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MM_JOY1BUTTONDOWN

The MM_JOY1BUTTONDOWN message notifies the window that has captured joystick JOYSTICKID1 that a button has been pressed.

MM_JOY1BUTTONDOWN

fwButtons = wParam;

xPos = LOWORD(lParam);

yPos = HIWORD(lParam);

Parameters

fwButtons

Identifies the button that has changed state and the buttons that are pressed. It can be one of the following:

JOY_BUTTON1CHG
First joystick button has changed state.
JOY_BUTTON2CHG
Second joystick button has changed state.
JOY_BUTTON3CHG
Third joystick button has changed state.
JOY_BUTTON4CHG
Fourth joystick button has changed state.

and one or more of the following:

JOY_BUTTON1
First joystick button is pressed.
JOY_BUTTON2
Second joystick button is pressed.
JOY_BUTTON3
Third joystick button is pressed.
JOY_BUTTON4
Fourth joystick button is pressed.

xPos

The x-coordinate of the joystick relative to the upper left corner of the client area.

yPos

The y-coordinate of the joystick relative to the upper left corner of the client area.

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