this thread is now the owner of context.
MainContext.acquire
bool 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 [glib.main_context.MainContext.release] is called as many times as [glib.main_context.MainContext.acquire].
You must be the owner of a context before you can call [glib.main_context.MainContext.prepare], [glib.main_context.MainContext.query], [glib.main_context.MainContext.check], [glib.main_context.MainContext.dispatch], [glib.main_context.MainContext.release].
Since 2.76 context can be null to use the global-default main context.
Returns
true if the operation succeeded, and