LWia::SelectDevice

#include "ltwrappr.h"

virtual L_INT LWia::SelectDevice(pszDeviceId)

Selects the WIA device for the specified device ID.

Parameters

L_TCHAR * pszDeviceId

Pointer to a string containing the device ID.

To obtain the device ID, enumerate the available WIA devices on your machine.

Returns

Comments

This feature is available in LEADTOOLS version 16 or higher.

Use [LWia:SelectDevice when working with multiple WIA devices installed on a machine in order to select the WIA device without displaying the Select Device dialog. To do this, enumerate the WIA devices by calling the LWia::EnumDevices function. Then use it to keep a list of all received device IDs. Then call the [LWia:SelectDevice function using the device ID of the device to be selected.

Notes

WIA 2.0 does not support cameras or streaming video.

When using the high-level LWia::AcquireSimple, it is not necessary to call LWia::InitSession, [LWia:SelectDevice, or LWia::EndSession because it handles session initialization, device selection, and session end automatically.

Required DLLs and Libraries

• LTWIA
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.