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Summary

A Boolean value indicating whether the control (Control) key is enabled when the touch event is created. If this key is enabled, the attribute's value is true. Otherwise, it is false.

This property is Read only .

Syntax

var ctrlEnabled = touchEvent.ctrlKey;

Return value

ctrlEnabled
true if the control key is enabled for this event; and false if the control is not enabled.

Example

The TouchEvent.altKey example includes an example of this property's usage.

Specifications

Specification Status Comment
Touch Events – Level 2 Editor's Draft Non-stable version.
Touch Events Recommendation Initial definition.

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 22.0 (Yes) 18.0 (18.0)[1]
52.0 (52.0)[2]
No support No support No support
Feature Android Android Webview Chrome for Android Edge Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) (Yes) 6.0 (6.0) (Yes) 11 (Yes) (Yes)

[1] Touch events were implemented in Gecko 18.0, but removed again in 24.0 (Firefox 24.0 / Thunderbird 24.0 / SeaMonkey 2.21) on the desktop version of Firefox due to web compatibility issues (bug 888304).

[2] As of Gecko 52.0, touch events support has been fixed and reenabled in Windows desktop platforms.

Document Tags and Contributors

 Contributors to this page: erikadoyle, chrisdavidmills, rolfedh, AFBarstow
 Last updated by: erikadoyle,