Playing with more interfaces.

NTwain/ITripletControl.cs

@@ -0,0 +1,29 @@
+using NTwain.Triplets;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace NTwain
+{
+    /// <summary>
+    /// Interface for providing TWAIN triplet access.
+    /// </summary>
+    public interface ITripletControl
+    {
+        /// <summary>
+        /// Gets the triplet operations defined for control data group.
+        /// </summary>
+        DGControl DGControl { get; }
+
+        /// <summary>
+        /// Gets the triplet operations defined for image data group.
+        /// </summary>
+        DGImage DGImage { get; }
+
+        /// <summary>
+        /// Gets the direct triplet operation entry for custom values.
+        /// </summary>
+        DGCustom DGCustom { get; }
+    }
+}