Open() Method (Device)

In This Topic

Opens the device.

Syntax

'Declaration

Public Sub Open()

public void Open()

public: void Open()

public:
void Open()

Exceptions

Exception	Description
System.ObjectDisposedException	Thrown if device is disposed.
TwainInvalidStateException	Thrown if device is in wrong state.
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 closed (State == DeviceState.Closed).

Requirements

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

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