###### (This function is part of SDL_ttf, a separate library from SDL.) # TTF_SetFontDirection Set the direction to be used for text shaping by a font. ## Header File Defined in [](https://github.com/libsdl-org/SDL_ttf/blob/main/include/SDL3_ttf/SDL_ttf.h) ## Syntax ```c bool TTF_SetFontDirection(TTF_Font *font, TTF_Direction direction); ``` ## Function Parameters | | | | | ------------------------------ | ------------- | ----------------------------------- | | [TTF_Font](TTF_Font) * | **font** | the font to modify. | | [TTF_Direction](TTF_Direction) | **direction** | the new direction for text to flow. | ## Return Value (bool) Returns true on success or false on failure; call SDL_GetError() for more information. ## Remarks This function only supports left-to-right text shaping if SDL_ttf was not built with HarfBuzz support. This updates any [TTF_Text](TTF_Text) objects using this font. ## Thread Safety This function should be called on the thread that created the font. ## Version This function is available since SDL_ttf 3.0.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategorySDLTTF](CategorySDLTTF)