Provided by: allegro5-doc_5.2.9.1+dfsg-1.1build4_all bug

NAME

       al_install_haptic - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              bool al_install_haptic(void)

DESCRIPTION

       Installs  the  haptic  (force  feedback)  device  subsystem.   This must be called before using any other
       haptic-related functions.  Returns true if the haptics subsystem could be initialized correctly, false in
       case of error.

       For  portability  you  should  first  open  a display before calling al_install_haptic(3alleg5).  On some
       platforms, such as DirectInput under Windows, al_install_haptic(3alleg5) will only work if at  least  one
       active  display  is  available.   This  display must stay available until al_uninstall_haptic(3alleg5) is
       called.

       If  you  need  to  close  and  reopen  your  active  display  for   example,   then   you   should   call
       al_uninstall_haptic(3alleg5)  before closing the display, and al_install_haptic(3alleg5) after opening it
       again.

SINCE

       5.1.8

              [Unstable API]: Perhaps could be simplified due to limited support for all  the  exposed  features
              across all of the platforms.  Awaiting feedback from users.