I am hoping for your immediate reply because time for us is crucial. If you have any recommendations for us, please…please include it in your reply. T.T

I consider to use it as an accelertion integrator (e.g. show the motion path of the phone). Applications would be:
- “navigation” without gps (tunnel etc.).
- distance measurement e.g. measure a room. startintegration at point-A, stop integration at point-B ==> calculate distance

I think I will just give up any hope for WM. This is just fooling people with g-sensor installed on their phones and not providing any applications, while iphone nicely works with g-sensor and have a LOT of applications.

My question:
How to make (choice in a list or other) so that all the applications of HTC HD2 can pass from the portrait mode to the landscape mode by simple rotation of phone (for example: particularly important function for the “file explorer” to improve the reading of it.
I address my best wishes for 2010 to you.
Erric

I’ve only tested on a single device, so it’d be interesting to see if it’s consistent on all handsets, but these are the values I found:

With the phone standing up on the right edge of the screen (the side opposite the hardware volume buttons) – 0

With the phone standing up on the left edge of the screen (the side with the hardware volume buttons) – 1

With the phone standing up on the bottom edge of the screen (the side with the USB connector) – 2

With the phone standing up on the top edge of the screen (the side with the power button) – 3

With the phone lying down on its face – 4

With the phone lying down on its back (with the screen side up) – 5

typedef enum ORIENTATION {
O_RIGHTEDGE = 0,
O_LEFTEDGE = 1,
O_VERTICAL_BOTTOMDOWN = 2,
O_VERTICAL_TOPDOWN = 3,
O_FLAT_FACEDOWN = 4,
O_FLAT_FACEUP = 5
} ORIENTATION;

Download the Sensor SDK sourcecode. If you open it, somwhere you will find where the author is hooking up to a event from the registry.

Search your registry after the event/key that changes when the keyboard slides. The write another dll in .NET where you hook up to this event in the registry and throw a new C# event. The you have a simple library that will thorw an event whenever the keyboard slides.

Background:
Nomatter if it is the accelerometer or the keyboard that slides, the OS (in this case Windows Mobile) will set a value in the registry. In your case probably either in the keyboard node or in the screen node. Find the value your self, im not sure where it is. (But its there..)

In c# its possible to access the registry and hook up to a key. Taht will kame .NET catch the event that the OS throws and make it possible to do what ever you want in C#.

And the Sensor SDK does exactly this. It works in two ways. 1: It polls the current oposition from the registry and then calculates the vector – forget about that part.
But the Orientation-property is calculated by hooking up to the landscape, faceup, facedown etc in Windows Mobile. And thats the idea you need to go for.

I strongly advise you (for good SW architecture sake) to put it in a assenbly and make that assembly throw an event. In taht way you can reuse the assembly in other projects AND maybe others can gain from you hard work.

Happy coding.
Feel free to get back to me.

Thanks in advance.