C / C++ / MFC

Re: ReportEvent [modified]

25-Jun-07 2:16

Hi,
Iam not very familiar to this. But I found in MSDN that for event id , categories you need to register message files EventMessageFile, CategoryMessageFile, and ParameterMessageFile to the registry.
Please search the msdn for messages files.

Since you passed 0 in the category it displayed none.
Best Regards
Raj

Re: ReportEvent

Yashusid25-Jun-07 2:49

Yashusid

25-Jun-07 2:49

Yes i have created a message dll.

and i have given it as

MessageId=1
Facility=FACILITY_CHECK
SymbolicName=CATEGORY1
Language=English
Category 1

in mc file.

during call to ReportEvent,

if i give

bRet = ::ReportEvent( m_hEventSource,
wEventType,
CATEGORY1, //category
INF_DUMMY,
psidCurrUser,
1,
0,
(LPCTSTR*)&lptszMessage,
NULL
);

category column is not displaying with what text i have given for CATEGORY1.

it displaus as "Devices" in category column....

Rajkumar R25-Jun-07 3:16

Implemeting C++ code into a C project

25-Jun-07 3:16

Have you correctly set the registry keys for the event source, particularly the "CategoryMessageFile" and its count.

And also if you define all the event, category and parameter in a single file the category must be the first.

-- modified at 9:21 Monday 25th June, 2007

ForNow25-Jun-07 0:56

25-Jun-07 0:56

Does any know how to implement C++ code into a C project

meaning I have a project that is C code and I code ( CLass of the code I trying to implement)

When I have a pointer to that class in a C stucture I get compile errors (maybe becuase the programs are .c extensions as opposed to .cpp)

I am using Visual Studio for the build

I am afraid If I change the extension of the programs to C++ .cpp It will screw other things up

is these anyway to "connect" these 2 piecies to code

Maybe write a compiler diretive e.g. extern CPLUSPLUS (just a guess)

Thankx

Rajkumar R25-Jun-07 1:28

25-Jun-07 1:28

Hi,
Change the "compile as" option /TP this will compile your .C, .cpp file as C++ code.
That is change to CPP project.

ForNow25-Jun-07 12:15

25-Jun-07 12:15

This is a makefile project C code from what I understand paramter passing is different in C++

Zeolite25-Jun-07 1:41

Zeolite

25-Jun-07 1:41

Just out of interest, how do you think your code might get screwed up if you change the file extension(s) to .cpp?

Cheers,
Dan

ForNow25-Jun-07 12:04

25-Jun-07 12:04

I think paramter passing is different for a C++ prog

ForNow25-Jun-07 12:45

25-Jun-07 12:45

I am basically trying to implemnt C++/C# code into a C makefile project

one project C makefile one C++/C# project into one soulution

Orhun Birsoy25-Jun-07 5:33

Orhun Birsoy

25-Jun-07 5:33

You should be including a header that that C structure is defined. You should wrap that header in extern "C", ie

extern "C" <br />
{ <br />
    struct MyCStruct { };<br />
}<br />

Or if you can not change that header you could include that header wrapped in extern "C" as well, from the C++ side. ie

<br />
extern "C"<br />
{<br />
    #include "MyCStruct.h"<br />
}<br />

Orhun Birsoy

ForNow25-Jun-07 12:28

25-Jun-07 12:28

ok let me ask you then

The C code is a makefile project The Main Anchor point is The "C" struct which I will define
as you indicated as extern "C" in my C++ or C# project

The in the C code generated by the make file project I could sat if (a == "C++") myclass

Where myclass is the the Class from my C++ or C# project

I will create one soultion

does this sound do able

Orhun Birsoy25-Jun-07 12:52

Orhun Birsoy

25-Jun-07 12:52

I don't think I understand what you are asking, but this site might help you more How to mix C and C++

Orhun Birsoy

ForNow25-Jun-07 23:39

need help with port reading!

25-Jun-07 23:39

I am trying to implement C++ oode into a C makefile project

Leo_133125-Jun-07 0:31

Leo_1331

25-Jun-07 0:31

Hello!
below is my code for sending AT command to the port to the device ...
i m suppose to get a response "OK" after sending "AT" to through the port but the result i get are all symbols ... can anyone help me with this ???
Thanks alot!!!

HANDLE m_hCom;
DCB m_dcb;
COMMTIMEOUTS m_CommTimeouts;

DWORD iBytesWritten = 0;
DWORD iBytesRead = 0;
char sBuffer[5];

m_hCom =CreateFile("COM7:",
GENERIC_READ | GENERIC_WRITE,
0, // exclusive access
NULL, // no security
OPEN_EXISTING,
0, // no overlapped I/O
NULL); // null template

SetupComm(m_hCom, 128, 128); // set buffer sizes

GetCommState(m_hCom, &m_dcb);

m_dcb.BaudRate = CBR_9600;
m_dcb.ByteSize = 8;
m_dcb.Parity = NOPARITY;
m_dcb.StopBits = ONESTOPBIT;
m_dcb.fAbortOnError = TRUE;
m_dcb.fBinary = TRUE;

SetCommState(m_hCom, &m_dcb);
GetCommTimeouts (m_hCom, &m_CommTimeouts);

m_CommTimeouts.ReadIntervalTimeout = 0;
m_CommTimeouts.ReadTotalTimeoutConstant = 0;
m_CommTimeouts.ReadTotalTimeoutMultiplier = 0;
m_CommTimeouts.WriteTotalTimeoutConstant = 0;
m_CommTimeouts.WriteTotalTimeoutMultiplier = 0;
SetCommTimeouts (m_hCom, &m_CommTimeouts);

WriteFile(m_hCom,"AT\r",2,&iBytesWritten,NULL);

ReadFile(m_hCom, &sBuffer, 1, &iBytesRead, NULL);

printf("\n%s",sBuffer);

CloseHandle(m_hCom);

CPallini25-Jun-07 0:42

CPallini

25-Jun-07 0:42

A few remarks:
(1) Why are you setting to zero all the reading timeout values?
(2) In WriteFile you're not sending the carriage return (\r), since you specified only two bytes to send.
(3) You are not checking neither the ReadFile return value nor how many bytes you obtained (i.e. the iBytesReas value, of course you have to check this only when ReadFile returns a nonzero value).

Hope that helps
Smile | :)

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.

Roger Stoltz25-Jun-07 0:49

Roger Stoltz

25-Jun-07 0:49

I'm not sure if "COM7:" is a valid port name. You have omitted all error checking and assume everything works perfectly. Suspicious | :suss:

You don't have a clue whether the could be opened or not.
You should at least verify that m_hCom doesn't equal INVALID_HANDLE_VALUE after the call to ::CreateFile().

You have set up the timeouts so that there won't be any timeout, ::ReadFile() will return immediately with whatever is found in the FIFO, if any. In practice; your device would have to send the response before you sent the request in order for the code you've written to get the response.

Have a look at this article[^]. It will show you how to implement serial communication.

Post again if anything is unclear after reading the article.

"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown

Leo_133126-Jun-07 7:31

Leo_1331

26-Jun-07 7:31

OK Thanks alot!!!

An error occur when accessing the file

flippydeflippydebop26-Jun-07 12:47

flippydeflippydebop

26-Jun-07 12:47

If your doing any kind of port programming then your deffinatly going to want to check out the CSerial utility class.

http://www.codeproject.com/system/serial.asp

Its without a doubt, one kick ass class library. The sample includes C++ console, and mfc samples. Check it out pronto!

Y_Kaushik25-Jun-07 0:27

Y_Kaushik

25-Jun-07 0:27

Hello Guru's

I am writing below code for copy the content of buffer to file

CString strLine = "";
CString buffer = "";
CStdioFile fileObj,filewrite;
CString fname;

fileObj.Open(str, CFile::modeRead | CFile::shareDenyWrite);
fname = fileObj.GetFileName();

while(fileObj.ReadString(strLine))
{
fileObj.ReadString(strLine);
buffer += strLine + "\r\n";
}
fileObj.Close();
// MessageBox(buffer);
SetDlgItemText(IDC_EDIT3,buffer);

/*//////////////////////Copying file to another folder//////////////////////////*/

fileObj.Open("c:\\UserFolder\\" + fname + ".txt",CFile::modeCreate,NULL);

///////////////////////////////////////////////////

filewrite.Open(str,CFile::modeCreate|CFile::modeWrite);

strLine.Empty();

while(filewrite.ReadString(strLine))
{
filewrite.WriteString(strLine);
fname += strLine + "\r\n";
}
filewrite.Close();
MessageBox(fname);

I am understand where i am wrong .
The above code work correctly up to

CString strLine = "";
CString buffer = "";
CStdioFile fileObj,filewrite;
CString fname;

fileObj.Open(str, CFile::modeRead | CFile::shareDenyWrite);
fname = fileObj.GetFileName();

while(fileObj.ReadString(strLine))
{
fileObj.ReadString(strLine);
buffer += strLine + "\r\n";
}
fileObj.Close();
// MessageBox(buffer);
SetDlgItemText(IDC_EDIT3,buffer);

/*//////////////////////Copying file to another folder//////////////////////////*/

fileObj.Open("c:\\UserFolder\\" + fname + ".txt",CFile::modeCreate,NULL);

and i can create an 0 byte .txt file using this .But when i try to copy content on buffer to file . I am become fail I think this code of line is wrong .

filewrite.Open(str,CFile::modeCreate|CFile::modeWrite);

strLine.Empty();

while(filewrite.ReadString(strLine))
{
filewrite.WriteString(strLine);
fname += strLine + "\r\n";
}
filewrite.Close();
MessageBox(fname);

if any one in the world tell me how can we solve this problem.

Regard's
Kaushik

Hamid_RT25-Jun-07 0:53

Hamid_RT

25-Jun-07 0:53

You open file on the write mode but in this loop you want to read of that?

filewrite.Open(str,CFile::modeCreate|CFile::modeWrite);
strLine.Empty();
while(filewrite.ReadString(strLine))

From the MSDN

CFile::modeRead Opens the file for reading only.
CFile::modeReadWrite Opens the file for reading and writing.
CFile::modeWrite Opens the file for writing only.

WhiteSky

Y_Kaushik25-Jun-07 0:58

Y_Kaushik

25-Jun-07 0:58

if i use the mode like

filewrite.Open(str,CFile::modeCreate | CFile::modeRead);

again it can not write file

Regard's
Kaushik

Y_Kaushik25-Jun-07 1:10

Y_Kaushik

25-Jun-07 1:10

in the read write mode

filewrite.Open(str,CFile::modeReadWrite);

it will return only name of file at last.(in messageBox)

Regard's
Kaushik

Rajkumar R25-Jun-07 1:16