A variable to control if extended IME text support is enabled.
Defined in SDL_hints.h
#define SDL_HINT_IME_SUPPORT_EXTENDED_TEXT "SDL_IME_SUPPORT_EXTENDED_TEXT"
If enabled then SDL_TextEditingExtEvent will be issued if the text would be truncated otherwise. Additionally SDL_TextInputEvent will be dispatched multiple times so that it is not truncated.
The variable can be set to the following values: