neo77
asked on
How to fire events from HTML into Application
I have an application with CHtmlView , i want to be able to fire events into the mainapp , like clicking on a button on hyperlink calls a function within my App, just like what we have in Search window on Windows 2000.
I have looked into IHTMLDocument interface but the documentation was confusing for me , any suggestions or samples ???
I can only offer 75 points now cause that is all i have...
I have looked into IHTMLDocument interface but the documentation was confusing for me , any suggestions or samples ???
I can only offer 75 points now cause that is all i have...
Hi NEO77,
Its a bit tricky but this is how its done.
in your html file add a javascript function like this
<SCRIPT LANGUAGE=javascript>
<!--
function button1_onclick() {
location.href="#MyMessage"
}
</SCRIPT>
Basically, what this does is send a message to the browser to go to the internal file bookmark MyMessage.
As there is no MyMessage this message is passed on to the CHTMLView
in your CHTMLView implementation, implement the function:
CHTMLView::OnBeforeNavigat
The lpszURL contains the messages sent from the html file through the browser object so handle it like so
if (NULL != strstr(lpszURL, "MyMessage"))
{
// put your handling in here
}
Best of luck,
Robert
Its a bit tricky but this is how its done.
in your html file add a javascript function like this
<SCRIPT LANGUAGE=javascript>
<!--
function button1_onclick() {
location.href="#MyMessage"
}
</SCRIPT>
Basically, what this does is send a message to the browser to go to the internal file bookmark MyMessage.
As there is no MyMessage this message is passed on to the CHTMLView
in your CHTMLView implementation, implement the function:
CHTMLView::OnBeforeNavigat
The lpszURL contains the messages sent from the html file through the browser object so handle it like so
if (NULL != strstr(lpszURL, "MyMessage"))
{
// put your handling in here
}
Best of luck,
Robert
ASKER
Sure does serve the purpose i'll give you the points if nothing else shows up , i am waiting if someone could give final remarks about if its possible through IHTMLDocument or not ... sorry but i have to keep the discussion open for now
Add an handler for OnBeforeNavigate2, check the URL parameter, set pbCancel to true, and run "your own" action
(it's likely that you need to decouple this operation, i.e. not call a NavigateTo or something from inside the OnBeforeNavigate handler, but post a message to yourself, and do the action in the message handler)
Helped?
Peter
(it's likely that you need to decouple this operation, i.e. not call a NavigateTo or something from inside the OnBeforeNavigate handler, but post a message to yourself, and do the action in the message handler)
Helped?
Peter
ASKER
is it possible to expose methods from the application to the page , i.e. i be able to call a method that is in the application from javascript code in page ?
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>> is it possible to expose methods from the application to the page
yes, there's a DRILLER example in MSDN that show how to
(basically, you can set an external dispatch interface - from ATL it's CAxWindow::SetExternalDisp
yes, there's a DRILLER example in MSDN that show how to
(basically, you can set an external dispatch interface - from ATL it's CAxWindow::SetExternalDisp
ASKER