dolphin-emu/dolphin — pull request #1631 by lioncash (2014-12-02 04:00:02+00:00)
Title: DolphinWX: Specify for wxID_ANY where -1 is used in controls

Both are synonyms for one another, but wxID_ANY is more descriptive. Some cases where 1 was used were also changed over (form instantiations) because these aren't needed, and were just cargo-culted around during the UI's history, it seems.