TC Lispers April Presentations online April 29th, 2010
Patrick Stein

The Twin Cities Lisp Users Group meeting for April was last Monday. The main topic was Web Frameworks, but there were also two shorter talks.

Weblocks Presentation

Patrick Stein gave this presentation at the TC Lispers meeting in April 2010.

Weblocks on Vimeo.

Allegro Serve and Web Actions Presentation

Robert Goldman gave this presentation at the TC Lispers meeting in April 2010.

Apology: Unfortunately, ScreenFlow bombed out on me when I went to stop recording. It subsequently saw that it had a partial project there but was unable to recover it. As such, there is no video available for this presentation. Feh. — Patrick

Hunchentoot Presentation

Paul Krueger gave this presentation at the TC Lispers meeting in April 2010.

Hunchentoot on Vimeo.

Cocoa Lisp Controller Presentation

Paul Krueger gave this presentation at the TC Lispers meeting in April 2010.

Cocoa Lisp Controller on Vimeo.

CL-Growl Presentation

Patrick Stein gave this presentation at the TC Lispers meeting in April 2010.

CL-Growl on Vimeo.

CL-Growl patched for CCL April 29th, 2010
Patrick Stein

Alexandre Paes submitted a patch for my CL-Growl library so it now works with CCL (aka. Clozure, formerly OpenMCL), too.

Here is the source tarball: cl-growl_1.1.2010.04.29.tar.gz and the corresponding GPG signature: cl-growl_1.1.2010.04.29.tar.gz.asc. For other ways to access this code, see the CL-Growl page.

Thank you, Alex!

Weblocks Slides April 26th, 2010
Patrick Stein

At the TC Lispers meeting tonight, I will be giving a little presentation about weblocks. Here are slides for that presentation.

ps. if you’re in range, come to the meeting… Common Roots Cafe in Minneapolis.

CL-Growl Slides April 23rd, 2010
Patrick Stein

On Monday, I am giving a lightning talk at the TC Lispers meeting about my Common Lisp Growl client library.

Here are the slides with presenter notes and the accompanying sample code.

CL-Growl client library released April 12th, 2010
Patrick Stein

Growl is a notification system for Mac OS X. You run a Growl server on your machine. Then, applications can send notifications that will be displayed on your desktop. Growl supports a thin network protocol called Growl Talk that programs can use to send notifications to the Growl server (and hence, to your desktop).

Growl is incredibly useful for any program that operates asynchronously with the user. If you want to be notified when some portion of your job completes or when there is a critical error in your web application, Growl is a great tool to have at your disposal.

I wrote an implementation for Common Lisp of the client protocol. Here is a simple example of how you might use it:

(let ((growl:*growl-default-app* "My Lisp Application")
      (growl:*growl-default-host* "localhost")
      (growl:*growl-default-password* "my-growl-password"))
  (growl:register :enabled (list "Warn" "Error")
                  :disabled (list "Info"))
  (growl:notify "Program starting up..."
                :notification "Info")
  (unless (connect-to-database ...)
    (growl:notify "Cannot connect to database!"
                  :title "Critical Error!"
                  :notification "Error"
                  :sticky t
                  :priority 2)))

For more complete usage information and to learn how to obtain the library, see the CL-Growl web page.

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