Joystick messages notify your application that a joystick has changed position or that one of its buttons has changed states. Messages beginning with MM_JOY1 are sent to the function if your application requests input from the joystick using the identifier JOYSTICKID1, and MM_JOY2 messages are sent if your application requests input from the joystick using the identifier JOYSTICKID2.
The messages in the following table identify the status of the joystick buttons:
| Message | Description |
|---|---|
| MM_JOY1BUTTONDOWN | A button on joystick JOYSTICKID1 has been pressed. |
| MM_JOY1BUTTONUP | A button on joystick JOYSTICKID1 has been released. |
| MM_JOY1MOVE | Joystick JOYSTICKID1 changed position in the x- or y-direction. |
| MM_JOY1ZMOVE | Joystick JOYSTICKID1 changed position in the z-direction. |
| MM_JOY2BUTTONDOWN | A button on joystick JOYSTICKID2 has been pressed. |
| MM_JOY2BUTTONUP | A button on joystick JOYSTICKID2 has been released. |
| MM_JOY2MOVE | Joystick JOYSTICKID2 changed position in the x- or y-direction |
| MM_JOY2ZMOVE | Joystick JOYSTICKID2 changed position in the z-direction. |
All messages report nonexistent buttons as released.