sdlGetNumTouchFingers function
Get the number of active fingers for a given touch device.
\param touchID the ID of a touch device \returns the number of active fingers for a given touch device on success or 0 on failure; call SDL_GetError() for more information.
\since This function is available since SDL 2.0.0.
\sa SDL_GetTouchFinger
extern DECLSPEC int SDLCALL SDL_GetNumTouchFingers(SDL_TouchID touchID)
Implementation
int sdlGetNumTouchFingers(int touchId) {
final sdlGetNumTouchFingersLookupFunction = libSdl2.lookupFunction<
Int32 Function(Int64 touchId),
int Function(int touchId)>('SDL_GetNumTouchFingers');
return sdlGetNumTouchFingersLookupFunction(touchId);
}