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

NAME
TTF_GetPreviousTextSubString - Get the previous substring in a text object
HEADER FILE
Defined in SDL3_ttf/SDL_ttf.h
SYNOPSIS
#include "SDL3_ttf/SDL_ttf.h" bool TTF_GetPreviousTextSubString(TTF_Text *text, const TTF_SubString *substring, TTF_SubString *previous);
DESCRIPTION
If called at the start of the text, this will return a zero length substring with the TTF_SUBSTRING_TEXT_START flag set.
FUNCTION PARAMETERS
text the TTF_Text to query. substring the TTF_SubString to query.
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. SDL_ttf SDL_ttf 3.2.0 TTF_GetPreviousTextSubString(3)