Board index » cppbuilder » event sink for DIID_HTMLInputTextElementEvents2

2005-06-29 02:38:37 PM
cppbuilder80
Excuse me,
if I write event sink for DIID_HTMLInputTextElementEvents2¡A
what information can I get from
InvokeEvent(DISPID id, TVariant* params)?
I know there is a params argument, but it is TVariant,
how can I decode information from that argument if I catch
onclick event from the input element?
Furthermore, if the event was fired from javascript, is there any
chance to store an com object with the event and catch that object
in bcb?
thanks
 

"lendle" < XXXX@XXXXX.COM >wrote in message
HTMLInputTextElementEvents2 Dispinterface
msdn.microsoft.com/workshop/browser/mshtml/reference/events/htmlinputtextelementevents2/htmlinputtextelementevents2.asp
{
switch( id )
{
//...
case DISPID_HTMLELEMENTEVENTS2_ONCLICK:
{
TComInterface<IHTMLEventObj, &IID_IHTMLEventObj>EventIntf;
EventIntf = V_DISPATCH(¶ms[0]);
if( EventIntf )
// use EventIntf as needed...
break;
}
//...
}
return S_OK;
}
Do note that the onclick event has a VARIANT_BOOL return value to indicate
whether the event can bubble to other event handlers. However,
TEventDispatcher::InvokeEvent() does not expose any means of setting the
return value for events. So if you need to return a value from an event,
you cannot use TEventDispatcher for it. You will have to write your own
IDispatch implementation from scratch so that you can implement
IDispatch::Invoke() directly.
itself provides - the object that click() was called upon. You cannot
specify your own objects.
Gambit
 

"lendle" < XXXX@XXXXX.COM >wrote in message
the IDE itself. Please do not cross-post. It is against Borland's
newsgroup guidelines (info.borland.com/newsgroups). Only post to the
single most appropropriate group. Your question has already been addressed
in the "borland.public.cppbuilder.activex" newsgroup.
Gambit
 

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