joyGetNumDevs function (joystickapi.h)

The joyGetNumDevs function queries the joystick driver for the number of joysticks it supports.

Syntax

UINT joyGetNumDevs();

Return value

The joyGetNumDevs function returns the number of joysticks supported by the current driver or zero if no driver is installed.

Remarks

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.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	joystickapi.h (include Windows.h)
Library	Winmm.lib
DLL	Winmm.dll

See also

Joysticks

Multimedia Joystick Functions