DOKK / manpages / debian 13 / libsdl3-doc / SDL_RenderDebugTextFormat.3.en
SDL_RenderDebugTextFormat(3) SDL3 FUNCTIONS SDL_RenderDebugTextFormat(3)

SDL_RenderDebugTextFormat - Draw debug text to an SDL_Renderer .

Defined in SDL3/SDL_render.h

#include "SDL3/SDL.h"
bool SDL_RenderDebugTextFormat(SDL_Renderer *renderer, float x, float y, const char *fmt, ...);

This function will render a printf()-style format string to a renderer. Note that this is a convinence function for debugging, with severe limitations, and is not intended to be used for production apps and games.

For the full list of limitations and other useful information, see

SDL_RenderDebugText .

the renderer which should draw the text.
the x coordinate where the top-left corner of the text will draw.
the y coordinate where the top-left corner of the text will draw.
the format string to draw.
...
additional parameters matching % tokens in the fmt string, if any.

Returns true on success or false on failure; call

SDL_GetError () for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.

(3), SDL_RenderDebugText(3), (3), SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE(3)

SDL 3.2.10 Simple Directmedia Layer