passing string from c# to c++ dll - Mobile Discussion Boards

likefood26-Jan-06 6:48

26-Jan-06 6:48

I've briefly searched through the message boards, but didn't find two answers I'm looking for. As always, if they've already been discussed, just point me in the right direction.
In the normal dotNet Framework, I just use the Process class in the Threading class to start a new process (like, starting a new program from inside my program, basically giving it the same string I'd type at a command prompt). But the dotNet COMPACT Framework doesn't seem to have that functionality. Does anyone have any work-arounds? I'm trying to make my own C# editor/compiler for PPC, and I'm having a problem calling cscc.exe (with arguments) from inside my program.

My second quandry is how to copy information to (and paste information from) the PPC clipboard. The Clipboard class doesn't exist in the Forms class in the COMPACT Framework. Any ideas?

-Daniel

Re: new process and clipboard

likefood29-Jan-06 7:50

likefood

29-Jan-06 7:50

By the way, I meant "I just use the Process class in the System.Diagnostics namespace", not Threading class.

Anyone at all have any ideas?

-Daniel

Re: new process and clipboard

likefood30-Jan-06 12:22

likefood

30-Jan-06 12:22

I guess I just need to upgrade to .Net Framework 2.0 (just read about the Process class in the Compact Framework 2.0).

evc++4 and Loquendo TTS error LNK2019 problem

jhenderson0126-Jan-06 0:27

jhenderson01

26-Jan-06 0:27

Hi,

I am new to pocket pc and c++ development and I am have a problem compiling a sample project.

I am using embedded visual c++ 4.0 with SP3 and the Pocket PC 2003 SDK and am trying to compile a sample project from the Loquendo TTS(text to speech synthesiser) 6.4 PPC 2003.

The sample project builds ok for WCE ARMV4 debug, but since I don't have a Pocket PC PDA to run it on, this isn't much use.

When I try to build the project for Win32(WCE emulator) debug so that I can try it out on the Pocket PC emulator, I get 17 linker errors which I have no idea how to get rid of.

I am using the Win32(WCE emulator)Debug and the Pocket PC 2003 Emulator from the drop down menu.

The linker errors I get are listed below:

Linking...
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol
__imp__ttsDeleteSession referenced in function "public: virtual __thiscall
CLTTSDemoDlg::~CLTTSDemoDlg(void)" (??1CLTTSDemoDlg@@UAE@XZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol
__imp__ttsRegisterCallback referenced in function "private: virtual int
__thiscall CLTTSDemoDlg::OnInitDialog(void)"
(?OnInitDialog@CLTTSDemoDlg@@EAEHXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol
__imp__ttsGetError referenced in function "private: virtual int __thiscall
CLTTSDemoDlg::OnInitDialog(void)" (?OnInitDialog@CLTTSDemoDlg@@EAEHXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol
__imp__ttsNewInstance referenced in function "private: virtual int __thiscall
CLTTSDemoDlg::OnInitDialog(void)" (?OnInitDialog@CLTTSDemoDlg@@EAEHXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol __imp__ttsQuery
referenced in function "private: virtual int __thiscall
CLTTSDemoDlg::OnInitDialog(void)" (?OnInitDialog@CLTTSDemoDlg@@EAEHXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol
__imp__ttsNewSession referenced in function "private: virtual int __thiscall
CLTTSDemoDlg::OnInitDialog(void)" (?OnInitDialog@CLTTSDemoDlg@@EAEHXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol __imp__ttsRead
referenced in function "private: void __thiscall CLTTSDemoDlg::OnSpeak(void)"
(?OnSpeak@CLTTSDemoDlg@@AAEXXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol __imp__ttsStop
referenced in function "private: void __thiscall CLTTSDemoDlg::OnStop(void)"
(?OnStop@CLTTSDemoDlg@@AAEXXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol __imp__ttsPause
referenced in function "private: void __thiscall CLTTSDemoDlg::OnPause(void)"
(?OnPause@CLTTSDemoDlg@@AAEXXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol __imp__ttsResume
referenced in function "private: void __thiscall CLTTSDemoDlg::OnPause(void)"
(?OnPause@CLTTSDemoDlg@@AAEXXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol
__imp__ttsSetAudio referenced in function "private: void __thiscall
CLTTSDemoDlg::OnSelchangeVoices(void)"
(?OnSelchangeVoices@CLTTSDemoDlg@@AAEXXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol
__imp__ttsNewVoice referenced in function "private: void __thiscall
CLTTSDemoDlg::OnSelchangeVoices(void)"
(?OnSelchangeVoices@CLTTSDemoDlg@@AAEXXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol
__imp__ttsDeleteVoice referenced in function "private: void __thiscall
CLTTSDemoDlg::OnSelchangeVoices(void)"
(?OnSelchangeVoices@CLTTSDemoDlg@@AAEXXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol
__imp__ttsGetLanguage referenced in function "private: void __thiscall
CLTTSDemoDlg::EditUpdate(void)" (?EditUpdate@CLTTSDemoDlg@@AAEXXZ)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol
__imp__ttsAudioFreeSpace referenced in function "public: void __thiscall
CLTTSDemoDlg::OnTTSLoop(unsigned int,long)"
(?OnTTSLoop@CLTTSDemoDlg@@QAEXIJ@Z)
LTTSDemoDlg.obj : error LNK2019: unresolved external symbol __imp__ttsDone
referenced in function "public: void __thiscall
CLTTSDemoDlg::OnTTSLoop(unsigned int,long)"
(?OnTTSLoop@CLTTSDemoDlg@@QAEXIJ@Z)
emulatorDbg/LTTSDemo.exe : fatal error LNK1120: 16 unresolved externals
Error executing link.exe.

LTTSDemo.exe - 17 error(s), 0 warning(s)

I have tried using information from this webpage to resolve the issue but
haven't had any luck:

http://support.microsoft.com/default.aspx?scid=kb;[LN];830482

I would really appreciate any help that anybody can give me.

Using SOAP header produces NullReferenceException on CF

Ivanets25-Jan-06 23:47

Ivanets

25-Jan-06 23:47

Hi All!

I need to extend my calls to the Web service with custom SOAP header. I use the following sample code which works just perfect on my desktop under .NET 1.1:

<br />
UserManagementService service = new UserManagementService();<br />
service.RequestHeaderValue = new RequestHeader();<br />
service.RequestHeaderValue.Headers = new object[1];<br />
			<br />
ListUsersRequest request = new ListUsersRequest();<br />
            			 <br />
object[] pair = new object[2];<br />
pair[0] = "UserName";<br />
pair[1] = "001";<br />
service.RequestHeaderValue.Headers[0] = pair;<br />
			<br />
try<br />
{<br />
	service.ListUsers(request);<br />
}<br />
catch(Exception ex)<br />
{<br />
	MessageBox.Show(ex.Message);<br />
}  <br />

But when i move to .NET CF it produces NullReferenceException.
cgacutil tells that i use version 1.0.4292.00 on PocketPC.

What is wrong?

Thanks!

O2 Xda Exec Price

Mekong River24-Jan-06 12:26

Mekong River

24-Jan-06 12:26

Hi, does anyone know about the total price of this product?[^]

BlueTooth Search

sam_software23-Jan-06 5:20

sam_software

23-Jan-06 5:20

We are working on Windows Mobile 5.0.(VS 2005 VC++) Bluetooth Search is established using WSALookup Service.
Things to resolve are :-
1. We want to pair the device detected.
2.We want to set the Paired device a com port (say COM8) as the out going port.

Pl provide any code samples for the above.

passing string from c# to c++ dll

iriedel20-Jan-06 12:18

iriedel

20-Jan-06 12:18

Hi everbody,

I had problems passing strings from a c# project to an unmanaged c++ dll.

I work with vs .net 2005. I've created a smart device win32 dll with c++, exporting some symbols. In my dll i have two functions.

My Headerfile looks like this:

#ifdef __cplusplus
extern "C"
{
#endif

UNMANAGED_API int fnUnmanaged(LPCTSTR lpszMessage);

UNMANAGED_API int fnUnmanaged1(char* message);

#ifdef __cplusplus
} // extern "C"
#endif

and my .cpp is this:

UNMANAGED_API int fnUnmanaged(LPCTSTR lpszMessage)
{
return MessageBox(NULL, lpszMessage, _T("Unmanaged"), MB_OK);
}

UNMANAGED_API int fnUnmanaged1(char* message)
{
if (message[1] == (int) 'a') return true;
else return false;
}

Then I created a c# smart device pocket pc 2003 application. I import the dll and the two functions.

private void OnPressMe(object sender, EventArgs e)
{
fnUnmanaged("That tickles");

mystring= "Hallo";
bool test = fnUnmanaged1(mystring);

}
[DllImport("Unmanaged.dll")]
private static extern int fnUnmanaged(string message);

[DllImport("Unmanaged.dll", CharSet = CharSet.Unicode)]
private static extern int fnUnmanaged1(string filename);
}

The first function (MessageBox) works fine but the second was wrong. I tried the same thing with c++ dll and c# application for normal windows applications and everything works fine. "filename"was automatically converted from string to char*. But it does not work within a smart device application. The return value is always false. But it should be true if the string passed to the dll in the right way.

Both projects (c# and c++) were created automatically with .net. I changed nothing in the settings or elsewhere.

Has anybody an idea where the problem is?

Thanks, Ivonne

Re: passing string from c# to c++ dll

Mike Dimmick22-Jan-06 0:34

Mike Dimmick

22-Jan-06 0:34

To correctly convert from C# string to C++ char*, you should mark the import with CharSet.Ansi.

The Compact Framework does not support CharSet.Ansi. You can only pass Unicode strings to a native DLL.

Stability. What an interesting concept. -- Chris Maunder

Problem spawning external program in PPC2003SE

Dalkie18-Jan-06 22:44

Dalkie

18-Jan-06 22:44

Hi,

I'm trying to develop an application in both PPC2003 and PPC2003SE in eVC++ 4.0. In this application I need to call an external program so I use ShellExecuteEx and WaitForSingleObject in order to wait for the end of the external execution. This code doesn't have any problem running in PPC2003.

My problem comes running it in PPC2003SE, the process is created in background (I can see it's runing in the Process viewer) and I'm not able to bring it foreground. I tried with CreateProcess instead of ShellExecuteEx, FindWindow and EnumWindows (to obtain the Hwnd and set it to the foreground) and the most I achieved was an inmortal window that doesn't answer to the user's actions.

With the same code I can call another programs without any harm, but I found impossible to call that one. So, could anyone give me a hint? Thanks.

drawing lines in Pocket PC program "Notes"

muradx718-Jan-06 1:56

muradx7

18-Jan-06 1:56

I need to draw antialiased lines quickly. Program "Notes" do it well, but it's using an InkX control. This control is not suitable for me. What kind of API's or SDK's should I use? It is desirable to use GDI (MFC), not GDI+ (.NET)
I think, that I have to use some low-level API to draw quickly.

Can mobile device send and receive SMS through HTTP Protocol

bibi040417-Jan-06 17:24

bibi0404

17-Jan-06 17:24

Dear All,
Can someone give me some information about mobile device (Smartphone, PDA) send and receive SMS or MMS through HTTP Protocol.

Thanks

bibi0404

Re: Can mobile device send and receive SMS through HTTP Protocol

coder@coder.gr4-Feb-06 9:20

coder@coder.gr

4-Feb-06 9:20

Through an internet sms gateway Smile | :)

there are lot outthere where you can buy for an amount some sms

Symbol MC3000: database howto?

Hamid Reza Mohammadi17-Jan-06 4:12

Hamid Reza Mohammadi

17-Jan-06 4:12

I'm trying to rewrite a DOS application developed for Symbol PDT3100 family, for Symbol MC3000 with Windows CE 4.2 Proffesional.
Can anyone please tell me how can I develop a database application for this device and what technologies should I use?
I saw some articles on CodeProject.com using ADOCE and ... . However I think they are built to be used for PocketPC family not with such a device. For example when I wanted to install ADOCE development components on my desktop computer I got a message telling me I should install Pocket PC Platform builder or something like that.
If someone knows that this problem can be solved using some techniques please tell me how can I do that.
My development environment is Embeded Visual C++ 4.
Thanks.

-- modified at 10:13 Tuesday 17th January, 2006

Re: Symbol MC3000: database howto?

Mike Dimmick22-Jan-06 1:07

Mike Dimmick

22-Jan-06 1:07

ADOCE using the CEDB provider is pretty much obsolete. It was never very reliable.

You could consider SQL Server CE 2.0. The install page[^] suggests that you need to have eVC 3.0 and the Pocket PC 2000 SDK installed in order for the installation to succeed. This may be where the Platform Builder error message came from.

The built-in CEDB database is a property database, not a relational one. It isn't really designed to be used with a fixed schema, and it's not particularly fast.

A friend of mine has some experience with and recommends SQLite[^].

If you're moving from a Symbol 3100 to an MC3000, the company I work for could help you port your existing application. We specialise in mobile applications development, and have already ported a few applications using our Quantum porting library, which emulates portions of the Series 3000 BiosXxx calls and Symbol UK's ADL library. See our product overview[^]. If you used the ADL's Indexed File Manager feature and want to reuse that while rewriting the rest of your application, we have a compatible library.

Stability. What an interesting concept. -- Chris Maunder

Re: Symbol MC3000: database howto?

Hamid Reza Mohammadi22-Jan-06 4:11

Hamid Reza Mohammadi

22-Jan-06 4:11

I solved my problems with ADOCE for now and I'm trying to port my old application to MC3000 as fast as possible. I will use your suggested tools whenever my company is not in a hurry and I can spend more time on this application.
However Thanks for your great response! Rose | [Rose]

Embedded Visual C++ 4.0 installation problem

Garth Watkins16-Jan-06 7:38

Garth Watkins

16-Jan-06 7:38

Hi

I'm having a problem installing evc++ 4.0. The Install goes well and completes. However when I try to create a wizard based project, or any project for that matter, and compile it, I get a whole bunch of compile errors relating to paths not found. Upon examining the global paths i.e. Tools->Options , Directories tab within the IDE, I found that there are no include directories set. Whats more is that I can't set any up at all. They don't get saved. Now I've tried installing on another system and everything works outs O.K. On my system It just won't work. And before you ask, I am installing on an account with administrative privelages.

Any advice would be greatly appreciated.

Cheers
Garth

F stands for Fundamentalism, a degenerative brain disorder cured by self-detonation.

what J# is?

Sasuko13-Jan-06 2:55

Sasuko

13-Jan-06 2:55

Is a standard Microsoft Java developer IDE?
can i create webservices or wireless application?

Window CE - Playing Sound

karyeun11-Jan-06 21:41

karyeun

11-Jan-06 21:41

Is there any example that i can refer which allow me to play a sound, either .WAV, .MP3 in window CE? I m currently using C#. I managed to do this in WindowApplication with AxMediaPlayer, but it doesnt seems to work in SmartDeviceApplication.

Any advice will be pretty much appreciated, TQ

Re: Window CE - Playing Sound

Jumba66663-Feb-06 10:14

Jumba6666

3-Feb-06 10:14

Check out OpenNetCF for a soundplayer that will atleast do wavs.
OpenNETCF.Windows.Forms.SoundPlayer

sorry can't help with MP3.

tim

Java J2SE/ME to .NET CF dll

RolandAbt11-Jan-06 2:47

RolandAbt

11-Jan-06 2:47

Hi everybody!

I am looking for a way to migrate a java j2se or midp jar-file to a .NET Compact Framework compatible dll. All I find on the network so far is either Java->.NET Framework (but not CF) or Virtual Machines for Compact Framework, probably not allowing to access the java code from other C# applications running on the same device.

Thanks in advance for any help,
Roland

problem WM 5.0 InstallDir with accents

gbohl10-Jan-06 22:32

gbohl

10-Jan-06 22:32

Hello,
I develop with visual studio net 2003 and I use cabwiz.exe to create monappli.cab.
cabwiz.exe request a file monappli.inf which contains a section
[ CEStrings ]
AppName="MonAppli"
InstallDir="\Stockage intégré\MonAppli"
On the x50v in "Stockage intégré" the install is ok
On the x51v "Stockage intégré" does not exist any more,
therefore I thought that the install would have created what there is on the level of InstallDir.
The problem is that the install does not take the accents and installs me the appli in
\Stockage intgr\MonAppli.
My x51v is in VM 5.0 5.1.1702(build 14366.1.0.1) in French,
in the regional parameters I am in standard French and
the language of the system is FRENCH
I do not find null share where to indicate a page of code for the taking into account of the accents,
or another method so that it goes

thank you

gbohl

Web service with pocket PC

Donnylies10-Jan-06 19:05

Donnylies

10-Jan-06 19:05

Hai.. I had make webservice from PHP, then i make program client with dot net(mobile pocket PC with VB.NET) How i can send soap envelope to call my webservice?

Thank's Before

-- Lie --

how to start Mobile Development

shabonaa10-Jan-06 10:11

shabonaa

10-Jan-06 10:11

how can i start Mobile Development and what should i read?

Re: how to start Mobile Development

Hari Om Prakash Sharma23-Jan-06 8:10

Hari Om Prakash Sharma

23-Jan-06 8:10

To start mobile development, U have to learn about Java,J2ME(Java2 MicroEdition) & to deploy your source codes you need JavaWireless Toolkit, its free on sun.com site. u can than use ur package on any java compatible mobile.

Any query related to VB.NET+Network Programming
email: sharma.hariomprakash@gmail.com

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