Sets or gets which data transfer operations are allowed for the object on the source element.
HRESULT value = object.put_effectAllowed( v);HRESULT value = object.get_effectAllowed(* p);
Selection is copied.
Selection is linked to the drop target by the data transfer operation.
Selection is moved to the target location when dropped.
Selection is copied or linked, depending on the target default.
Selection is copied or moved, depending on the target default.
Selection is linked or moved, depending on the target default.
All drop effects are supported.
Dropping is disabled and the no-drop cursor is displayed.
Default. No value has been set through the IHTMLDataTransfer::effectAllowed property. In this case, the default effect still works, although it cannot be queried through this property.
This property can be used to override the default behavior in other applications. For example, the script can set the IHTMLDataTransfer::effectAllowed property to copy for a text field and override the Microsoft Word default of move. In the application, copy is the default IHTMLDataTransfer::effectAllowed behavior; however, anchors are set to link by default, and text fields are set to move by default.
By setting IHTMLDataTransfer::effectAllowed to none, dropping is disabled but the no-drop cursor is still displayed. To avoid displaying the no-drop cursor, cancel the IHTMLEventObj::returnValue of the HTMLFrameSiteEvents::ondragstart window.
- About DHTML Data Transfer