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joyGetThreshold function

The joyGetThreshold function queries a joystick for its current movement threshold.

Syntax


MMRESULT joyGetThreshold(
   UINT   uJoyID,
   LPUINT puThreshold
);

Parameters

uJoyID

Identifier of the joystick. Valid values for uJoyID range from zero (JOYSTICKID1) to 15.

puThreshold

Pointer to a variable that contains the movement threshold value.

Return value

Returns JOYERR_NOERROR if successful or one of the following error values.

Return codeDescription
MMSYSERR_NODRIVER

The joystick driver is not present.

MMSYSERR_INVALPARAM

An invalid parameter was passed.

 

Remarks

The movement threshold is the distance the joystick must be moved before a joystick position-change message (MM_JOY1MOVE, MM_JOY1ZMOVE, MM_JOY2MOVE, or MM_JOY2ZMOVE) is sent to a window that has captured the device. The threshold is initially zero.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Mmsystem.h (include Windows.h)

Library

Winmm.lib

DLL

Winmm.dll

See also

Joysticks
Multimedia Joystick Functions

 

 

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