C++ printer don't want to print - c++

Question

I have mistakes in my code. My printer which name is "XP-58" does not print text from C++ program.
But when I run print from notepat, it works correctrly.
My C++ code
int _tmain(int argc, _TCHAR* argv[])
{
LPTSTR printerName = (LPTSTR)_T("XP-58");
CString str = "la-la-la";
LPBYTE pByte = new BYTE[str.GetLength() + 1];
memcpy(pByte, (VOID*)LPCTSTR(str), str.GetLength());
DWORD count = 7;
BOOL result = RawDataToPrinter(printerName, pByte, count);
std::cout << result << std::endl;
system("pause");
return 0;
}
I using function from here https://msdn.microsoft.com/en-us/library/windows/desktop/dd162959(v=vs.85).aspx
As you can see I have result after program end "std::cout << result << std::endl;" and result always shows "1".
Which is the problem?
May be I need set specify port for printer? My printer connected to USB002 port.
And when I start printing from notepad I see this port in "Print queue manager", but when task added from my program I don't see any port in manager.
Please help)
Full code
#include "stdafx.h"
#include <Windows.h>
#include <Winspool.h>
#include <CommDlg.h>
#include <math.h>
#include <atlstr.h>
#include <iostream>
BOOL RawDataToPrinter(LPTSTR szPrinterName, LPBYTE lpData, DWORD dwCount)
{
BOOL bStatus = FALSE;
HANDLE hPrinter = NULL;
DOC_INFO_1 DocInfo;
DWORD dwJob = 0L;
DWORD dwBytesWritten = 0L;
// Open a handle to the printer.
bStatus = OpenPrinter( szPrinterName, &hPrinter, NULL );
if (bStatus) {
// Fill in the structure with info about this "document."
DocInfo.pDocName = (LPTSTR)_T("chargebox barcode check");
DocInfo.pOutputFile = NULL;
DocInfo.pDatatype = (LPTSTR)_T("RAW");
// Inform the spooler the document is beginning.
dwJob = StartDocPrinter( hPrinter, 1, (LPBYTE)&DocInfo );
if (dwJob > 0) {
// Start a page.
bStatus = StartPagePrinter( hPrinter );
if (bStatus) {
// Send the data to the printer.
bStatus = WritePrinter( hPrinter, lpData, dwCount, &dwBytesWritten);
EndPagePrinter (hPrinter);
}
// Inform the spooler that the document is ending.
EndDocPrinter( hPrinter );
}
// Close the printer handle.
ClosePrinter( hPrinter );
}
// Check to see if correct number of bytes were written.
if (!bStatus || (dwBytesWritten != dwCount)) {
bStatus = FALSE;
} else {
bStatus = TRUE;
}
return bStatus;
}
int _tmain(int argc, _TCHAR* argv[])
{
LPTSTR printerName = (LPTSTR)_T("XP-58");
CStringW str = L"unicode";
int bytelen = 2 * str.GetLength();
LPBYTE pByte = new BYTE[bytelen];
memcpy(pByte, str, bytelen);
DWORD count = bytelen;
BOOL result = RawDataToPrinter(printerName, pByte, count);
std::cout << GetLastError() << std::endl;
std::cout << result << std::endl;
system("pause");
return(0);
}

Answer 1

The printer doesn't know that you're finished sending it everything, so it doesn't print.
To finish a line, you need to add the characters "\r\n" to the string.
When you're finished with a page, add "\f" to the string.