LampState Property (Device)

In This Topic

Determines that the lamp of device is on.

Syntax

'Declaration

Public Property LampState As Boolean

public bool LampState { get; set; }

public: __property bool get_LampState();
public: __property void set_LampState(
   bool value
);

public:
property bool LampState {
   bool get();
   void set(bool value);
}

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 property only when device is opened (State == DeviceState.Opened).

Requirements

Target Platforms: .NET 10; .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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