###### (This function is part of SDL_ttf, a separate library from SDL.)
# TTF_InsertTextString

Insert UTF-8 text into a text object.

## Header File

Defined in [<SDL3_ttf/SDL_ttf.h>](https://github.com/libsdl-org/SDL_ttf/blob/main/include/SDL3_ttf/SDL_ttf.h)

## Syntax

```c
bool TTF_InsertTextString(TTF_Text *text, int offset, const char *string, size_t length);
```

## Function Parameters

|                        |            |                                                                                                                                                                                                                    |
| ---------------------- | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| [TTF_Text](TTF_Text) * | **text**   | the [TTF_Text](TTF_Text) to modify.                                                                                                                                                                                |
| int                    | **offset** | the offset, in bytes, from the beginning of the string if >= 0, the offset from the end of the string if < 0. Note that this does not do UTF-8 validation, so you should only insert at UTF-8 sequence boundaries. |
| const char *           | **string** | the UTF-8 text to insert.                                                                                                                                                                                          |
| size_t                 | **length** | the length of the text, in bytes, or 0 for null terminated text.                                                                                                                                                   |

## Return Value

(bool) Returns true on success or false on failure; call SDL_GetError() for
more information.

## Remarks

This function may cause the internal text representation to be rebuilt.

## Thread Safety

This function should be called on the thread that created the text.

## Version

This function is available since SDL_ttf 3.0.0.

## See Also

- [TTF_AppendTextString](TTF_AppendTextString)
- [TTF_DeleteTextString](TTF_DeleteTextString)
- [TTF_SetTextString](TTF_SetTextString)

----
[CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategorySDLTTF](CategorySDLTTF)

