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

var value; // Type: Vintasoft.Twain.WebPageSizeEnumJS[]
value = instance.getSupportedPageSizes();

function getSupportedPageSizes() : WebPageSizeEnumJS[];

Return Value

This function sends a synchronous request to get supported values of WebDeviceCapabilityIdEnumJS.ISupportedSizes capability. If you want to use asynchronous request instead of synchronous request, please get information about WebDeviceCapabilityIdEnumJS.ISupportedSizes capability using WebTwainDeviceJS.getCapabilityAsync function.

Reference

WebTwainDeviceJS Class
WebTwainDeviceJS Members