VintaSoft Twain .NET SDK 15.1: Documentation for Web developer
Vintasoft.Twain Namespace / WebTwainDeviceJS type / getCapabilitiesAsync Methods / getCapabilitiesAsync(number[],Vintasoft.Twain.WebTwainDeviceCapabilityUsageModeEnumJS,function,function) Property
Syntax Exceptions Remarks BrowserCompatibility SeeAlso
getCapabilitiesAsync(number[],Vintasoft.Twain.WebTwainDeviceCapabilityUsageModeEnumJS,function,function) Method
Sends an asynchronous request to get values of TWAIN device capabilities.
Syntax
var instance = new Vintasoft.Twain.WebTwainDeviceJS(deviceName, productFamily, manufacturer, driverVersion, twainVersion, deviceManager, is64Bit);

var value; // Type: any

// Parameters
var twainCapabilityIds; // Type: number[]
var usageMode; // Type: WebTwainDeviceCapabilityUsageModeEnumJS
var successFunc; // Type: function
var errorFunc; // Type: function

value = instance.getCapabilitiesAsync(twainCapabilityIds, usageMode, successFunc, errorFunc);

Parameters

twainCapabilityIds
An array of integer values, which define identifiers of TWAIN device capabilities.
usageMode
An integer value, which defines usage mode of TWAIN device capability.
successFunc
A function that will be executed if request is executed successfully. Function prototype: "successFunc(twainDevice, capInfos)", where 'twainDevice' parameter is an instance of WebTwainDeviceJS class, 'capInfos' parameter is an array that contains information about TWAIN device capabilities.
errorFunc
A function that will be executed if request is failed. Function prototype: "errorFunc(twainDevice, errorMessage)", where 'twainDevice' parameter is an instance of WebTwainDeviceJS class, 'errorMessage' parameter is string that describes error.
Exceptions
ExceptionDescription
Thrown if argument has wrong type OR device is not opened OR error occurs during getting information about supported device capabilities.
Remarks

This function sends an asynchronous request to get information about TWAIN device capabilities. If you want to use synchronous request instead of asynchronous request, please use WebTwainDeviceJS.getCapabilities function.

Browser Compatibility
9
See Also