printing the customized data through printer in vc++ 6.0 dialog based.

[User 13192079]

I am trying to print some data from my application.It is printing the data but the page is not coming out of the printer.Please help me on this.

HANDLE hPrinter;
DOC_INFO_1 DocInfo;
DWORD dwJob;
DWORD dwBytesWritten;

	char \*lpData="welcome to delopt";


    
	char \*szPrinterName="CUSTOM TG2460-H";
    if( ! OpenPrinter( szPrinterName, &hPrinter, NULL ) )
      return ;
    
    DocInfo.pDocName = "My Document";
    DocInfo.pOutputFile = NULL;
    DocInfo.pDatatype = "RAW";
    
    if( (dwJob = StartDocPrinter( hPrinter, 1, (unsigned char\*)(LPSTR)&DocInfo )) == 0 )
    {
      ClosePrinter( hPrinter );
      return;
    }
    
    if( ! StartPagePrinter( hPrinter ) )
    {
      EndDocPrinter( hPrinter );
      ClosePrinter( hPrinter );
      return;
    }
    
	int dwCount=19;
    if( !WritePrinter( hPrinter, lpData, dwCount, &dwBytesWritten ) )
    {
      EndPagePrinter( hPrinter );
      EndDocPrinter( hPrinter );
      ClosePrinter( hPrinter );
      return;
    }

    .
	
    if( ! EndPagePrinter( hPrinter ) )
    {
      EndDocPrinter( hPrinter );
      ClosePrinter( hPrinter );
      return;
   
	}
    
    if( ! EndDocPrinter( hPrinter ) )
    {
      ClosePrinter( hPrinter );
      return;
    }
    
    
   
    if( dwBytesWritten != dwCount )
      return;
	ClosePrinter( hPrinter );
    return;

this is for dialog based application.

[Lost User]

You do not call EndDocPrinter function (Windows)[^] to terminate the job.

[rahul1995]

I have commented that but still the same. i will explain it once again. see when i am executing the come then after clicking on the button it is printing the message but print is not coming out of the printer. It is printing the message on the paper but the paper is not coming out of printer it is just printing the text and stopping at that particular point only.

[Lost User]

You need to use your debugger to step through the code and check exactly which of the spooler functions get called, and in which order.

[rahul1995]

there is only one spooler function is there in the code right n if i am wrong please explain it as for the first time i am doing that i dnt have much idea about that.

[Lost User]

Sorry, I have not used the spooler functions before so cannot offer any further suggestions. You could try a Google search to see if anyone has written a tutorial on the subject.

[Lost User]

See the answers at Windows: How to tell printer to issue a FormFeed during printing? - Stack Overflow[^].

[Lost User]

I just tried this on my local printer using TEXT mode rather than RAW and it works correctly.

[rahul1995]

Thank you its working just one more help can u tell me how i can format the page which i want to print.for example: name : XYZ age : 19 . . . etc.

[rahul1995]

right now i it printing like name : xyz age : 19 but i want like this name : xyz age : 19 how do i format that

[Lost User]

You need to put the newline characters at the end of each string thus:

"This is line 1\r\n"
"This is line 2\r\n"
etc.

However, you would get better results by doing proper GDI based printing where you can format your pages properly.

[rahul1995]

what i should do for formatting the page like font size,font type , print quality and how many character should be printed in that particular line.

[Lost User]

See GDI Print API (Windows)[^].

[rahul1995]

who i can improve the print quality because the print which it is giving out is very light.

[Lost User]

Like I already told you, you will have to use proper GDI printing. Alternatively, if you know postscript and your printer supports it (which it should), you can use that and send as raw data.

[rahul1995]

i have checked that but i have not god anything regarding the formatting of text and increasing the pixel density.

[Lost User]

You need to use the Device Context GDI/GDI+ functions as described in Legacy Graphics (Windows)[^].