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DeviceInfo object

  • Artikkel

The DeviceInfo object provides access to the properties of a Windows Image Acquisition (WIA) hardware device. It also, through its Create method, provides a way for the application or script to connect to the device and obtain an Item object that represents the device. Use the Devices method to obtain a collection of DeviceInfo objects.

Members

The DeviceInfo object has these types of members:

Methods

The DeviceInfo object has these methods.

Method Description
Create The Create method of the DeviceInfo object makes a connection to the WIA device specified by the DeviceInfo object, and returns an Item object that represents the device.
GetPropById The GetPropById method of the DeviceInfo object uses a device property's ID to return its value.

 

Properties

The DeviceInfo object has these properties.

Property Access type Description
Id
 Read-only
 Retrieves the ID of the WIA hardware device.
Manufacturer
 Read-only
 Retrieves the name of the manufacturer of this hardware device.
Name
 Read-only
 The name of the WIA hardware device as it appears in the UI.
Port
 Read-only
 Retrieves the port to which the WIA hardware device is connected.
Type
 Read-only
 Retrieves the type of WIA hardware device. Possible values are:
  • DigitalCamera
  • Scanner
  • StreamingVideo
  • Default
UIClsid
 Read-only
 Retrieves the class id of the manufacturer-provided user interface for this WIA hardware device. The value is a string representation of a GUID.

 

Requirements

Requirement Value
Minimum supported client
 Windows 2000 Professional, Windows XP [desktop apps only]
Minimum supported server
 Windows Server 2003 [desktop apps only]
DLL
Wiascr.dll (version 4.90 or later)