Major revamp for beta, with simplified initialization and no winform/wpf dependency.

2026-02-25 13:04:07 +08:00 · 2026-01-08 21:20:58 -05:00
parent 1b02f0fcad
commit 51414ad136
124 changed files with 14367 additions and 13676 deletions
--- a/samples/ConsoleSample/Program.cs
+++ b/samples/ConsoleSample/Program.cs
@@ -0,0 +1,146 @@
+using NTwain;
+using NTwain.Data;
+using NTwain.Events;
+using System.Diagnostics;
+
+namespace ConsoleSample;
+
+internal class Program
+{
+    static void Main(string[] args)
+    {
+        Console.WriteLine($"[{(Environment.Is64BitProcess ? "64bit" : "32bit")}] Creating TwainAppSession instance...");
+
+        bool sourceDisabledEventFired = false;
+
+        using var twain = new NTwain.TwainAppSession();
+        twain.SourceDisabled += (s, e) =>
+        {
+            sourceDisabledEventFired = true;
+            Console.WriteLine($"Source disabled: {e.ProductName}");
+        };
+        twain.Transferred += OnTransferred;
+
+        Console.WriteLine("Opening DSM...");
+        var sts = twain.OpenDsm();
+        Console.WriteLine($"OpenDsm returned: {sts}");
+
+        if (sts.IsSuccess)
+        {
+            while (true)
+            {
+                var sources = twain.GetSources();
+                Console.WriteLine($"Found {sources.Count} sources.");
+                Console.WriteLine(" Source 0: [Choose by old dialog]");
+                for (var i = 0; i < sources.Count; i++)
+                {
+                    var src = sources[i];
+                    Console.WriteLine($" Source {i + 1}: {src.ProductName}");
+                }
+
+                Console.WriteLine("Choose a source index to open (or just press Enter to skip): ");
+                var input = Console.ReadLine();
+                TWIdentityWrapper? selectedSource = null;
+                var validInput = int.TryParse(input, out int index);
+                if (validInput && index > 0 && index <= sources.Count)
+                {
+                    selectedSource = sources[index - 1];
+                }
+                else if (validInput && index == 0)
+                {
+                    Console.WriteLine("Showing user select dialog...");
+                    sts = twain.ShowUserSelect();
+                    Console.WriteLine($"OpenSource returned: {sts}");
+
+                    if (sts.IsSuccess)
+                    {
+                        selectedSource = twain.DefaultSource;
+                    }
+                }
+
+                if (selectedSource == null)
+                {
+                    break;
+                }
+
+
+                Console.WriteLine($"Opening source: {selectedSource.ProductName}");
+                sts = twain.OpenSource(selectedSource);
+                Console.WriteLine($"OpenSource returned: {sts}");
+
+                if (sts.IsSuccess)
+                {
+                    sourceDisabledEventFired = false;
+                    xferCount = 0;
+                    watch.Restart();
+                    if (twain.EnableSource(NTwain.SourceEnableOption.ShowUI).IsSuccess)
+                    {
+                        while(!sourceDisabledEventFired)
+                        {
+                            Thread.Sleep(500);
+                        }
+                    }
+                    else
+                    {
+                        Console.WriteLine("Failed to enable source.");
+                    }
+
+
+                    Console.WriteLine($"Closing source: {selectedSource.ProductName}");
+                    sts = twain.CloseSource();
+                    Console.WriteLine($"CloseSource returned: {sts}");
+                }
+            }
+
+            Thread.Sleep(1000);
+
+            Console.WriteLine("Closing DSM...");
+            sts = twain.CloseDsm();
+            Console.WriteLine($"CloseDsm returned: {sts}");
+        }
+
+
+        Console.WriteLine("Press Enter to quit...");
+        Console.ReadLine();
+    }
+
+    static int xferCount = 0;
+    static Stopwatch watch = new Stopwatch();
+    private static void OnTransferred(TwainAppSession sender, TransferredEventArgs e)
+    {
+        if (e.Data != null)
+        {
+            var saveFile = Path.Combine(Environment.CurrentDirectory, $"twain_{DateTime.Now:yyyyMMdd_HHmmss}_{xferCount}");
+            
+            using (var img = new ImageMagick.MagickImage(e.Data.AsStream()))
+            {
+                var format = ImageMagick.MagickFormat.Png;
+                if (img.ColorType == ImageMagick.ColorType.Palette)
+                {
+                    // bw or gray
+                    saveFile += ".png";
+                }
+                else
+                {
+                    // color
+                    saveFile += ".jpg";
+                    format = ImageMagick.MagickFormat.Jpeg;
+                    img.Settings.Compression = ImageMagick.CompressionMethod.JPEG;
+                    img.Quality = (uint)85;
+                }
+                img.Write(saveFile, format);
+                Console.WriteLine($"SUCCESS! Got twain memory data #{++xferCount} on thread {Environment.CurrentManagedThreadId}, saving to {saveFile}.");
+            }
+        }
+        else if (e.FileInfo != null)
+        {
+            var fi = e.FileInfo.Value;
+            Console.WriteLine($"SUCCESS! Got twain file data #{++xferCount} on thread {Environment.CurrentManagedThreadId} as {fi.FileName}.");
+        }
+        else
+        {
+            Console.WriteLine($"BUMMER! No twain data #{++xferCount} on thread {Environment.CurrentManagedThreadId}.");
+        }
+        e.Dispose();
+    }
+}