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The _bstr_t constructors accepts both const TCHAR * and BSTR , so it should be direct:
CString strOne(_T("One"));
_bstr_t bstr(strOne);
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I'm getting this error:
error LNK2019: unresolved external symbol "void __cdecl _com_issue_error(long)" (?_com_issue_error@@YAXJ@Z) referenced in function "public: __thiscall _bstr_t::_bstr_t(unsigned short const *)" (??0_bstr_t@@QAE@PBG@Z)
Any suggestions?
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Anonymous wrote:
Any suggestions?
Yes. You have to declare this function in order to trap COM errors. This function will only be declared once. You can use the following:
void __stdcall _com_issue_error(HRESULT m_hr)
{
TCHAR pcszError[1024];
_stprintf(pcszError, TEXT("_com_issue_error(%ld)\n"), m_hr);
OutputDebugString(pcszError);
}
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I'd avoid _bstr_t altogether. Use ATL's CComBSTR. It's smaller.
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hi all,
How to create a pocket excel file using eVC++. Can anyone give me a sample code.
Thanks in advance
Mahesh
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hi
i tried to connect to pocket access using eVC++. But i am not able to establish connection.Can any one help me ..please. A sample code for connecting to pocket access will do.
Mahesh
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Hello,All;
How to scan access point around?
Thanks.
Joye
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I first had an older iPaq connected via it's cradle/usb. I went out, bought a new iPaq, installed ActiveSync 3.7 (after un-installing 3.5), now Visual Studio .NET 2003 can't establish a connection to the new iPaq.
What's with that?
Thanks!
-v
****************************
V. Jenks
www.scientifik.com
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Does ActiveSync 3.7 see your new iPAQ?
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Yes it does, however vs.net 2k3 does not. It did see it when I was using my old iPaq w/ AS 3.5. I uninstalled that and installed AS 3.7 to accomodate w/ my new iPaq.
Now vs.net won't recognized my pocket pc device. This means I don't have debugging capabilities, which really, really bites.
Thanks!
****************************
V. Jenks
www.scientifik.com
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... and reinstalling vs.net must be out of the question, right? Try to ask this question in www.pocketpcdn.com. There is a .Net-specific forum. Good luck!
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It's not entirely out of the question, however that's not something I'm at all interested in doing. There is no guarantee that it will solve the problem and it may end up causing new and unexpected problems that I don't have time to deal with right now (big deadlines coming up.)
Thanks, I'll try the folks there.
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Hello,
Where has a FTP client sample code written by evc?
Thanks.
Joye
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Hi all,
Can any one tell me how to connect to pocket access database and execute commands.I am using eVC++.
Mahesh
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Try using ADOCE. The type library is available in the adoce31.tlb file. You can use the #import directive on this file.
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hi
i am new to eVC++. can you please give me a sample code.
Mahesh
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There is an article on the Database section on creating ADO classes. You can adapt it to ADOCE. There are a number of database resources here: Pocket PC Developer's Network[^].
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Hi, Thank you for helping me before( i speak about CDC ).
Now i have another problem - this time with database. I've red a lot of materials about databases on Pocket PC, but still have some problems, for example where can i find this file : adoce31.tlb. And another one question - i've loaded one example of database using with ADO, and can't execute it on my Pocket. Thank you very much.
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Rassul Yunussov wrote:
for example where can i find this file : adoce31.tlb
I believe this file was available on older versions of the Pocket PC 2000 and 2002 SDK. Check this:
Missing ADOCE31.TLB?[^]
Rassul Yunussov wrote:
And another one question - i've loaded one example of database using with ADO, and can't execute it on my Pocket.
If you are using Pocket PC 2003, the cdb file format has changed. You will have to re-synchronize the mdb file.
Regards,
João Paulo
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About AdoSample - I've got this messages - Application AdoSample made the incorrect operation, and will be closed. Exception: 0xc0000005 Address: 00017610.
But this programm sucsessfully compiled on my Embeded Vc++ 3.0. I can't understand the problem.
And i tried some librarry - VOADO - this works properly but i can't connect with exactly file. I don't know where it stores the information i enter.
If you Know anything about this, please help. I'm on the very beginning of programming.
Thank YOU Verry much.
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Are you using Pocket PC 2003?
Regards,
João Paulo
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I really don't know i only know the version of Windows it is 3.0. I used Embeded 4.0 but programms i wrote didn't worked on my Pocket PC. And then i started to use Embeded 3.0. And everything was ok until i started to think about database . I hope this information will help . Thanks.I really appreciate your help.
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You are definitely using Pocket PC 2002 and AdoSample should work just fine. Maybe you did not install ADOCE on your device. See how here:
QA: How can I install ADOCE 3.1?[^]
Regards,
João Paulo
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When I bring my App to run on Windows Mobile 2003, the program cannot run. It displays a message "Record update error. Please check your data."
Any help?
-BHKien
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