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

NAME
TTF_GetGlyphMetrics - Query the metrics (dimensions) of a font's glyph for a UNICODE codepoint.
HEADER FILE
Defined in SDL3_ttf/SDL_ttf.h
SYNOPSIS
#include "SDL3_ttf/SDL_ttf.h" bool TTF_GetGlyphMetrics(TTF_Font *font, Uint32 ch, int *minx, int *maxx, int *miny, int *maxy, int *advance);
DESCRIPTION
To understand what these metrics mean, here is a useful link: https://freetype.sourceforge.net/freetype2/docs/tutorial/step2.html
FUNCTION PARAMETERS
font the font to query. ch the codepoint to check. minx a pointer filled in with the minimum x coordinate of the glyph from the left edge of its bounding box. This value may be negative. maxx a pointer filled in with the maximum x coordinate of the glyph from the left edge of its bounding box. miny a pointer filled in with the minimum y coordinate of the glyph from the bottom edge of its bounding box. This value may be negative. maxy a pointer filled in with the maximum y coordinate of the glyph from the bottom edge of its bounding box. advance a pointer filled in with the distance to the next glyph from the left edge of this glyph's bounding box.
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 font.
AVAILABILITY
This function is available since SDL_ttf 3.0.0. SDL_ttf SDL_ttf 3.2.0 TTF_GetGlyphMetrics(3)