get_DefaultDevice Method

In This Topic

Gets the default TWAIN/SANE device.

Syntax

Javascript (Usage)
Javascript (Specification)

var instance = new Vintasoft.Twain.WebTwainDeviceManagerJS(service);

var value; // Type: Vintasoft.Twain.WebTwainDeviceJS
value = instance.get_DefaultDevice();

function get_DefaultDevice() : WebTwainDeviceJS;

Return Value

WebTwainDeviceJS object if device manager has default device; null if default device is not found.

Exceptions

Exception	Description
	Thrown if TWAIN device manager is not opened OR information about TWAIN devices is not received.

Remarks

This property sends a synchronous request to get the default TWAIN device. If you want to use asynchronous request instead of synchronous request, please use WebTwainDeviceManagerJS.getDevicesAsync function.

Browser Compatibility

Reference

WebTwainDeviceManagerJS Class
WebTwainDeviceManagerJS Members

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