var instance = new Vintasoft.Twain.WebTwainDeviceJS(deviceName, productFamily, manufacturer, driverVersion, twainVersion, deviceManager, is64Bit);

var value; // Type: Vintasoft.Twain.WebTwainUnitOfMeasureEnumJS
value = instance.get_UnitOfMeasure();

function get_UnitOfMeasure() : WebTwainUnitOfMeasureEnumJS;

Return Value

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

Reference

WebTwainDeviceJS Class
WebTwainDeviceJS Members