About http proxy

Question

i'm a Chinese developer, and i'm using .sln project with vcpkg.

I've noticed that when I set VS2022 to English and create a .sln project, my project doesn't use the proxy (can't access github/microsoft/vcpkg). But if I set VS2022 to Chinese, the created .sln project can access github through the proxy.

i want know if i could force my project to use proxy?

Answer 1

Yes, you can force your project and vcpkg to use a proxy. Visual Studio’s display language shouldn’t affect proxy behavior, so the difference you’re seeing is likely due to environment variables or system proxy settings applied under one language profile but not the other.

To ensure your project always uses the proxy, set the proxy variables globally:

Windows (System/User Environment Variables):

HTTP_PROXY=http://your-proxy:port
HTTPS_PROXY=http://your-proxy:port

vcpkg-specific proxy setting:

vcpkg_proxy=http://your-proxy:port

After setting these, restart Visual Studio so the IDE and all build tools pick up the values.

If you're using CMake, you can also force it with:

setx HTTP_PROXY http://your-proxy:port
setx HTTPS_PROXY http://your-proxy:port

This ensures vcpkg, Git, and any tools launched by VS will route through the proxy regardless of the VS language setting.