ByteScout Barcode Suite – C++ – Get barcode to memory buffer with barcode sdk

Home
/
Articles
/
ByteScout Barcode Suite – C++ – Get barcode to memory buffer with barcode sdk

printable version:
ByteScout-Barcode-Suite-C-plus-plus-Get-barcode-to-memory-buffer-with-barcode-sdk.pdf

How to get barcode to memory buffer with barcode sdk in C++ with ByteScout Barcode Suite

If you want to learn more then this tutorial will show how to get barcode to memory buffer with barcode sdk in C++

Sample source code below will display you how to manage a complex task like get barcode to memory buffer with barcode sdk in C++. ByteScout Barcode Suite is the set that includes three different SDK products to generate barcodes, read barcodes and read and write spreadsheets: Barcode SDK, Barcode Reader SDK and Spreadsheet SDK. It can be applied to get barcode to memory buffer with barcode sdk using C++.

The following code snippet for ByteScout Barcode Suite works best when you need to quickly get barcode to memory buffer with barcode sdk in your C++ application. IF you want to implement the functionality, just copy and paste this code for C++ below into your code editor with your app, compile and run your application. Further improvement of the code will make it more robust.

Trial version of ByteScout Barcode Suite is available for free. Source code samples are included to help you with your C++ app.

On-demand (REST Web API) version:
Web API (on-demand version)

On-premise offline SDK for Windows:
60 Day Free Trial (on-premise)

BarcodeGenerationExample.cpp

      #include "stdafx.h"
#include <atlsafe.h> // For ATL::CComSafeArray

#import "Bytescout.BarCode.tlb" raw_interfaces_only

using namespace Bytescout_BarCode;


int _tmain(int argc, _TCHAR* argv[])
{
	// Initialize COM.
	HRESULT hr = CoInitialize(NULL);

	// Create the interface pointer.
	IBarcodePtr pIBarcode(__uuidof(Barcode));

	// set the registration name and key
	BSTR regname = ::SysAllocString(L"DEMO");
	pIBarcode->put_RegistrationName(regname);
	::SysFreeString(regname);

	BSTR regkey = ::SysAllocString(L"DEMO");
	pIBarcode->put_RegistrationKey(regkey);
	::SysFreeString(regkey);

	// Set barcode type (symbology)
	pIBarcode->put_Symbology(SymbologyType_Code128);

	// Set barcode value
	BSTR value = ::SysAllocString(L"Abc123");
	pIBarcode->put_Value(value);
	::SysFreeString(value);

	// Get barcode image bytes.
	SAFEARRAY* pSafeArray;
	pIBarcode->GetImageBytesPNG(&pSafeArray);

	// Convert SAFEARRAY to byte array
	CComSafeArray<BYTE> safeArray;
	safeArray.Attach(pSafeArray);
	UINT count = safeArray.GetCount();
	BYTE* bytes = new BYTE[count];
	for (ULONG i = 0; i < count; i++)
		bytes[i] = safeArray.GetAt(i);

	// Check result by saving image bytes to file
	FILE* pFile;
	fopen_s(&pFile, "result.png", "wb");
	fwrite(bytes, 1, count, pFile);
	fclose(pFile);

	delete[] bytes;
	pIBarcode->Release();

	// Uninitialize COM.
	CoUninitialize();

	return 0;
}

ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit ByteScout Barcode Suite Home Page

Explore ByteScout Barcode Suite Documentation

Explore Samples

Sign Up for ByteScout Barcode Suite Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

Explore Web API Samples

stdafx.cpp

      // stdafx.cpp : source file that includes just the standard includes
// BarcodeGenerationExample.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

ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit ByteScout Barcode Suite Home Page

Explore ByteScout Barcode Suite Documentation

Explore Samples

Sign Up for ByteScout Barcode Suite Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

Explore Web API Samples

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

#include "targetver.h"

#include <stdio.h>
#include <tchar.h>



// TODO: reference additional headers your program requires here

ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit ByteScout Barcode Suite Home Page

Explore ByteScout Barcode Suite Documentation

Explore Samples

Sign Up for ByteScout Barcode Suite Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

Explore Web API Samples

targetver.h

      #pragma once

// Including SDKDDKVer.h defines the highest available Windows platform.

// If you wish to build your application for a previous Windows platform, include WinSDKVer.h and
// set the _WIN32_WINNT macro to the platform you wish to support before including SDKDDKVer.h.

#include <SDKDDKVer.h>