WIA_UI Component Windows Image Acquisition (WIA) provides both an application programming interface (API) and a device driver interface (DDI). It supports still digital cameras and scanners. It also allows the retrieval of still images from IEEE 1394-based digital video (DV) camcorders and universal serial bus-based (USB) Web cameras. There are two WIA components: WIA_Core and WIA_UI.

The WIA_UI component includes user interface (UI) wizards for interfacing with scanners and still digital cameras: Explorer UI components, common dialogs, and a photo-printing wizard.

The still camera dialog allows the user to view thumbnails, preview full-sized pictures, view picture information and delete pictures. The scanner and camera wizards allow users to easily retrieve images from all supported devices. Depending on the device type, the wizard presents the user with device-specific features.

WIA includes a scripting model, which presents most WIA device features to a scripting based application.

An application writer has the following four choices for communicating with WIA devices:

  • Use the WIA high-level interfaces, which are tied to the WIA common dialogs. This provides a minimal-effort approach.
  • Program directly to the WIA interfaces. This adds flexibility to implement custom solutions and UI-less mode support for devices.
  • Use the TWAIN compatibility layer, which exposes WIA devices as TWAIN devices. The compatibility layer is limited to UI-mode only and single-image transfer.
  • Support the common file open and file insert dialog. This dialog is not supported for scanners, and it is only supported with video cameras after frames have been captured.

Other imaging features associated with WIA include My Pictures Folder and My Pictures Screensaver.

Component Configuration

There are no configuration requirements for this component.

For More Information

For more information on WIA, see this Microsoft Web site.

]]> %11% wiashext.dll 0 False Shell Extension Allows WIA devices to be a part of shell namepspace %11% wiaacmgr.exe 0 False Acquisition Manager Wizard which steps users through image acquistion %11% camocx.dll 0 False Camera OCX for webview Allows webview script to interact with WIA devices %11% wiadefui.dll 0 False WIA Common Dialogs Common Dialogs for WIA apps %11% ssmypics.scr 0 False My Pictures Screen Saver Screen saver that shows images from My Pictures folder False True %11%\wiashext.dll 0 0 register WIASHEXT.DLL Call DLLRegisterServer on wiashext.dll False True %11%\camocx.dll 0 0 register CAMOCX.DLL Call DLLRegister on camocx.dll False True %11%\wiadefui.dll 0 0 register WIADEFUI.DLL Call DLLRegister on wiadefui.dll %11% wiavideo.dll False WIA Video driver UI component WIA Video driver UI component %11% photowiz.dll False Photo Printing Wizard Prints out image files in photographic sizes False True %11%\photowiz.dll 0 0 register PHOTOWIZ.DLL Call DLLRegsiter on photowiz.dll False True %11%\wiavideo.dll 0 0 register WIAVIDEO.DLL Call DLLRegister on wiavideo.dll File msvcrt.dll File ADVAPI32.dll File GDI32.dll File gdiplus.dll File KERNEL32.dll File ole32.dll File OLEAUT32.dll File SHELL32.dll File SHLWAPI.dll File USER32.dll File WININET.dll File SETUPAPI.dll File STI.dll File WINMM.dll File MSIMG32.dll File COMCTL32.dll File ntdll.dll File WINSPOOL.DRV File urlmon.dll {00000000-0000-0000-0000-000000000000} Camera.Hlp %18% False 0 0 Camera.Hlp {00000000-0000-0000-0000-000000000000} File hhctrl.ocx Dependency upon 'hhctrl.ocx' {00000000-0000-0000-0000-000000000000} camera.chm %18% False 0 21924 camera.chm Windows Image Acquisition User Interface 1.1 Windows Image Acquisition User Interface. Includes scanning and camera wizard. 2000 Microsoft Corp. Microsoft Corp. ricktu vlads;ricktu 7/26/2000 10/17/2001 6:24:09 PM