(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_MUSTLOCK

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

Header File

Defined in SDL_surface.h, but apps should use #include <SDL3/SDL.h>

Syntax

#define SDL_MUSTLOCK(S) (((S)->flags & SDL_RLEACCEL) != 0)

Version

This macro is available since SDL 3.0.0.

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CategoryAPI, CategoryAPIMacro, CategorySurface

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