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I am currently writing a smartphone app in vb (VS 2005) to deploy at several of our sites. The app will track connectivity to determine if a mobile solution (working in a connected environment) will be feasible and will also be used to gather user feedback with regard to the specific device and ease of use. I can use the State and Notification Broker API to determine available connections (and I have a webservice to test whether or not I have a good enough connection to perform a unit of work), however, I'd also like to track a users location within a building (ie which access point is being used at a given interval) to evaluate connectivity within various locations around the building. Is there any way to track which AP is used?
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Hey anyone,
I have a little problem with Double Buffering under Windows Mobile 2003 with C#/.NET CF
In contrast to desktop computers I have no possibility too use SetStyle to let the framework do the double buffering.
And when I work with bitmaps to buffer everything, it remains flickering.  Examples from CodeProject don't work either on my pocket, I guess it's because I cannot override the UserControl's PaintBackground Event, since there is none to override. At least I have only one strong flicker instead of continous painting. 
Any suggestions? Or any hint how to realize it under Windows Mobile?
Thanks in advance!
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I do double buffering on Windows Mobile 2003 devices. It works well. Show your code and I might be able to help you.
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Of course you can override the PaintBackground event.
protected override void OnPaintBackground(PaintEventArgs e)
{
// Do nothing
}
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I am developing a async socket communication for TCP these days,I deploy TCP server on PC and TCP client on PPC,it works well in .net 2003 with PPC2002 Emulator,but when I deploy my program to My PPC(WM 5),It doesn't work and return a socket exception,why?Can anyone help me?
I will email my code to anyone who what to help me to catch the bugs,thx
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becouse my ppc wireless adapter is not work correct
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I want to buy a device with the Windows Mobile 2003 SE and Windows Mobile 5.0. Please, read full history here[^].
My question is: I can to install (upgrade, update or run side-by-side) .Net Compact Framework 2.0 in a Windows Mobile 2003 SE or Windows Mobile 5.0 device?
As run "side-by-side" I mean maintain the existing .Net Compact Framework version, and install another framework. Like in my desktop computer, that have installed:
.Net 1.0
.Net 1.1
.Net 2.0
.Net 3.0
.Net 3.5
For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.(John 3:16) ![Badger | [badger,badger,badger,badger...]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/badger.gif)
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Yes, you can install Compact Framework 1.0 and 2.0 side-by-side. Microsoft claim, however, that if CF 2.0 is installed, CF 1.0 is not necessary. See for example here[^]. Note that both Windows Mobile 2003 SE and Windows Mobile 5.0 have .NET CF 1.0 in ROM, but these might not be the latest versions.
We recently discovered that a Windows Mobile 5.0 Pocket PC Phone Edition device we're using suffers from 'DLL crunch'. This is where a process allocates enough memory for data that there is not enough space left to load any more DLLs. For more information on this issue see Windows CE .NET Advanced Memory Management[^] in MSDN Library. In our case it was actually device.exe, the process that hosts drivers, that was failing, and this caused all sorts of odd problems.
One of the issues here was that we were loading .NET Compact Framework 2.0 SP1 and SQL Server 2005 Mobile Edition (SQL Server CE) from persistent storage rather than the ROM version, which is CF 1.0. CF 2.0 SP1 and SQLCE come to about 3MB of DLLs all by themselves, which is enough to move from the out-of-box configuration on this device to the DLL Crunch state. Part of the problem is that Windows Mobile 5.0 Pocket PC Phone Edition now has so many, large, execute-in-place (XIP) DLLs that they've overflowed the 32MB area added in Windows CE 4.0 (discussed in the linked article) and started consuming a large part of your process address space again, leaving only around 18MB free for the application.
For this reason it might be sensible to stick with CF 1.0, but note that CF 1.0 is seriously cut-down compared to the desktop. CF 2.0 is a bit better in this regard.
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Hi,
Is there any control (UI) library (free or open source) for compact framework?
Thanks,
Ivan.
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I want to develop an application on PDA whcih can open and close the connection of network. But I can't find the proper function to control it. I think this function should be existed. Would someone be kind to tell me about this? Thx!
Be regard.
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now i want to develop a database driven application by VS.Net2005 and which will run on PDA.so please
tell which files i need to download and installed in PDA as a result my application can run successfully.
and from where i can download those file.plzz tell me the url.also tell me the url from where i can download
sql server CE for pda.i need total instruction in detail like from where and how many files i have to download
and their url and i need to know which files i have to installed one-after-one.so plzz guide me in detail.
tbhattacharjee
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Hi,
I have an ASUS P535 and I have a problem with GPS. If I use TomTom Navigator, I don't have any problem, but if I use the gps sample from Microft I have the next problem:
- Sample project: Microsoft.WindowsMobile.Sample.Location (ProgramFiles\Windows CE Tools\wce500\Windows Mobile 5.0 Pocket PC SDK\Samples\Cs\Gps)
- Error: In the function WaitForGpsEvents the code stop indefinitily WaitForMultipleObjects
- The Microsoft sample, haven't any problem in HTC P3300
- The code and error:
private void WaitForGpsEvents()
{
lock (this)
{
bool listening = true;
IntPtr handles = Utils.LocalAlloc(12);
Marshal.WriteInt32(handles, 0, stopHandle.ToInt32());
Marshal.WriteInt32(handles, 4, deviceStateChangedHandle.ToInt32());
Marshal.WriteInt32(handles, 8, newLocationHandle.ToInt32());
while (listening)
{
int obj = WaitForMultipleObjects(3, handles, 0, -1); (!!!!!ERROR STOP HERE indefinitely!!!!!!!!!!!!!!!!!!!).
if (obj != waitFailed)
{
switch (obj)
...
{
case 0:
// we've been signalled to stop
listening = false;
break;
case 1:
// device state has changed
if (deviceStateChanged != null)
{
deviceStateChanged(this, new DeviceStateChangedEventArgs(GetDeviceState()));
}
break;
case 2:
// location has changed
if (locationChanged != null)
{
locationChanged(this, new LocationChangedEventArgs(GetPosition()));
}
break;
}
}
}
// free the memory we allocated for the native handles
Utils.LocalFree(handles);
// clear our gpsEventThread so that we can recreate this thread again
// if the events are hooked up again.
gpsEventThread = null;
}
}
Some idea or solution?
Thank you
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Does the Asus provide gps sharing through a virtual port scheme. If so this may be your problem. The workaround would be to implement your own polling and NMEA sentence data parsing routine.
I experienced a problem on an HP Travel Companion with the serial port data received events when the virtual port feature was being used. The virtual port feature is intended for sharing of the gps port by multiple applications.
When I disabled the feature and accessed the port directly the data received event was fired. If I enabled the feature I had to use a polling routine to get the serial port data.
I do not think that this is a bug. I am not sure how I would implement a data received event for multiple listeners when using virtual ports.
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Hi, everyone!
I want to find the answer for a question. That is: how to close bluetooth port? The operation on bluetooth always through SOCKET API. Then can I close and open it as SOCKET? I hope someone can tell me. Thx! 
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Hi
I want to ask that can we show a jpeg picture in Windows CE 4.2? If we can do that which class we should use? I am using eVC++ 4.
Thanks
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 YOOOOOOOOOOOOOOOOOOOOOOO ASHOELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
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I have PPC with WindowsCE german language but I want to install WindowsCE in english language.
Can anyone tell me the way how can I install WindowsCE in english language?
Regards
I Love SQL
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Hello,
I am trying to implement a feature on the PDA Application (Windows CE/ C#). There is a button and a label. While this button is pressed and remains pressed, keep changing/incrementing the content of the label.
This seems to fit a mouse down/up event very well, but unfortunately there is no mouse down/up for the button on .NET compact Framework 2.0.
Thanks for helping,
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The only way that I know to do this is to make your own button class derived from control. Then you can use the mouse events from the control class.
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I have a problem about Socket connection following:
I program 2 software for PC and Pocket PC for Socket connection to a Socket server. I have sent a string to Socket server, and receive a string. My problem is: this code run properly with PC, but not for Pocket PC. With Pocket PC, the string that receive from Socket server is not properly, less than the string received for PC.
Can you help me! Thanks very much!
Sorry, my English is not good.
----------------------------------------------------------
Best regards,
Le Van Linh
System of Information & Communication
PFIEV - K47 - Hanoi University of Technology
Email: linhlv84@gmail.com
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Can u show me ur communication code...
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Hello ! Does anyone knows how to resolve that.
I maked a simple project (Web Project) that open a document word and write some lines .
Running with Visual Studio works well , but when I make a deploy nothing happens and if I stop the process winword in the tasks I receive the next message.
If anyone knows the solution I am very thankful.
Thanks,
Valmir
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Runtime.InteropServices.COMException: Falha na chamada de procedimento remoto. (Exception from HRESULT: 0x800706BE)
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[COMException (0x800706be): Falha na chamada de procedimento remoto. (Exception from HRESULT: 0x800706BE)]
Microsoft.Office.Interop.Word.Documents.Open(Object& FileName, Object& ConfirmConversions, Object& ReadOnly, Object& AddToRecentFiles, Object& PasswordDocument, Object& PasswordTemplate, Object& Revert, Object& WritePasswordDocument, Object& WritePasswordTemplate, Object& Format, Object& Encoding, Object& Visible, Object& OpenAndRepair, Object& DocumentDirection, Object& NoEncodingDialog, Object& XMLTransform) +0
automacaoWord.Open(String strFileName) +129
_Default.Button1_Click(Object sender, EventArgs e) +84
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.210
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Since my question in the C# forum did not get the right results (or with other words: None *G*), I better ask herein.
All I need is simply a hit-test on a polygon, means to detect of a point is laying within my polygon.
There is no polygon class in .NET CF 2.0 (requires common .NET 3.0), and there is no support for GraphicsPath to build a region other than circles, rects, etc...
Is there any Polygon class out there for me that would support a hit-test? Just giving it the 2-dimensional points which create the polygon, and checking if another point is in it.
Thanks in advance
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Since there was no ready-to-use class and I was not about to write an own polygon class that can handle complex forms and calculates for intersection or point in polygon, I made an quick hack. :-p
I simply use a temporary white bitmap in the memory, I make DrawPolygon into with red, and then check for the pixel where the point to check is.
I know, dirty hack, but it works under .NET CF where I have no GraphicsPath etc. 
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