Sample improvements

NAPS2.Sdk.Samples/FileStorageSample.cs

@@ -19,6 +19,7 @@ namespace NAPS2.Sdk.Samples
             // To save memory, we can store scanned images on disk after initial processing.
             // This will put files in the system temp folder by default, which can be
             // overriden by changing FileStorageManager.Current.
+            // TODO: Probably this should go on StorageManager? It's weird to have to remember what's where
             ScannedImage.ConfigureBackingStorage<IFileStorage>();
             
             IScanDriver driver = new WiaScanDriver();

NAPS2.Sdk.Samples/HelloWorldSample.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using NAPS2.Images;
+using NAPS2.Scan;
+using NAPS2.Scan.Wia;
+
+namespace NAPS2.Sdk.Samples
+{
+    public class HelloWorldSample
+    {
+        public static async Task Run()
+        {
+            // This is the absolute bare bones example of scanning.
+            // See the other samples for more description and functionality.
+
+            IScanDriver driver = new WiaScanDriver();
+            ScannedImageSource imageSource = driver.Scan(new ScanProfile(), new ScanParams());
+            await imageSource.ForEach(scannedImage =>
+            {
+                using (scannedImage)
+                {
+                    Console.WriteLine("Scanned a page!");
+                }
+            });
+        }
+    }
+}

NAPS2.Sdk.Samples/NAPS2.Sdk.Samples.csproj

@@ -48,6 +48,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="FileStorageSample.cs" />
+    <Compile Include="HelloWorldSample.cs" />
     <Compile Include="ScanToBitmapSample.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>

NAPS2.Sdk.Samples/ScanToBitmapSample.cs

@@ -55,6 +55,7 @@ namespace NAPS2.Sdk.Samples
             // ForEach allows you to asynchronously process images as they arrive.
             await imageSource.ForEach(async scannedImage =>
             {
+                // Make sure ScannedImage and rendered images are disposed after use
                 using (scannedImage)
                 using (Bitmap bitmap = await renderer.Render(scannedImage))
                 {