Set the rectangle used to type Unicode text inputs.
void SDL_SetTextInputRect(const SDL_Rect *rect);
|rect||the SDL_Rect structure representing the rectangle to receive text (ignored if NULL)|
To start text input in a given location, this function is intended to be called before SDL_StartTextInput, although some platforms support moving the rectangle even while text input (and a composition) is active.
Note: If you want to use the system native IME window, try setting hint SDL_HINT_IME_SHOW_UI to 1, otherwise this function won't give you any feedback.
This function is available since SDL 2.0.0.