NAME

       SDL_MUSTLOCK - Evaluates to true if the surface needs to be locked before access.

SYNOPSIS

       #include <SDL3/SDL_surface.h>

       #define SDL_MUSTLOCK(S) (((S)->flags & SDL_SURFACE_LOCK_NEEDED) == SDL_SURFACE_LOCK_NEEDED)

AVAILABILITY

       This macro is available since SDL 3.2.0.

Simple Directmedia Layer                           SDL 3.2.20                                    SDL_MUSTLOCK(3)