A few weeks ago Joel Spolsky blogged that he wanted a way to manage his company library.
One of the requirements was to be able to print out a label for his books. This struck a cord with me and I looked into the possibility of including this as part of BookSwap.ws.
Now I should add that I own a Dymo LabelWriter 320, its a great label printer, easy to use, versatile, the labels are great, clear text and they stick really well to the packages.
Heres what a 99012 address label with book data looks like:
I purchased the printer to print the address and stamp labels when I ship a book. Previously Id been using 14 labels/ A4 sheet on an inkjet printer, this was really rather painful and I wont tell you how many times I printed on a label that Id already used, put the sheet in upside down and even put the sheet in, switched the printer on and found another document in the queue printing onto my labels I did that a few times!.
I found only one commercial component package on Component Source that I thought would do the trick and I was all ready to write a .NET app to use that. However I realised that Dymo do add-ins for Word etc for the printer so I decided to search their website for a SDK.
The developers section wasnt to hard to find and the SDK was quickly downloaded.
Dymo provide a very wide range of examples and good documentation for the SDK, even samples for Internet Explorer and FireFox.
It turns out to be quite easy to use the COM objects supplied by the Dymo software to automate label creation, and with the addition of a bit of JavaScript this can be made to print out labels from a web page.
I had problems with FireFox as it wasnt happy creating the COM object due to security restrictions; I think I need to sign the JavaScript .js file. I will have to spend some more time investigating this.
So the result of all this is that earlier today (actually yesterday as its 2am now) I uploaded Item labeller for BookSwap.ws, CDSwap.ws and DVDSwap.ws. You can see how to use the Item Labeller in a posting on the community forum of BookSwap.ws.
The labeller allows fields from your book, CD or DVD entry to be printed out, you can define different label definitions and store these in your BookSwap.ws (CDSwap.ws and DVDSwap.ws) account.
I have to take my hat off to Dymo, I love the printer. The SDK and resources they provide for developers is great. Thank you Dymo! I will be buying another Dymo LabelWriter one day soon! (So I don't have to change labels and so I can test the Item Labeller better).
If you want to read the very lengthy thread of replies Joel got to his request it can be found here - some where about half way down is a post from me plugging BookSwap.ws 
BTW: Check out the Im Reading and My BookSwap.ws Wish List in the sidebar on the right here, these come from RSS feeds generated from my BookSwap.ws account more on that in a post soon.
Steve.