(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)

SDL_MUSTLOCK

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

Header File

Defined in SDL_surface.h

Syntax

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

CategoryAPI, CategoryAPIMacro, CategorySurface