onbeforecopy Event

DHTML, HTML, & CSS

 
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onbeforecopy Event


Fires on the source object before the selection is copied to the system clipboard.

Syntax

Inline HTML <ELEMENT onbeforecopy = "handler" ... > All platforms
Event property object.onbeforecopy = handler JScript (compatible with ECMA 262 language specification) only
Named script <SCRIPT FOR = object EVENT = onbeforecopy> Internet Explorer only

Remarks

Bubbles Yes
CancelsYes
To invoke After selecting the text:
  • Right-click to display the shortcut menu and select Copy.
  • Or press CTRL+C.
Default action None.

The onbeforecopy event fires on the source element. Use the setData method to specify a data format for the selection.

Event Object Properties

Although event handlers in the DHTML Object Model do not receive parameters directly, the handler can query the event object for data.

Event Object Properties

altKeyRetrieves the current state of the ALT key.
cancelBubbleSets or retrieves whether the current event should bubble up the hierarchy of event handlers.
clientXRetrieves the x-coordinate of the mouse cursor relative to the client area of the window, excluding window decorations or scroll bars.
clientYRetrieves the y-coordinate of the mouse cursor relative to the client area of the window, excluding window decorations or scroll bars.
ctrlKeyRetrieves the state of the CTRL key.
dataTransferProvides access to predefined clipboard formats for use in drag-and-drop operations.
offsetXRetrieves the horizontal coordinate of the mouse's position relative to the object firing the event.
offsetYRetrieves the vertical coordinate of the mouse's position relative to the object firing the event.
returnValueSets or retrieves the return value from the event.
screenXRetrieves the horizontal position of the mouse, in pixels, relative to the user's screen.
screenYRetrieves the vertical position of the mouse, in pixels, relative to the user's screen.
shiftKeyRetrieves the state of the SHIFT key.
srcElementRetrieves the object that fired the event.
typeRetrieves the event name from the event object.
xRetrieves the x-coordinate of the mouse cursor relative to the parent element.
yRetrieves the y-coordinate of the mouse cursor relative to the parent element.

Example

This example uses the onbeforecopy event to customize copy behavior.

Sample Code

<HEAD>
<SCRIPT>
var sNewValue = "copy event fired";
var bFired = false;
var sSave = "";

function Source_Beforecopy() 
{
  sSave = oSource.innerText;
  bFired = true;
  event.returnValue = false;
}

function Source_Copy() 
{
  window.clipboardData.setData("Text", sNewValue);
}

function Target_BeforePaste() 
{
  event.returnValue = false;
}

function Target_Paste() 
{
  event.returnValue = false;
  oTarget.value = window.clipboardData.getData("Text");
}

</SCRIPT>
</HEAD>
<BODY>
<SPAN ID=oSource onbeforecopy="Source_Beforecopy()"
       oncopy="Source_Copy()">copy this text</SPAN>
<INPUT ID=oTarget onbeforepaste="Target_BeforePaste()"
       onpaste="Target_Paste()">
</BODY>

This feature requires Internet Explorer 5 or later. Click the icon below to install the latest version. Then reload this page to view the sample.
Microsoft Internet Explorer

Applies To

[ Object Name ]
PlatformVersion
Win16:
Win32:
Mac:
Unix:
WinCE:
Version data is listed when the mouse hovers over a link, or the link has focus.
A, ADDRESS, AREA, B, BDO, BIG, BLOCKQUOTE, CAPTION, CENTER, CITE, CODE, custom, DD, DFN, DIR, DIV, DL, DT, EM, FIELDSET, FORM, Hn, I, IMG, LABEL, LEGEND, LI, LISTING, MENU, NOBR, OL, P, PLAINTEXT, PRE, S, SAMP, SMALL, SPAN, STRIKE, STRONG, SUB, SUP, TD, TEXTAREA, TH, TR, TT, U, UL

See Also

dhtml data transfer overviewInternet Link, onbeforecut, onbeforepaste, oncopy, oncut, onpaste, setData


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