buttons property

Indicates which pointer device buttons are being pressed, expressed as a bitmask.

Syntax

Property values

Type: Number

0

No buttons are pressed

1

• Left mouse button press, or
• Touch contact (PointerEvent only), or
• Pen contact (PointerEvent only)

2

• Right mouse button press, or
• Pen contact with barrel button pressed, or(PointerEvent only)

4

Middle mouse button press

8

X1 (back) mouse button press (PointerEvent only)

16

X2 (forward) mouse button press (PointerEvent only)

32

Pen contact with eraser button pressed (PointerEvent only)

Standards information

• Document Object Model (DOM) Level 3 Events Specification, Section 5.2.3
• Page Visibility

See also

DragEvent

MouseEvent

MouseWheelEvent

WheelEvent

button