DispatchEventAsync Method

In This Topic

Description

Dispatches an Event asynchronously at the specified EventTarget, invoking the affected EventListeners in the appropriate order.

Syntax

Visual Basic
Public Sub DispatchEventAsync( _ ByVal TargetSelector As String, _ ByVal EventName As String, _ ByVal Bubbles As Boolean, _ ByVal Cancelable As Boolean, _ ByVal Composed As Boolean, _ ByVal Detail As Variant _ )

Visual Basic

Public Sub DispatchEventAsync( _
   ByVal TargetSelector As String, _
   ByVal EventName As String, _
   ByVal Bubbles As Boolean, _
   ByVal Cancelable As Boolean, _
   ByVal Composed As Boolean, _
   ByVal Detail As Variant _
)

Parameters

TargetSelector

CSS3 Selector of the Event Target HTML5 Element.

If you are unfamiliar with CSS3 Selectors have a look in Finding the correct CSS3 Selector article.

EventName

The name of the Event.

Bubbles

Set True for Event Bubbling.

Cancelable

Set True if Event can be cancelled.

Composed

Set True if Event is Composed.

Detail

Event Data passed as OLE/COM Variant which is converted to V8 JavaScript Value.

Remarks

WebKitX DispatchEventAsync() method allows you to fire DOM events directly into HTML5 and handle those events by JavaScript event handlers. You can pass the target selector that will receive the event, the event name, event initialization parameters (bubbling, cancelable, composed) and an OLE/COM Variant that will be converted into a V8 JavaScript object and added in the details field of the Event object. Event execution is asynchronous in terms of IPC tunneling and immutable in terms of DOM.

Dispatch Event Circuit

Example

Example (Visual Basic)

Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
    On Error Resume Next
    If UnloadMode = 0 Then
        Cancel = 1
        frm_Designer.Editor.DispatchEventAsync "#x-w2ui-designer-action-stop", "click", False, False, False, ""
    End If
End Sub