IWiaDevMgr2::EnumDeviceInfo method
Creates an enumerator of property information for each available Windows Image Acquisition (WIA) 2.0 device.
Syntax
HRESULT EnumDeviceInfo(
[in] LONG lFlags,
[out, retval] IEnumWIA_DEV_INFO **ppIEnum
);
Parameters
-
lFlags [in]
-
Type: LONG
Specifies the type of WIA 2.0 devices to enumerate.
-
WIA_DEVINFO_ENUM_LOCAL
-
Only locally connected active scanner devices are enumerated.
-
WIA_DEVINFO_ENUM_ALL
-
All devices are enumerated, both locally and remote, including inactive (disconnected) devices and legacy STI-only devices.
ppIEnum [out, retval]
Type: IEnumWIA_DEV_INFO**
Receives the address of a pointer to the IEnumWIA_DEV_INFO interface.
Return value
Type: HRESULT
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
The IWiaDevMgr2::EnumDeviceInfo method creates an enumerator object that supports the IEnumWIA_DEV_INFO interface. The method stores a pointer to the IEnumWIA_DEV_INFO interface in the parameter ppIEnum. Applications can use the IEnumWIA_DEV_INFO interface pointer to enumerate the properties of each WIA 2.0 device attached to the user's computer.
Applications must call the IUnknown::Release method on the interface pointers they receive through the ppIEnum parameter.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2008 [desktop apps only] |
| Header |
|
| IDL |
|