WIA provides a framework that allows a device to present its unique capabilities to the operating system and allows imaging applications to invoke those unique capabilities.
WIA 1.0 as well as STI TWAIN drivers are still supported directly on Windows Vista and Windows 7 alongside native WIA 2.0 device drivers and imaging applications.
We recommend Windows Portable Devices (WPD) API for digital cameras and digital video equipment in the future. However, video content support was removed from WIA for Windows Vista. WIA 2.0 is targeted towards scanners but continues to offer support for legacy WIA 1.0 applications and devices through a WIA 1.0 to WIA 2.0 compatibility layer provided by the WIA service. WIA 1.0 was introduced in Windows Me and Windows XP and supports scanners, digital cameras and digital video equipment. WIA is an imaging architecture that builds on STI and does not require TWAIN, although TWAIN is still supported alongside WIA. In Windows XP and Windows Me WIA was introduced. The imaging architecture in Windows 2000 and Windows 95 or later consisted of a low-level hardware abstraction, Still Image Architecture (STI), and a high-level set of APIs known as TWAIN.
The WIA includes a default segmentation filter that all drivers can take advantage of this way, applications do not have to write code for multi-region scanning for purposes such as separating out a large number of photos spread over a flatbed scanner.Applications can be initiated from the scanner scan button via push events supported by the WIA subsystem.WIA drivers are loaded in the WIA service process, thus providing a more stable driver environment.Windows runs a certification process for WIA drivers so WIA applications are guaranteed to be base-level compatible with all WIA-based scanners.WIA provides benefits to application developers, device manufacturers, and scanner users who need to interact with imaging hardware. This allows those different applications to talk to and interact with those different scanners without requiring the application writers and scanner manufactures to customize their application or drivers for each application-device combination.īenefits of Windows Image Acquisition 2.0 The WIA platform enables imaging/graphics applications to interact with imaging hardware and standardizes the interaction between different applications and scanners. Facts about Windows Image Acquisition 2.0.Development of Windows Image Acquisition.Benefits of Windows Image Acquisition 2.0.Windows Image Acquisition (WIA) is the still image acquisition platform in the Windows family of operating systems starting with Windows Millennium Edition (Windows Me) and Windows XP.