The joyGetNumDevs function queries the joystick driver for the number of joysticks it supports.
The joyGetNumDevs function returns the number of joysticks supported by the current driver or zero if no driver is installed.
Use the joyGetPos function to determine whether a given joystick is physically attached to the system. If the specified joystick is not connected, joyGetPos returns a JOYERR_UNPLUGGED error value.
Winmm Class | Tao.Platform.Windows Namespace