GetSupportedAsyncEvents Method (Device)

In This Topic

Returns an array of asynchronous events supported by device.

Syntax

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function GetSupportedAsyncEvents() As DeviceEventId()

'Usage
 
Dim instance As Device
Dim value() As DeviceEventId
 
value = instance.GetSupportedAsyncEvents()

public DeviceEventId[] GetSupportedAsyncEvents()

public: DeviceEventId[]* GetSupportedAsyncEvents();

public:
array<DeviceEventId>^ GetSupportedAsyncEvents();

Return Value

An array of asynchronous events supported by device.

Exceptions

Exception	Description
TwainInvalidStateException	Thrown if device is in wrong state.
TwainDeviceCapabilityException	Thrown if device does not support capability.
DebuggerException	Thrown if the .NET debugger is used and the function evaluation requires all threads to run.

Remarks

Call this method only when device is opened (State == DeviceState.Opened).

Requirements

Target Platforms: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows Server 2016, Windows Server 2012, Windows Server 2008, Windows Server 2003

Reference

Device Class
Device Members
IsAsyncEventsSupported Property
Open Method
AsyncEvents Property
AsyncEvent Event

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