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joyGetNumDevs function (joystickapi.h)

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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