Mobile Discussion Boards

virtual bluetooth port registration problems

Jim Xochellis24-Aug-10 4:15

24-Aug-10 4:15

Hi list,

I have written an mobile MFC application, which is using virtual Bluetooth ports and runs without problems in two mobile devices (HTC & SAMSUNG) both equipped with Windows Mobile 6.1 Professional. In order to achieve this, I have followed the instructions of an MSDN article (http://msdn.microsoft.com/en-us/library/ms881004.aspx) which only requires Windows CE 5.0.

However, when I have recently tried to run this same application in a brand new IPAQ equipped with Windows Mobile 6 Classic, (CE OS 5.2.1711) the RegisterDevice() function failed to do its job. Any ideas? Any suggestions where to look at?

I have also noticed that the Bluetooths settings GUI in this IPAQ device is quite different (compared to the others I have worked with) and doesn't assign a specific port number to each connected Bluetooth device, but has a (global?) pair of inbound/outbound ports. Is this because I am having Windows Mobile 6 instead of 6.1 or maybe because I am having Windows Mobile Classic edition instead of Professional? Any suggestions where to look at?

Thanks in advance,
Jim Xochellis

HomePage: http://jimxoch.freehost.gr/

Cross platform mobile development frameworks... are they any good?

rastaVnuce23-Aug-10 22:55

rastaVnuce

23-Aug-10 22:55

So, I am considering the use of some of these tools, for the obvious reasons.
Anyone has any good or bad experience with any of them? Recommendations why, or why not?

I've set a poll[^] on this, too.. if you'd like to vote Smile | :)

We are using Linux daily to UP our productivity - so UP yours!

Re: Cross platform mobile development frameworks... are they any good?

All Time Programming4-Sep-10 1:12

All Time Programming

4-Sep-10 1:12

With Cross platform also I have noted problems. Something may work in one type but fails in other, wheras some works on all. My experience doesn't feel them reliable.

Thanks & Regards,
Software Developer
(Application, Web, Mobile)
Sun Certified Java Programmer

How to launch a program on Smartphone emulator

Dave Parker20-Aug-10 6:42

Dave Parker

20-Aug-10 6:42

I've googled around and looked in the help files but only seem to be finding more advanced stuff than what it is I need to do.

Using the "USA Windows Mobile 5.0 Smartphone R2 QVGA" emulator in device emulator manager I can start up the emulator, cradle it, and use Explorer on the host machine to copy in a CAB file, which is the installer for a program I want to test.

The problem is the emulated phone itself doesn't seem to have any equivalent of Explorer, so I can't browse to, and run the CAB file. I also can't find anywhere where the start menu shortcuts are kept using explorer on the host.

What is the most simple way to run the CAB file on the emulator?

This isn't actually for development by the way (though I do have Visual Studio installed) - I just want to try out a few applications in a sandbox environment before installing on my real phone.

Need Help recovering a file

Deathscyther33019-Aug-10 11:28

Deathscyther330

19-Aug-10 11:28

I got referred to this site by a friend. I have a restored .3gpp file that is corrupted since i deleted it and it was probably overwritten. Is there anyway to restore it or at least salvage some of the video? I was told i could use a hex program to change the header with another video that works but i'm not sure how to do this.

sharing database in mobile phone with pc

csng416-Aug-10 16:08

csng4

16-Aug-10 16:08

i have to develop a window mobile application but due to limitation of mobile application i have to share my database in mobile application to pc for further process.anyone got idea about this?

Re: sharing database in mobile phone with pc

annathor23-Aug-10 23:15

annathor

23-Aug-10 23:15

make your mobile app save the location of the database file in the windows mobile registry.
on your desktop app use rapi.dll to read the registry value on the mobile, and fetch the file using rapi.dll
If the desktop application is writen in a .Net language you need to p/invoke the methods you need in rapi.dll.

Hope it helps.

Re: sharing database in mobile phone with pc

Joe Woodbury2-Sep-10 6:36

Joe Woodbury

2-Sep-10 6:36

Just an idea, but I thought SQL Server Compact Edition (SQL CE) created binaries compatible across all platforms using SQL CE.

Re: sharing database in mobile phone with pc

All Time Programming4-Sep-10 1:26

All Time Programming

4-Sep-10 1:26

I had a situation where I had to save data of Mobile App in Mobile & at the end of the day, data was transferred to PC.
Simply store the data in CSV, txt or such light weight format. While transferring to PC, parse the data accordingly. PC App & mobile App both will be knowing where the data is being stored, co no need to store path seperately anywhere. Yet you may confirm the path and/or ask for a new path from PC parser app of file stored in mobile.

Thanks & Regards,

Note: Always vote according to your satisfaction of the answer, afterall somebody is giving time to help you.

Application deployed on MC3090 gets erased... Help required

Amit Sk Sharma8-Aug-10 19:50

Amit Sk Sharma

8-Aug-10 19:50

Hi
Hope it's right Forum to put my question...

I have developed & deployed one dotnet application "Dual Bar Code Scanner" on MC 3090 but whenever battery is discharged or removed from device, and attached again, all other applications exist there except of my application. I wish to know; do I need to register my application at the time of installation? or any other requirement is there to make my application stable...... please help me to resolve the issue

Awaiting for positive

With Thanks & Regards
Amit Sk Sharma

Re: Application deployed on MC3090 gets erased... Help required

mmazuera12-Jan-11 4:11

mmazuera

12-Jan-11 4:11

Change your Backup Battery in the MC3090. This will fix the problem of loosing your custom applications when you change batteries.

mmazuera

Calling RESTful web service from HTML in Android using JSON

neer16-Aug-10 3:40

neer1

6-Aug-10 3:40

I am trying to call the RESTful web service on my local machine from the Android emulator which has a thick app containing HTMl page. I am calling the web service using JSON. The link works fine on the emulator browser but when calling from the app, it doesnt retreive any value.

$.getJSON("URL",function(data){});

GSM Connection Level

Tyler455-Aug-10 23:01

Tyler45

5-Aug-10 23:01

Dear Friends,

We have to get information of gsm connection level in c# (or vb) in windows mobile device
Is there anyway ?
Thanks in advance

Re: GSM Connection Level

KingsGambit9-Aug-10 20:25

KingsGambit

9-Aug-10 20:25

check if there is any TAPI calls. Check if following discussion helps:
What is GSM connection [^]

Re: GSM Connection Level

Can SARIGÜL2-Oct-10 12:03

Can SARIGÜL

2-Oct-10 12:03

You cand find this under the AT Commands articles. For learn the signal quality you can use these at commands...

AT+CSQ
AT+CSQ=?

asp.net mobile application for my college

malakblueangel31-Jul-10 15:33

malakblueangel

31-Jul-10 15:33

i need a simple lessons for asp.net mobile apps Frown | :(

Re: asp.net mobile application for my college

Smithers-Jones4-Aug-10 9:58

Smithers-Jones

4-Aug-10 9:58

Ever heard of Google? Search-results for "create asp.net mobile application"[^]

"I love deadlines. I like the whooshing sound they make as they fly by." (DNA)

Persistent WinCE program/storage memory setting [modified]

hairy_hats29-Jul-10 2:01

hairy_hats

29-Jul-10 2:01

Hi all,

If I move the slider to allocate more RAM to programs under Wince 5.0 and click OK, the setting is lost after a reboot, even if I store the Registry to Flash. Is there a way for this setting to persist over reboots?

TIA!

modified on Thursday, July 29, 2010 10:39 AM

C# Change IP Address

dataminers28-Jul-10 11:00

dataminers

28-Jul-10 11:00

How can I change IP address using with C# on Windows CE OS.

I use .NET Compact Framework (3.5), how can I change IP address? And SubnetMask, DefaultGateway, DNS.

If you know openNETCF example, please write link, I found same class but I can't use it, because this class is privite.

Thanks...

Re: C# Change IP Address

pc1824-Aug-10 9:14

pc18

24-Aug-10 9:14

Hi, have you found the solution to your question? I am currently searching for a solution myself. I am using this code on a Windows Mobile 6 device, but it doesn't seem to set the IP to the hardcoded one. Instead, it stays 0.0.0.0. Maybe you or someone else can figure this out. Cheers!

private NetworkInterface wireless_interface;<br />
System.Net.IPAddress ip = System.Net.IPAddress.Parse("192.168.16.1");<br />
            if (wireless_interface == null)<br />
                return;<br />
            wireless_interface.CurrentIpAddress = ip;<br />
            wireless_interface.Bind();

Re: C# Change IP Address

phil.o31-Aug-10 6:00

phil.o

31-Aug-10 6:00

Hi,

At first sight I see a major issue in the code you provided :

private NetworkInterface wireless_interface;
...
if (wireless_interface == null)
return;

Since you never assign the wireless_interface variable to an instance of NetworkInterface, it will always be null ; thus your method will always return before reaching the wireless_interface.CurrentIpAddress = ip; line.

Why my own Today-Item on home screen will always over other item?

whiteclouds27-Jul-10 22:54

whiteclouds

27-Jul-10 22:54

Hi, all!
I have make a today-item on home-screen. I find a problem. That I don't know how to make the order of it in registry. At first, I make the order as a value different with any existed item. But I find my item will always over a existed item. The order's value of the item been over is somewhat greater as my own. I don't know what should I do to avoid the over. By the way, I notice that the value of order of these items will change at some time, except my item. I am wonder if some applications are monitering this value, and modify it as the condityion? Or I should write some code to process a message I'm not process now? What should I do?

Pls help me! Thx!

There is some white cloud floating on the blue sky. That's the landscape I like.

HTC desire back button

wercipack27-Jul-10 8:32

wercipack

27-Jul-10 8:32

Anyone out there knows why the phone displays a message such as:

64|pageRedirect||http://whateversite/subfolder/subfolder/page.asp

in the screen instead of showing the previous page?

Proper VersionMin/VersionMax/BuildMax values for .inf file?

LunaticFringe26-Jul-10 11:45

LunaticFringe

26-Jul-10 11:45

Hey, all -

I'm putting together an installation package for an app targeting WM Professional devices running WM 5.0 ~ WM 6.1. I understand that the VersionMin should be set to 5.1 to correspond to WM5.0, and the VersionMax should be 5.2, to correspond to WM6. But I want to limit it to WM6.1 and below. I understand that at runtime the build number can be attained via GetVersionEx, and that for WM6.5+ devices, the build portion of the string returned would be >21,000.

So... would setting the BuildMax value in the .inf file to, say, 20,999 have the desired effect; i.e., would it allow installation on devices running 6.1 and below, but prevent installation on devices running 6.5 and above? (Or at least pop up the warning window saying the app is incompatible?)

And is there any way to detect WM Standard as opposed to Professional at install time?

Confused | :confused:

L u n a t i c F r i n g e

Re: Proper VersionMin/VersionMax/BuildMax values for .inf file?

LunaticFringe26-Jul-10 22:31

LunaticFringe

26-Jul-10 22:31

Just in case someone else is looking for this... manually modifying the .inf file and then invoking cabwiz didn't work, at least not with the BuildMax values I tried - the installation ran on 6.5 with no problem.

It looks as if the only way to prevent installation on 6.5 devices is to check the build and OS version from a custom action during the install process, and bail if 6.5 is detected.

L u n a t i c F r i n g e

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