Function sdl2_sys::SDL_GameControllerAddMapping

pub unsafe extern "C" fn SDL_GameControllerAddMapping(
    mappingString: *const c_char,
) -> c_int

Add support for controllers that SDL is unaware of or to cause an existing controller to have a different binding.

The mapping string has the format “GUID,name,mapping”, where GUID is the string value from SDL_JoystickGetGUIDString(), name is the human readable string for the device and mappings are controller mappings to joystick ones. Under Windows there is a reserved GUID of “xinput” that covers all XInput devices. The mapping format for joystick is: {| |bX |a joystick button, index X |- |hX.Y |hat X with value Y |- |aX |axis X of the joystick |} Buttons can be used as a controller axes and vice versa.

This string shows an example of a valid mapping for a controller:

"341a3608000000000000504944564944,Afterglow PS3 Controller,a:b1,b:b2,y:b3,x:b0,start:b9,guide:b12,back:b8,dpup:h0.1,dpleft:h0.8,dpdown:h0.4,dpright:h0.2,leftshoulder:b4,rightshoulder:b5,leftstick:b10,rightstick:b11,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:b6,righttrigger:b7"

\param mappingString the mapping string \returns 1 if a new mapping is added, 0 if an existing mapping is updated, -1 on error; call SDL_GetError() for more information.

\since This function is available since SDL 2.0.0.

\sa SDL_GameControllerMapping \sa SDL_GameControllerMappingForGUID