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

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

Return Value

A value indicating whether the lamp of device is on.
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.ILampState capability. If you want to use asynchronous request instead of synchronous request, please get information about WebTwainDeviceCapabilityIdEnumJS.ILampState capability using WebTwainDeviceJS.getCapabilityAsync or WebTwainDeviceJS.getCapabilitiesAsync function.

Browser Compatibility
9
See Also

Reference

WebTwainDeviceJS Class
WebTwainDeviceJS Members

 

 

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