OpenedDevice Свойство (DeviceManager)

В этом разделе

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

Синтаксис

Visual Basic
C#
Управляемые расширения для 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.

Исключения

Исключение	Описание
TwainInvalidStateException	Thrown if TWAIN device manager is not open.
System.ObjectDisposedException	Thrown if TWAIN device manager is disposed.

Ремарки

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.

Требования

Целевые платформы: .NET 9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Смотрите также

Справочник

DeviceManager Class
Члены типа DeviceManager

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