| Exception | Description |
|---|---|
| System.ObjectDisposedException | Thrown if device is disposed. |
| TwainInvalidStateException | Thrown if device is transferring images. |
| DebuggerException | Thrown if the .NET debugger is used and the function evaluation requires all threads to run. |
Call this method only when device is opened (State == DeviceState.Opened) or device is enabled (State == DeviceState.Enabled).
Important: Do not call this method when device is transferring images (State == DeviceState.TransferReady or State == DeviceState.Transferring) - you need to cancel transfer with the CancelTransfer method and only then call this method.
Target Platforms: .NET 8, .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5