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
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