getModifierState method

Queries the state of the specified modifier key.

Document Object Model (DOM) Level 3 Events Specification, Section 5.2.6

Syntax

object.getModifierState(keyArg, state)

Parameters

keyArg [in]

Type: String

Alt: The left or right Alt key.
AltGraph: The Ctrl and Alt keys.
CapsLock: The Caps Lock toggle.
Control: The left or right Ctrl key.
Meta: The Meta/Control key.
NumLock: The Num Lock toggle.
Scroll: The Scroll Lock toggle.
Shift: The left or right Shift key.
Win: The left or right Windows logo key.

state [out, retval]

Type: Boolean

true if the modifier key is active; otherwise, false.

Return value

Type: Boolean

true if the modifier key is active; otherwise, false.

Standards information

Document Object Model (DOM) Level 3 Events Specification, Section 5.2.6

Remarks

Some keyboard configurations contain a left and right modifier key. To determine whether the left or right key is pressed, use the location property.