###### (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_setenv_unsafe Set the value of a variable in the environment. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_stdinc.h) ## Syntax ```c int SDL_setenv_unsafe(const char *name, const char *value, int overwrite); ``` ## Function Parameters | | | | | ------------ | ------------- | ---------------------------------------------------------------------------------------------------------------- | | const char * | **name** | the name of the variable to set. | | const char * | **value** | the value of the variable to set. | | int | **overwrite** | 1 to overwrite the variable if it exists, 0 to return success without setting the variable if it already exists. | ## Return Value (int) Returns 0 on success, -1 on error. ## Thread Safety This function is not thread safe, consider using [SDL_SetEnvironmentVariable](SDL_SetEnvironmentVariable)() instead. ## Version This function is available since SDL 3.0.0. ## See Also - [SDL_SetEnvironmentVariable](SDL_SetEnvironmentVariable) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryStdinc](CategoryStdinc)