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36 lines
1.5 KiB
C#
36 lines
1.5 KiB
C#
using NAPS2.Images.Gdi;
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using NAPS2.Scan;
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namespace NAPS2.Sdk.Samples;
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public class TwainSample
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{
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public static async Task Run()
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{
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// Scanning with TWAIN on Windows must happen from a 32-bit process. You can do this by building your exe as
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// 32-bit, but the better solution is to install the NAPS2.Sdk.Worker.Win32 Nuget package, which includes a
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// pre-compiled 32-bit NAPS2.Worker.exe. Then you only need to call ScanningContext.SetUpWin32Worker and you
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// should be able to scan with TWAIN.
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//
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// If you want to use a worker process but don't want to use a pre-compiled exe (or want to set up your own
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// logging etc), you can also build your own worker exe with the same name (and call WorkerServer.Run in its
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// Main method).
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using var scanningContext = new ScanningContext(new GdiImageContext());
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// Set up the worker; this includes starting a worker process in the background so it will be ready to respond
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// when we need it
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scanningContext.SetUpWin32Worker();
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var controller = new ScanController(scanningContext);
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// As we're not using the default (WIA) driver, we need to specify it when listing devices or scanning
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ScanDevice device = (await controller.GetDeviceList(Driver.Twain)).First();
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var options = new ScanOptions { Device = device };
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await foreach (var image in controller.Scan(options))
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{
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Console.WriteLine("Scanned a page!");
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}
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}
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} |