Windows Mobile 6.x How to explicitly lock the app in one orientation?

I'm trying to get an app on the WinMo App Store.

As part of this, Microsoft App's Store has asked that I need to support landscape as well as portrait.

What they've said is OK is:

1. If dynamic switching is implicitly allowed, the app will be tested just as if it supports both portrait and landscape even if only a portrait or landscape resolution is checked.

2. You may explicitly lock the app in one orientation (which means portrait mode if the app does not handle landscape mode functions), provided the default OS orientation is preserved once the app exits.

I'd love to do answer 2 - but I can't find any way of doing it - and they won't provide me any other clues - they suggested I ask on the forums... so here I am on开发者_开发问答 Stack Overflow - far better than on the forums :)

Anyone got any suggestions?

---

This should be simple enough, the details of how to handle portrait to landscape orientation change are provided here. That articles recommend repositioning layouts, buttons etc. So, for the app to remain in portrait mode only, when it receives WM_SIZE notification, dont change the display at all.

One more thing, it is a better user experience if you can display a message asking user to go back to portrait mode to use the app. Otherwise its a bit disorienting, as most apps nowadays handle orientation change seemlessly.