DOKK / manpages / debian 13 / libsdl3-ttf-doc / TTF_FontIsFixedWidth.3.en
TTF_FontIsFixedWidth(3) SDL_ttf3 FUNCTIONS TTF_FontIsFixedWidth(3)

TTF_FontIsFixedWidth - Query whether a font is fixed-width.

Defined in SDL3_ttf/SDL_ttf.h

#include "SDL3_ttf/SDL_ttf.h"
bool TTF_FontIsFixedWidth(const TTF_Font *font);

A "fixed-width" font means all glyphs are the same width across; a lowercase 'i' will be the same size across as a capital 'W', for example. This is common for terminals and text editors, and other apps that treat text as a grid. Most other things (WYSIWYG word processors, web pages, etc) are more likely to not be fixed-width in most cases.

the font to query.

Returns true if the font is fixed-width, false otherwise.

It is safe to call this function from any thread.

This function is available since SDL_ttf 3.0.0.

SDL_ttf 3.2.2 SDL_ttf