I just downloaded the trial version for Delphi XE4 and ran the demo.
1:
Set text to Right To Left alignment, keyboard to Arabic and type some text. The carat is fixed to the right hand side of the screen.
2:
Left To Right text but this time set the keyboard language to Thai. Type some text. The character spacing is not correct. Extra spaces are added where accent type characters are added to the base character.
Are these knows issues and if so will the be corrected?
Is your code based on Uniscribe or are you using the old GetCharacterPlacement routines?