OpenedDevice Property (DeviceManager)

In This Topic

Gets TWAIN device, which is opened in this TWAIN device manager.

Syntax

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

'Declaration

<ReadOnlyAttribute(True)>
<BrowsableAttribute(False)>
Public ReadOnly Property OpenedDevice As Device

[ReadOnly(True)]
[Browsable(False)]
public Device OpenedDevice { get; }

[ReadOnly(True)]
[Browsable(False)]
public: __property Device* get_OpenedDevice();

[ReadOnly(True)]
[Browsable(False)]
public:
property Device^ OpenedDevice {
   Device^ get();
}

Property Value

Device opened in TWAIN device manager; null if TWAIN device manager does not have opened TWAIN device.

Exceptions

Exception	Description
TwainInvalidStateException	Thrown if TWAIN device manager is not open.
System.ObjectDisposedException	Thrown if TWAIN device manager is disposed.

Remarks

Only one TWIAIN device can be opened in TWAIN device manager at one moment. Create several instances of DeviceManager class if several TWAIN devices must be opened at one moment.

Requirements

Target Platforms: .NET 8, .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Reference

DeviceManager Class
DeviceManager Members

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