Get user specified long date format in UWP

Question

I want to convert a date to the user set long date format. The Current Culture is en-US, but the user is able to set a long date format of his/her choice in Control panel -> Reg

Answer 1

Unfortunately, the UWP API's don't expose the Regional Settings; having said that I did find a working solution a while back, though I haven't tested it with Creators Update so can't confirm if it still works!

Update: I've found a non-hacky way of doing this, using the GetLocaleInfoEx Win32 API.