MouseEvent ctrlKey property

DOM-händelser MouseEvent

Definition and usage

The ctrlKey property returns a boolean value indicating whether the "CTRL" key was pressed when the mouse event was triggered.

Note:This property is read-only.

Example

Determine if the "CTRL" key was pressed when clicking the mouse button:

if (event.ctrlKey) {
  alert("The CTRL key was pressed!");
}
  alert("The CTRL key was NOT pressed!");
}

Try it yourself

Syntax

event.ctrlKey

Technical details

Return value:

A boolean value indicating whether the "CTRL" key was pressed when the mouse event occurred.

Possible values:

  • true - CTRL key pressed
  • false - No CTRL key pressed
DOM version: DOM Level 2 Events

Webbläsartillgänglighet

Egenskaper Chrome IE Firefox Safari Opera
ctrlKey Stöd Stöd Stöd Stöd Stöd

Relaterade sidor

HTML DOM Referenshandbok:MouseEvent altKey-attribut

HTML DOM Referenshandbok:MouseEvent metaKey-attribut

HTML DOM Referenshandbok:MouseEvent shiftKey-attribut

DOM-händelser MouseEvent