onbeforepaste event

Fires on the target object before the selection is pasted from the system clipboard to the document.

Syntax

HTML Attribute	<element onbeforepaste = "handler(event)">
Event Property	object.onbeforepaste = handler;
attachEvent Method	object.attachEvent("onbeforepaste", handler)
addEventListener Method	object.addEventListener("beforepaste", handler, useCapture)

There are no standards that apply here.

Creating custom code for pasting requires several steps:

Set event.returnValue=false in the HTMLFormElementEvents::onbeforepaste event to enable the Paste shortcut menu item.
Cancel the default behavior of the client by including event.returnValue=false in the HTMLFormElementEvents::onpaste event handler. This guideline applies only to objects, such as the text box, that have a defined default behavior.
Specify a data format in which to paste the selection through the IHTMLDataTransfer::getData method of the clipboardData object.
Invoke the IHTMLDataTransfer::getData method in the HTMLFormElementEvents::onpaste event to execute custom code for pasting.

None.

To invoke this event, do one of the following:

The pEvtObj parameter is required for the following interfaces: