VintaSoft Twain .NET SDK 15.4: Documentation for Web developer
Vintasoft.Twain Namespace / WebTwainDeviceJS type / get_Online Property
Syntax Exceptions Remarks BrowserCompatibility SeeAlso
In This Topic
get_Online Method
In This Topic
Gets a value indicating whether the TWAIN device is powered up and available.
Syntax
var instance = new Vintasoft.Twain.WebTwainDeviceJS(deviceName, productFamily, manufacturer, driverVersion, twainVersion, deviceManager, is64Bit);

var value; // Type: boolean
value = instance.get_Online();

Return Value

A value indicating whether the device is powered up and available.
Exceptions
ExceptionDescription
Thrown if device is not opened OR error occurs during getting value of device capability.
Remarks

This property sends a synchronous request to get value of WebTwainDeviceCapabilityIdEnumJS.DeviceOnline capability. If you want to use asynchronous request instead of synchronous request, please get information about WebTwainDeviceCapabilityIdEnumJS.DeviceOnline capability using WebTwainDeviceJS.getCapabilityAsync or WebTwainDeviceJS.getCapabilitiesAsync function.

Browser Compatibility
9
See Also

Reference

WebTwainDeviceJS Class
WebTwainDeviceJS Members

 

 

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