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Tuesday, September 22, 2009 10:03 PM

ConnectivityManager in Android SDK: Compared with Connection Manager in Windows Mobile

Anyone who has ever used Windows Mobile (actually WinCE) Connection Manager will probably share mix feelings: on one side, the ConnMgr APIs provide a nice abstraction for applications to request and use a connection without knowing and controlling the
Posted by zhengpei | 2 Comments
Tuesday, August 18, 2009 10:25 AM

3rd Party Software Integration: What Quality Gates are Needed?

One of the key phases for a mobile device project is 3rd party software integration, which is usually done after initial software baseline has been established (BSP migration complete, driver stabilized, hopper & battery life pass). According to device
Posted by zhengpei | 0 Comments
Friday, August 14, 2009 2:45 PM

Windows CE Storage Manager Breakdown

The best architectural pictures for Windows CE / Windows Mobile Storage Manager are the followings (from msdn site ): Now, if you look at the following call stack on a WM6.5 device emulator (CE5), the above picture is much easier to understand: Call Stack:
Posted by zhengpei | 0 Comments
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Tuesday, August 11, 2009 10:37 AM

Using Power Monitor to Tackle Battery Life Problems: Examples

Power monitor (made by Monsoon solutions) is a very useful to improve device battery life. I think every OEM/ODM engineering team should have on handy to watch and troubleshoot battery life issues. Even better, bring the power monitor with your devices
Posted by zhengpei | 0 Comments
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Sunday, August 09, 2009 3:26 PM

Windows Mobile Device DRM Integration

Many devices today provide an OMA DRM 1.x/2.0 solution from a 3rd party (for example, from irdeto ). So how to verify if the integration has been properly done? Well, aside from the tests that your vendor performed, you can also use the following site
Posted by zhengpei | 0 Comments
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Friday, August 07, 2009 4:49 PM

DirectShow Tool GraphEdt on Windows Mobile

On Windows and Windows CE, the GraphEdt tool can be used to investigate (visually) what DShow filters are used for a given media file, and it is also very useful to verify if your filters work as expected. For desktop Windows, this tool is included in
Posted by zhengpei | 1 Comments
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Saturday, June 27, 2009 10:34 AM

Best Client Apps of Twitter, Facebook, LinkedIn, Youtube, Picassa for Windows Mobile

Here is the outcome of my little research... Best Twitter Client for Windows Mobile PocketTwit --------------------------------------------------------------------------------------------------------------------------------------- Best Facebook Client
Posted by zhengpei | 2 Comments
Friday, March 06, 2009 2:23 PM

Remote-Desktop into MacOS from Windows Mobile

Windows Mobile 6 has the built-in remote desktop client. So you can use it to remote desktop into any Windows machine running terminal services (i.e., running the RDP service that listens at Port 3389). For example, once you enable remote desktop on your
Posted by zhengpei | 3 Comments
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Tuesday, November 25, 2008 12:29 PM

Mobile OS Virtualization

Even before VMWare acquires Trango , the French company specialized in mobile OS virtualization , I've heard some OEMs in talks with Trango for future Windows Mobile devices. A picture is better than 1000 words. Here is a picture of Trango's virtual processor:
Posted by zhengpei | 1 Comments
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Friday, November 14, 2008 12:47 AM

Cellular Based Video Telephony on Windows Mobile

How do you enable Video Telephony on Windows Mobile? What are the things you have to be careful of? First of all, what is the underlying bearer? WiFi, WiMax, or 3G? For WiFi and WiMax, VT will be just a Video over IP application. For 3G, however, most
Posted by zhengpei | 1 Comments
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Thursday, September 11, 2008 11:35 PM

Debugging Stack Fault of Hopper Failure on Windows Mobile devices

1. Introduction Stack fault happens whenever a thread’s stack is almost used up, and the Windows CE kernel will generate a message of the problem like this: 9381584 PID:47c40bda TID:24ccc7ce [Stack fault]: Thread=85fa3a40 Proc=8060e640 'device.exe' 9381584
Posted by zhengpei | 2 Comments
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Friday, September 05, 2008 10:24 PM

Debugging Attached Process on Devices

Very often I need to build a quick test EXE or DLL and test it using device emulator. I can of course do this by using Platform Builder's "load from release directory" feature with a KITL enabled image. But this will require a full booting up of the image.
Posted by zhengpei | 1 Comments
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Saturday, August 02, 2008 1:43 AM

Cloud Computing: "Save To My SkyDrive"

Disclaimer: this post does not imply anything related to Microsoft Cloud Computing strategy. What does Cloud Computing (CC) mean to me? Two services for now: Microsoft SkyDrive is a service to store and share files on the web, and Google Docs enables
Posted by zhengpei | 1 Comments
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Friday, July 11, 2008 7:55 AM

How to Display all IE Mobile Favorites?

Let's say we want to write an application that displays all the favorites of IE Mobile and allows user to click them. Then IE Mobile should go to that URL. We can certainly write some code to retrieve all the favorites items from \Windows\Favorites by
Posted by zhengpei | 1 Comments
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Friday, June 27, 2008 12:52 AM

Device Hangs: Anti-Virus Software and ActiveSync Deadlock

I've been working on an interesting problem reported by a Windows Mobile partner. They have a anti-virus software installed on the WM6 device. And whenever they copy an infected file from desktop to the device, that anti-virus software will detect that
Posted by zhengpei | 1 Comments
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