Commit 63197c433814599d3a211cbed89b3a99133a2c8d

Sam Lantinga 2019-08-02T17:19:50

Fix bug where the wrong button was the default in the old message box because buttons were added backwards, breaking the indexing used by GetButtonIndex. Add messagebox flags to explicilty request left-to-right button order or right-to-left. If neither is specified it'll be some platform default.