as possible however, and not have to burden the user with having to configure the proxy. My tool doesn't even have a config file, so the user would otherwise have to pass in the proxy settings on every command, or set an environment variable or somesuch -- way too much hassle.</p> <p>So I thought, everyone's browser will usually already be set up properly, proxy configured and everything. This will be true for even the most basic user because otherwise "their internet wouldn't work".</p> <p>So I figure that I can find out whether to use a proxy by looking at IE's proxy settings.</p> <p>How do I go about this? More specifically:</p> <ul> <li>Is there one set of "proxy settings" in Windows, used by all browsers (probably IE's), or would I have to write different routines for IE, Firefox, Opera, etc?</li> <li>I know that I can probably read the values directly out of the appropriate registry locations if they are configured manually, but does this also work with "automatically detect proxy server?" Do I even have to bother with that option, or is it (almost) never used?</li> </ul> <p>Before people start suggesting alternatives: I'm using C, so I'm limited to the Win32 API, and I really really want to keep using C and libcurl.</p>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload