Anteckning
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The joyGetPos function queries a joystick for its position and button status.
Syntax
MMRESULT joyGetPos(
UINT uJoyID,
LPJOYINFO pji
);
Parameters
uJoyID
Identifier of the joystick to be queried. Valid values for uJoyID range from zero (JOYSTICKID1) to 15.
pji
Pointer to a JOYINFO structure that contains the position and button status of the joystick.
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. |
|
The specified joystick is not connected to the system. |
Remarks
For devices that have four to six axes of movement, a point-of-view control, or more than four buttons, use the joyGetPosEx function.
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 |