I'll be developing something for a Windows Mobile device using CompactFramework/C#. I wonder if there is some event available that can capture any user driven event (click, keypress, ...) in context of the device. Sure, I could add some detection code in any of my click event handler for example but I assume that there hundreds of them.
So is there some event or windows mobile API related call that could help me out?
You can intercept key presses using the Microsoft.WindowsCE.Form.MessageWindows class. It is impossible to intercept click events.
You can capture keyboard events device-wide via hooks (be aware that they are officially unsupported and so could disappear at any future release - though they've been there as long as I've been using CE, which is a long time). We actually added keyboard hook support to the latest version of the SDF if you're after something pre-built or for code. Mouse events, however, are not hookable in CE unless you write a new touch panel driver.