Provided by: libsdl3-ttf-doc_3.2.0+ds-1_all 

NAME
TTF_InsertTextString - Insert UTF-8 text into a text object.
HEADER FILE
Defined in SDL3_ttf/SDL_ttf.h
SYNOPSIS
#include "SDL3_ttf/SDL_ttf.h" bool TTF_InsertTextString(TTF_Text *text, int offset, const char *string, size_t length);
DESCRIPTION
This function may cause the internal text representation to be rebuilt.
FUNCTION PARAMETERS
text the TTF_Text to modify. 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. string the UTF-8 text to insert. length the length of the text, in bytes, or 0 for null terminated text.
RETURN VALUE
Returns true on success or false on failure; call SDL_GetError() for more information.
THREAD SAFETY
This function should be called on the thread that created the text.
AVAILABILITY
This function is available since SDL_ttf 3.0.0.
SEE ALSO
•(3), TTF_AppendTextString(3), •(3), TTF_DeleteTextString(3), •(3), TTF_SetTextString(3) SDL_ttf SDL_ttf 3.2.0 TTF_InsertTextString(3)