(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_hid_init

Initialize the HIDAPI library.

Header File

Syntax

int SDL_hid_init(void);

Return Value

(int) Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

Remarks

This function initializes the HIDAPI library. Calling it is not strictly necessary, as it will be called automatically by SDL_hid_enumerate() and any of the SDL_hid_open_*() functions if it is needed. This function should be called at the beginning of execution however, if there is a chance of HIDAPI handles being opened by different threads simultaneously.

Each call to this function should have a matching call to SDL_hid_exit()

Version

This function is available since SDL 3.1.3.