C / C++ / MFC

Re: Need to get Command line argument and add to this simple function

6-Dec-05 3:59

andreas_sweden wrote:
I need to replace the 999999999 with the first command line argument (paramstr(1) Can someone help me with this!?

Does your program have a main() function?

"Take only what you need and leave the land as you found it." - Native American Proverb

andreas_sweden6-Dec-05 4:09

Re: Need to get Command line argument and add to this simple function

6-Dec-05 4:09

Hi, yes!

Srry, didn't mention.. but here it comes!

int main(int argc, char* argv[])
{
TCHAR DeviceName[1024];
HANDLE hDevice = NULL;
DWORD cbWritten;
DWORD cbRead;
BYTE szBuffer[1024];
DWORD BytesToWrite;
StringType SlumpNum;

// This function enumerates the printer class devices and detects the appropriate
// device

CCmdLine cmdLine;

EnumeratePrinter(( LPGUID) &GUID_CLASS_ZEBRA_USB,
DeviceName,
PRINTERNAME);
hDevice = CreateFile(DeviceName,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
0,
NULL);
// Read Ribbon

BytesToWrite = sprintf( (char *)szBuffer,
"\033!RIBBON\r");
WriteFile( hDevice,
szBuffer,
BytesToWrite,
&cbWritten,
NULL);

// To read you need to send "\033E 2\r"

BytesToWrite = sprintf( (char *)szBuffer,
"\033E 2\r");
WriteFile( hDevice,
szBuffer,
BytesToWrite,
&cbWritten,
NULL);

ReadFile( hDevice,
szBuffer,
1024,
&cbRead,
NULL );
// End of ribbon read

// Start Encode Data
// Fill in the data in firmware buffer
// First track ZEBRA1 command: \033&B 1 ZEBRA1\r
// Second track Age command: \033&B 2 28\r
// Third track YOB command: \033&B 3 1975\r
// Encode all three track
// command: \033E*\r

BytesToWrite = sprintf( (char *)szBuffer,
"\033F\r\033B 512 600 4 1 2 3 150 1 999999999999\r\033I\r");
WriteFile( hDevice,
szBuffer,
BytesToWrite,
&cbWritten,
NULL);

And you can see the 999999999999 that i would like to insert the first command line parameter instead...

Regards

Andreas

David Crow6-Dec-05 4:11

Re: Need to get Command line argument and add to this simple function

6-Dec-05 4:11

andreas_sweden wrote:
int main(int argc, char* argv[])

Command-line arguments are supplied in the argv (argument vector) variable.

"Take only what you need and leave the land as you found it." - Native American Proverb

andreas_sweden6-Dec-05 4:16

Re: Need to get Command line argument and add to this simple function

6-Dec-05 4:16

Hi again, thankyour for answering so quickly.

May i ask you to be a little more specefic.. since i no 1% of c++ Frown | :(

. well, not really but almost..

I havn't the got the clue how i must do to get that inserted at that position where i needed it..

If you had time to help my it would be very kind!

Thnakyou !

/Andreas

David Crow6-Dec-05 4:43

Re: Need to get Command line argument and add to this simple function

6-Dec-05 4:43

andreas_sweden wrote:
since i no 1% of c++

Actually it has nothing to do with C++. See here and here for more.

"Take only what you need and leave the land as you found it." - Native American Proverb

andreas_sweden6-Dec-05 4:49

Re: Need to get Command line argument and add to this simple function

6-Dec-05 4:49

Okey, so one step further Smile | :)

.. guess i used the argv correct
same as ParamStr in Delphi and so on.

Ok, now i'm having trouble to inserting that string into the function.

Like this, wich doesn't work:

Argument = argv[1];

BytesToWrite = sprintf( (char *)szBuffer,
"\033F\r\033B 512 600 4 1 2 3 150 1 "&Argument&"\r\033I\r");

Thankyou!

/Andreas

David Crow6-Dec-05 4:57

Re: Need to get Command line argument and add to this simple function

6-Dec-05 4:57

andreas_sweden wrote:
BytesToWrite = sprintf( (char *)szBuffer,
"\033F\r\033B 512 600 4 1 2 3 150 1 "&Argument&"\r\033I\r");

Try:

sprintf(szBuffer, "\033F\r\033B 512 600 4 1 2 3 150 1 %s\r\033I\r", argv[1]);

"Take only what you need and leave the land as you found it." - Native American Proverb

andreas_sweden6-Dec-05 6:07

6-Dec-05 6:07

Thankyou thankyou * 10000

Very much!

Everything works just fine!!!

Mucho Gracias!

/Andreas

Overloading << operator?

Cristoff6-Dec-05 2:03

Re: Overloading &lt;&lt; operator?

6-Dec-05 2:03

I've tried to overload the << oprator, so that I can output to a file and to a console at the same time but I have no success. I cannot find a solution in Internet and I get the error message: ambigous overload of operator <<...

Any ideas what to do?

I want to be able to use this operator to output something like:
logfile << "data";
but still to be able to do this:
cout << "out";

Thank you!

toxcct6-Dec-05 2:37

Re: Overloading &amp;lt;&amp;lt; operator?

6-Dec-05 2:37

i'm not sure i understand.

you want - in the same << operation - that your datas are written both in a file and in a console ?

there's no need to overload such an operator for this.

you write a function say writeOutput(data_to_write) in which you perform a cout << data and a file << data where file is an ifstream opened with the file to write...

if not, please explain more clearly...

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20]

Cristoff6-Dec-05 2:53

Re: Overloading &amp;amp;lt;&amp;amp;lt; operator?

6-Dec-05 2:53

Yes you are right but I want to be able to use variable number of arguments but I don't want to use va_list, etc... C functions.

toxcct6-Dec-05 2:55

Re: Overloading &amp;amp;amp;lt;&amp;amp;amp;lt; operator?

6-Dec-05 2:55

Cristoff wrote:
but I don't want to use va_list, etc... C functions

however, it is the way to do it...

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20]

Cristoff6-Dec-05 6:08

Re: Overloading &amp;amp;amp;amp;lt;&amp;amp;amp;amp;lt; operator?

6-Dec-05 6:08

I have done it that way but according to samples I've found in Internet, it has to be possible to do it with overloading << but I cannot get it to compile.

toxcct6-Dec-05 6:13

Re: Overloading &amp;amp;amp;amp;amp;lt;&amp;amp;amp;amp;amp;lt; operator?

6-Dec-05 6:13

Cristoff wrote:
I've found in Internet

can i know this place ?

Cristoff wrote:
but I cannot get it to compile.

any chance to have a look at your "not-compiling" code (i don't want it all, i need only a piece of code to understand how you try to achieve the point we're talking about) ...?

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20]

Cristoff6-Dec-05 11:16

Re: Overloading &amp;amp;lt;&amp;amp;lt; operator?

6-Dec-05 11:16

Thank you very much for wanting to help me. The problem is that I've deleted it yesterday and I cannot find it now, although I'm searching it yet for my own needs.
If I find it, I'll post it later.

Thank you!

S. Senthil Kumar6-Dec-05 4:06

S. Senthil Kumar

6-Dec-05 4:06

I don't understand how varargs fits into overloading << ?

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

[Message Deleted]

Eytukan6-Dec-05 4:46

Eytukan

6-Dec-05 4:46

[Message Deleted]

Re: Overloading &amp;amp;lt;&amp;amp;lt; operator?

toxcct6-Dec-05 5:43

Re: Overloading &lt;&lt; operator?Correct way

6-Dec-05 5:43

VivekuniQ wrote:
is it really possible to overload a ">>" ??

this is not what we're talking about, but to answer your prompt question, yes it is !!

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20]

Amol Ravatale6-Dec-05 20:15

Amol Ravatale

6-Dec-05 20:15

#include "stdafx.h"
#include <string.h>
#include <iomanip.h>
#include <fstream.h>
#include <iostream.h>
#include <stdio.h>
#include <malloc.h>
#include <string.h>
#include <stdlib.h>

class Employer
{
friend ostream &operator <<(ostream &Obj, Employer &EmpObj) ;
private :
public:
Employer()
{
//strcpy(m_name,"Amol Ravatale");
}

~Employer()
{
}
char m_name[20];

};

ostream &operator <<(ostream &Obj, Employer &EmpObj)
{
Obj<<empobj.m_name ;
="" return="" obj="" ;
}

istream="" &operator="">>(istream &obj, Employer &EmpObj)
{
char str[30];
obj>>str;
strcpy(EmpObj.m_name ,str);

return obj;
}

int main(int argc, char**argv)
{
Employer emp;
ofstream man("amol.txt") ; //creates a text file in application path
strcpy(emp.m_name,"amol");
man<<emp; writes="" data="" to="" file
="" man.close()="" ;
="" cout<<emp.m_name="" ;="" shows="" at="" conssole

="" man="">>emp;
//cout<

Re: Overloading &amp;lt;&amp;lt; operator?Correct way

Amol Ravatale6-Dec-05 21:27

Amol Ravatale

6-Dec-05 21:27

sorry , include these files
#include "stdafx.h"
#include <string.h>
#include <iomanip.h>
#include <fstream.h>
#include <iostream.h>
#include <stdio.h>
#include <malloc.h>
#include <string.h>
#include <stdlib.h>

Re: Overloading &lt;&lt; operator?

Cristoff10-Dec-05 8:36

Re: Overloading &amp;lt;&amp;lt; operator?

10-Dec-05 8:36

Here is basically what I'm trying to do:

<br />
#include <iostream><br />
#include <fstream><br />
<br />
<br />
    // A singleton data logging class<br />
    class Logger<br />
    {<br />
    public:<br />
        // Since this class is a singleton, here is a static method to get a<br />
        // pointer to it.<br />
        static Logger &GetInstance()<br />
        {<br />
            static Logger logger;<br />
            return logger;<br />
        };<br />
<br />
        void Initialize()<br />
        {<br />
            if (!Log.is_open())<br />
                Log.open("logfile.txt");<br />
        };<br />
<br />
        void Shutdown()<br />
        {<br />
            if (Log.is_open())<br />
            {<br />
                Log.close();<br />
            }<br />
        };<br />
<br />
<br />
<br />
    protected:<br />
        Logger()<br />
        {<br />
        };<br />
        std::ofstream Log;<br />
<br />
    public:<br />
        template <typename T><br />
        friend std::ostream & operator << ( std::ostream & os, T data );<br />
    };<br />
<br />
template <typename T><br />
std::ostream & operator << ( std::ostream & os, T data )<br />
{<br />
  os << data;<br />
  std::cout << data;<br />
  return os;<br />
};<br />
<br />
int main()<br />
{<br />
	std::cout << "Hello world!" << std::endl;<br />
	Logger::GetInstance();<br />
	Logger::GetInstance().Initialize();<br />
	Logger::GetInstance()<< "ciao" << std::endl;<br />
	std::cout << "Good nigght world!" << std::endl;<br />
	return 0;<br />
}<br />
<br />

...but unfortunately I don't know what I'm doing.

Cristoff10-Dec-05 8:38