acquire

Tries to become the owner of the specified context. If some other thread is the owner of the context, returns false immediately. Ownership is properly recursive: the owner can require ownership again and will release ownership when method@GLib.MainContext.release is called as many times as method@GLib.MainContext.acquire.

You must be the owner of a context before you can call method@GLib.MainContext.prepare, method@GLib.MainContext.query, method@GLib.MainContext.check, method@GLib.MainContext.dispatch, method@GLib.MainContext.release.

Since 2.76 @context can be null to use the global-default main context.