dale lane

I mentioned yesterday that I never got round to writing the bit of code for my location service client which would look for known wi-fi access points.

To recap, the idea is that my phone should be able to look for the access points within range, comparing the SSIDs against a list of known locations. If a match is found, it looks up the name and GPS coordinates of the location from the known store, and uses an HTTP request to send the update to the server.

It was really easy – the interesting bit of the code looks like this…

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I mentioned ages ago about a little extension I wrote for my phone that lets me dump the contents of an email that I receive into any other bit of Pocket Outlook – turning an email about an event into a Calendar item, or an email asking me to do something into a Task item – with a single click.

I recently noticed a problem with it, and finally got around to looking into it tonight. The problem was that sometimes the body of the email wouldn’t make it to the new Calendar or Task item. Everything else, like the subject and the sender’s name would be fine, but the body of the new item would be blank.

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I’ve mentioned several times before how easy Visual Studio makes it to knock up mobile applications. This is one of my favourite aspects of Windows Mobile. Why put up with an interface that doesn’t work for you? If you’ve got a spare hour, make a customized interface that gets your phone to work in way that suits you better. You can create a new interface (a ‘form’) without knowing any code – just drag-and-drop to put buttons, pictures and text where you want them. Then fill in the empty methods to get the buttons to do stuff – most of the core applications expose an API that let you drive them from your own forms.

In this post, I’ll go through an example – what I didn’t like about the WM interface, why it didn’t work well for me, and how I hacked together a new interface this evening.

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This is apparently an old tip, but was new to me so thought it was worth posting:

…you can make phone calls or send SMS messaages to yourself in the [Windows Mobile SDK] emulator. The phone number for the emulator is “+14250010001”. This is really handy for testing SMS interception or how your apps responds to an incoming phone call, etc. Just send an SMS to +14250010001…

…It’s also a great way to freak your buddy out who’s working on the emulator and doesn’t know about this feature.

Write a little app that will place a call to the emulator with a time delay before it places the call, deploy it when he’s not looking and start it. Wait your prescribed timeout and watch as he tentatively answers the call from his emulator 🙂

Cool! 🙂

I came across a multi-line string while doing an inspection on a colleagues C code. I’ve never seen this sort of thing before, and didn’t know it was possible.

Something like this:

    char* welcomeMessage = "Hello "
                           "Dale. "
                           "How are you?";

    printf("%s", welcomeMessage);

will happily print out “Hello Dale. How are you?”.

It seems that you can define a string literal in C across multiple lines, without any need for a concatenation character (like ‘+’ in Java and C#).

I like that, even though I’ve been writing C for years now, I still occasionally come across little bits and pieces in the language that are new to me. And doing code inspections and reviews of other people’s code are a good way to share this sort of stuff and learn from each other.