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CDatabase supports Unicode queries. Where are you having problems after converting to Unicode?
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the code is something like this:
CDatabase myDatabase;
CString sSQL = "insert statement that contains UNICODE characters like çöşiğü";
myDatabase.ExecuteSQL(sSQL);
When I trace into ExecuteSQL() there I find this (in file vc98\mfc\src\dbcore.cpp):
<br />
AFX_ODBC_CALL(::SQLExecDirect(hstmt, (UCHAR*)T2A((LPTSTR)lpszSQL), SQL_NTS));<br />
As you can see the wide string I passed as a parameter is converted to ansi using T2A().
Since this is a core library, I cannot change it. Or am I thinking wrong?
Thanks for your interests.
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Here I am, lame again.
Hello everybody, I have another question. And this time I think I won't be able to answer it my self.
I want to know how to play the raw data from an audio stream (opened with AVIFileGetStream). I searched for a solution, but couldn't find any.
I read that I can play the audio data using DirectSound or some Win32 functions. I don't want to use DirectSound (yet). So that leaves those Win32 functions. Can anyone tell me what are these functions I should use? And there's another thing - what if the data is compressed. Do I have to decompress it and how should I do that?
Please help
  These smileys... I like them  .
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Hi,
I wrote a DLL,for serial port communication.When i open the port i have created a thread in suspended mode,even created Events in same function later on i have resumed the thread,i wrote callback function.This callback function is called ,when ever the recevie event is set,when ever i get data from the instrument.Then i read the data send it to client application through Firefunction,i.e by connection points.I have three commands CMDONE,CMDTWO and CMTHREE.I have set a BOOL variable blntwo=FALSE;if( blntwo==TRUE),i will read the data using callbackfuntion,if not i will return from the function ,even if the control comes into it.
First i send CMDONE i get "OK" reply back from instrument.For this i wrote the data onto the port and read "OK" directly instead of using serailback function.
Then i will send CMDTWO,here i just write the data on the port and set blntwo=TRUE;.I will be getting data constantly from instrument,i will read this data using callback function ,then send this data to client application through Fire function.
Then i will send CMDTHREE,i am setting blntow=FALSE,here i want to suspend the thread,so that reading is not done by Serialcall function,Instead i want to read the data directly here when i send CMDTHREE.But this is not happening..May be bec of synchronization problem..how to solve it..?If i don`t suspend the thread application is crashing..
Thanks in before
James
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Without code it's tough to know what's going on. I'd be worried about suspending the thread
from another thread because you don't know where the thread is going to stop.
Again, I don't know your code, but maybe a notifying the thread (through a simple bool flag even)
to ignore data until a reply from CMDTHREE is received or something along those lines.
If the thread is receiving event-driven data and you suspend it then how do you know you're in
a correct state to read data directly?
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Hi,
Thanks for the reply,as u have asked for the code,i have downloaded a project from codeproject
http://www.codeproject.com/com/CompCateg2.asp[^]
In this i am using only serialport communication module,to existing code i have added my three functions CMDONE,CMDTWO,CMDTHREE,and if(blnTwo==TRUE) in serial callback function.please ask me any more information is required,bec i have to fix this problem.
Thanks in before
James
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RockyJames wrote: i have downloaded a project from codeproject
You can ask Mr. Zak Howland (the author) yourself. There's a place for messages at the bottom
of the article.
Mark
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I have a program that uses at least 50 calls to the CString::Format function. The problem comes when I change from Debug to Release mode and try to compile. In Release mode, the function expects a 'const wchar_t *' and in Debug a 'const char *'. I know that you can use the 'L' macro to make a literal string a 'const wchar_t *', but then it doesn't work when I switch back to Debug.
Is there a way to get around this or do I just have to save my release compilation until the very end and add the 'L' macro to all of these functions? Also, does anybody know the reason Microsoft did this?
Thanks,
Dustin
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Could it be that the release build is unicode, and debug build isn't?
Alcohol. The cause of, and the solution to, all of life's problems - Homer Simpson
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Good call. That fixed it. I didn't even think about checking that. You're the man.
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Thanks.
Alcohol. The cause of, and the solution to, all of life's problems - Homer Simpson
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Debug vs Release or Debug vs RELEASE UNICODE?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
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I love this board. 2 helpful answers in under 10 minutes.
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For all string literals in your code, you should use the _T("xxx") macro.
For unicode builds, _T() is replaced by 'L', whereas for non-unicode builds it gets replaced by white space. So, literals end up correctly defined automatically, regardless of the build.
Mike
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This is a shamed question of VC++ and MFC newbee.
I have Dialog box with it's CDialog derived class, which contains some controls and especially edit controls. The variables controls are int type.
When i input a value in the edit control and I close the dialog by pushing Ok buton, the value is lost when I open again the Dialog.
How can I prevent my data to be cleared?
many thnks for your help.
PS: sorry for my poor English, it is also newbee  )
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before you call DoModal on the dialog, set the member variables (the ones that are tied to the controls) to the values you want the controls to show.
99% of all the dialogs i've ever done end up being launched like this:
CMyDialog foo;
foo.m_intMember1 = someValue1;
foo.m_intMember2 = someValue2;
if (foo.DoModal()==IDOK)
{
someValue1 = foo.m_intMember1;
someValue2 = foo.m_intMember2;
}
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Many thanks,
It works well.
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Do you want to save these values for next time that you run your program ?
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You can save values on registry and when you want to run your program read of registry,also you can find examples on codeproject
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I hope you find it early
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Hi everybody
I have to launch iexplore.exe from a win32 appl developed into powerbuilder
environment. Anyone can suggest me a SDK to do this? I would like not to
hard-code iexplore pathname and launch through standard CreateProcess.
Due to my IDE, I cannot use COM or other microsoft component, only base SDK.
Also, if there are no API's to do this, anyone knows another mechanism (for
example a registry key for pathname)? All this to allow my appl run on any
windows installation, independently from version (2000, XP) and language
Thank you very much to everyone
FPT95
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If you want to launch iexplore.exe, regardless of whether it is the default browser or not, you'll need to use an absolute path, or resolve the CLSID {FBF23B42-E3F0-101B-8488-00AA003E56F8} to IE's path. You could also look for the HKCR\Applications\iexplore.exe\shell\open\command key.
If, however, you just want to launch the default browser, call AssocQueryString() before calling CreateProcess().
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
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