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Aztec Bar Code VC++ Aztec bar code VC++
Aztec bar code VC++
Price: US$199
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To print Aztec barcode from Visual C++ application, you need Barcodesoft bcsaztec.ttf font and cruflbcs.dll .

If you download and install the demo of Barcodesoft Aztec font on your
computer, you will find crUFLBCS.dll from
"C:\Program Files\Common Files\Barcodesoft\Fontutil\" folder.

If you don't find cruflbcs.dll on your computer, please download it from Aztec Barcode .

crUFLBCS.dll is a COM object with IAztec interface.
You can find detailed information about IAztec interface from readme.html.

To call the method of IAztec interface from VC++, you can use either Late Binding or Early Binding.

Late binding is used when type information of an object is unavailable at compile time.

Early binding requires the client to get access to the type library before compile.


Late Binding



Your codes to generate Aztec barcode using late binding run slower than using Early Binding.

However, your codes are version-independent as long as COM interface and method parameters remain unchanged.

CoInitialize(NULL);
CLSID clsid;
if (FAILED(::CLSIDFromProgID(L"cruflbcs.Aztec.1", &clsid)))
return 0;
IDispatch* pIDispatch = NULL;
if (FAILED(::CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, IID_IDispatch, (void**)&pIDispatch)))
return 0;
LPOLESTR szNameEncode = L"Encode";
DISPID dispid_encode;
HRESULT hr = pIDispatch->GetIDsOfNames(IID_NULL, &szNameEncode, 1, LOCALE_SYSTEM_DEFAULT, &dispid_encode);
CComBSTR bstrResult;
VARIANTARG v[1];
v[0].vt = VT_BSTR; v[0].bstrVal = SysAllocString(L"Barcodesoft Sample");
DISPPARAMS dispParams = { v, NULL, 1, 0 };
VARIANT vResult;
hr = pIDispatch->Invoke( dispid_encode, IID_NULL, GetUserDefaultLCID(), DISPATCH_METHOD,
&dispParams, &vResult, NULL, NULL);
if (FAILED(hr))
return 0;
pIDispatch->Release();
CoUninitialize();



Early Binding



Your codes to create Aztec barcode in VC++ application run faster than using Late Binding.

1. Import type library. Don't forget to call
CoInitialize() before using COM interface.

2. If you want to use T2OLE macro to convert
LPTSTR into LPOLESTR, you need to call USES_CONVERSION macro first.

3. You may either call Encode method or EncodeCR method to encode Aztec barcode with options.
#include <atlbase.h>
#include <atlconv.h>

#import "cruflbcs.dll"
using namespace cruflBCS;

USES_CONVERSION;
CoInitialize(NULL);
_bstr_t bstrOutput;
char pszToEncode[] = "Barcodesoft Sample";
try
{
cruflBCS::IAztecPtr pBcsAztec(__uuidof(CBcsAztec));
bstrOutput = pBcsAztec->Encode(T2OLE(pszToEncode));
}
catch (const _com_error& e)
{
_tprintf(_T("Error: 0x%08x %s\n"), e.Error(), e.ErrorMessage());
}
CoUninitialize();


Aztec barcode MFC wrapper class

Use MFC to Generate Wrapper Class



If you use VC++ 6 to create Aztec barcode, press Ctrl + W to start Class Wizard. Then click "Add Class" button, choose "From a type library".
Choose crUFLBCS.dll, then select IAztec Interface that you want to add wrappers and click OK.

If you use Visual Studio 2003 or above to generate Aztec barcode,
1. On the Project menu, select Add Class.
2. Select MFC Class from Typelib from the list of templates.
3. For Add Class from, select Registry.
4. In the list of available type libraries, find crUFLBCS.
5. From the list of interfaces in that type library, select all classes for which you want to add wrappers.
6. Click Finish.

Please don't forget to call OleInitialize(NULL) before using the following code snippet to generate Aztec barcode.
CString strOutput;
IAztec *pAztecObj = new IAztec();
if ( pAztecObj->CreateDispatch("cruflbcs.Aztec.1")
strOutput = pAztecObj->Encode("Barcodesoft Sample");


For more information about Aztec barcode, please click aztec.

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