General Example Reading Barcode - C++ (Unmanaged)
BarCode Reader SDK sample in C++ (Unmanaged) demonstrating ‘General Example Reading Barcode’
CommonExample.cpp
#include "stdafx.h"
#import "c:\\Program Files\\Bytescout BarCode Reader SDK\\net2.00\\Bytescout.BarCodeReader.tlb" raw_interfaces_only
using namespace Bytescout_BarCodeReader;
int _tmain(int argc, _TCHAR* argv[])
{
// Initialize COM.
HRESULT hr = CoInitialize(NULL);
// Create the interface pointer.
IReaderPtr pIReader(__uuidof(Reader));
// set the registration name and key
_bstr_t registrationName(L"DEMO");
pIReader->put_RegistrationName(registrationName);
_bstr_t registrationKey(L"DEMO");
pIReader->put_RegistrationKey(registrationKey);
// Set barcode type to find
_BarcodeTypeSelectorPtr pBarcodeTypesToFind;
pIReader->get_BarcodeTypesToFind(&pBarcodeTypesToFind);
pBarcodeTypesToFind->put_GS1DataBarExpanded(VARIANT_TRUE);
// Get full path of sample barcode image file
WCHAR file[MAX_PATH];
::GetFullPathName(L"GS1DataBarExpanded.png", MAX_PATH, file, NULL);
// Read barcode from file
hr = pIReader->ReadFromFile(_bstr_t(file));
// check if file was not found
if (hr == E_FAIL)
{
wprintf(L"File was not found: %s\n", file);
}
else
{
// Get found barcode count
long count;
pIReader->get_FoundCount(&count);
// Get found barcode information
for (int i = 0; i < count; i++)
{
SymbologyType type;
hr = pIReader->GetFoundBarcodeType(i, &type);
wprintf(L"Barcode type: %d\n", type);
float confidence;
hr = pIReader->GetFoundBarcodeConfidence(i, &confidence);
wprintf(L"Barcode confidence: %f\n", confidence);
BSTR bstrValue;
hr = pIReader->GetFoundBarcodeValue(i, &bstrValue);
wprintf(L"Barcode value: %s\n", bstrValue);
::SysFreeString(bstrValue);
wprintf(L"\n");
}
if (count == 0)
{
wprintf(L"No barcodes found.");
}
}
// Uninitialize COM.
CoUninitialize();
// Wait until user press any key
system("pause");
return 0;
}
stdafx.cpp
// stdafx.cpp : source file that includes just the standard includes
// BarcodeReaderExample.pch will be the pre-compiled header
// stdafx.obj will contain the pre-compiled type information
#include "stdafx.h"
// TODO: reference any additional headers you need in STDAFX.H
// and not in this file
stdafx.h
// stdafx.h : include file for standard system include files,
// or project specific include files that are used frequently, but
// are changed infrequently
//
#pragma once
#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#include <stdio.h>
#include <tchar.h>