On 03/15/2010 04:24 PM, waldo kitty wrote: > i'm very intrigued by your proposal and work on this... i'm very > interested in it for a idea i've had for a long time but had no real > pointer to how to accomplish it... Same here. I have been discussing this issue in the fpc-develop mailing list already years ago. In fact I feel that support for an OS-independent event queue is better done in the RTL than in the LCL, but as traditionally - since Delphi - the event queue is done in the same units as the GUI basics, this would needs basic changes as well on the FPC as on the Lazarus site. Something I'm not able to initialize and manage. So I changed to this mailing list to discuss the issue.
I always did know how this could be done technically and in fact I do have a working version. But right now I am trying to create a decently integrated Lazarus package for the function. > especially when it comes to this persistent interface with a web > server... Here NoGUIApplication is only a basic tool to create a "persistent" CGI application. The communication with the web server (via a byte stream - pipe or TCP/IP) is defined by the Apache people. AFAIK, most major web servers support this, as well, but many "small" web servers don't. On top of the AJAX/Comet specification define the way the web client polls for updates of the web page the user watches. This is done by the CHI hanging the HTTP request until an update is necessary or a HTTP timeout is due. On the client site this usually is done by a standard Java script package. (See the topic "New version of WebDesign available" in this mailing list). > why limit your NoGUIApplication, by name or otherwise, to linux only? > what would it have to do differently on other OS'?? On a Windows box a GUI API is available, anyway, so you can use a standard application do do a persistent CGI or any other daemon / service alike GUI-less programs just by ignoring the GUI. So a dedicated NoGUIApplication is not necessary. Of course it can quite easily be done if the Linux version is in place. I learned that there are reasons to keep the pure "nogui" name in place, even though I think "dummy" would be more appropriate, as it only provides hooks for the compiler, but no function. Can you suggest a different name ? -Michael -- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
