Introduction
dBarcode-2D Active DLL is a Dynamic Link Library which allows 2D barcode images, in the form of Windows Metafiles or bitmaps, to be created within the users own software. The image may be displayed on screen, printed on a printer or passed to the Windows clipboard for incorporation into another Windows application. It also allows font-based barcodes for a limited number of 2D barcode types to be created using the supplied barcode fonts.
The DLL may be used via calls from high level languages, such as C or Visual Basic, or as an Active-X control placed on a form/report using Active-X enabled systems such as MS Access, Visual Basic or Visual Studio.NET. As a result of this dual-use functionality, this manual is divided into two parts:
1. Application Program Interface – structure and calls for creating barcode images
2. Active-X methods and properties
The DLL is DLS2D4.DLL. This is installed into the Windows System (or System32) directory and self-registers when the product is installed using dLSoft’s Setup routine. Alternatively it may be registered by running the command:
REGSVR32 DLS2D4.DLL
The DLL must be registered before the Active-X methods and properties can be used, and it must be on the path for any application that will call the API functions. If only the non-Active-X functionality is required the DLL does not require registration with system’s OLE system.
More:
Registering the control