If you need to use more sophisticated features of a scanner, such as different options for each page when scanning in duplex mode, TWAIN should be your choice. If you only need basic scanning functions, WIA is enough. WIA uses a simplified user interface for all devices, based on a scripting object model. TWAIN enables device vendors to create a customized user interface for each driver. TWAIN is more common and works with virtually all scanner models. TWAIN has three transfer modes (native, memory, file) while WIA has only two (memory, file). The DS-530 II color duplex document scanner is the smart choice for business document management, offering fast, efficient performance. Simple Index will work with both TWAIN and ISIS scanner drivers. There are other differences between TWAIN and WIA. But, sometimes TWAIN based applications can communicate with WIA devices, such as scanners or cameras, via the “TWAIN compatibility layer”. Generally, if your application is going to interact with scanners most of the time, especially if old scanners need to be supported, TWAIN is recommended. It sounds very similar to TWAIN, doesn’t it?īoth TWAIN and WIA can work with scanners and cameras as long as the driver is installed. It enables applications to acquire images from all kinds of digital cameras and scanners. WIA (Windows Image Acquisition), introduced by Microsoft since Window Me, is the driver platform delivered with the Windows OS, including Windows 7, Windows 8, etc.
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