[Lazarus] New version of WebDesign available

[Michael Van Canneyt]

On Wed, 17 Mar 2010, Michael Schnell wrote:

> On 03/17/2010 02:34 PM, Joost van der Sluis wrote:
>> No, it implements a fastCGI application. You can not use it for what you
>> want. Otoh, what you want is not necessary to build a persistent
>> web-application. That can be done much easier. (As is done in the
>> fastCgi application)
>>
> I see. What I intend to do can be extended be a persistent
> web-application, So there is an example of a persistent web-application
> that can't be done with fastCGI :).
>
> OTOH, I feel that any persistent web-application can be done with a
> NoGUIApplication infrastructure, the advantage for those that _can_ be
> done as fastCGI applications is that with same, the normal
> "Delphi"-paradigm of event-driven main-thread programming can be used,
> making it a lot easier to use for experienced Delphi programmers without
> much CGI background.

There is no reason why fcl-web cannot be used for this; it is totally
event driven. The only "event" currently defined is the request from
the client.

>
>> Well, the fcl-web applications do not support timers, TCP/IP, serial
>> interfases and postmessage functionality.
>>
>> So you cannot use it for anything you want, would be my guess.
>>
> That is what I supposed :( .
>
>> You can use the same mechanism as is used by the TWebApplication,
>> though. Build your own TApplication descendent, which does all this. But
>> I thought that was precisely what you are working on?
>>
> That is what I already have :).
>
> But (see my earlier mails) I feel it would be more appropriate to do a
> new Widget Type than a new Application Type.

This I really don't understand, and never have since you started
the discussion.

There are no widgets in your application. It's a server application
that sits in the background. So why create a new widget type ?

There is, if I understand you correct, an event loop.

All fine, but an event loop can be programmed in various ways, 
without the HUGE overhead of the LCL widgetset.

Michael.