###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!) # SDL_SignalCondition Restart one of the threads that are waiting on the condition variable. ## Syntax ```c int SDL_SignalCondition(SDL_Condition *cond); ``` ## Function Parameters | | | | ------------ | -------------------------------- | | **cond** | the condition variable to signal | ## Return Value Returns 0 on success or a negative error code on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Version This function is available since SDL 3.0.0. ## Related Functions * [SDL_BroadcastCondition](SDL_BroadcastCondition) * [SDL_WaitCondition](SDL_WaitCondition) * [SDL_WaitConditionTimeout](SDL_WaitConditionTimeout) * [SDL_CreateCondition](SDL_CreateCondition) * [SDL_DestroyCondition](SDL_DestroyCondition) ---- [CategoryAPI](CategoryAPI)