Wia object
The Wia object is the entry point for all Windows Image Acquisition (WIA) scripting functionality. Any application that uses the WIA scripting model must create a SafeWia or Wia object. Use that object to enumerate and create devices and to receive notification of hardware events.
Note
This object is not safe for scripting. For a version of this object that is safe for scripting, see SafeWia.
Members
The Wia object has these types of members:
Events
The Wia object has these events.
| Event | Description |
|---|---|
| OnDeviceConnected | Event that occurs when a new WIA hardware device is connected. |
| OnDeviceDisconnected | Event that occurs when a new WIA hardware device is disconnected. |
| OnTransferComplete | Event that occurs when a data transfer is completed successfully. |
Methods
The Wia object has these methods.
| Method | Description |
|---|---|
| Create | The Create method of the Wia object makes a connection to the specified WIA device, and returns an Item object that represents the device. |
Properties
The Wia object has these properties.
| Property | Access type | Description |
|---|---|---|
| Devices |
Read-only |
Collection of DeviceInfo objects that represents all of the devices installed on the computer. Read-only. Note: This collection is 0-based. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional, Windows XP [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| DLL |
|
| IID |
CLSID_Wia |