Anteckning
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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 code | Description |
|---|---|
|
The joystick driver is not present. |
|
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
| 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 |