Added D+D StandardCursors

src/Avalonia.Input/Cursors.cs

@@ -38,7 +38,10 @@ namespace Avalonia.Input
         TopLeftCorner,
         TopRightCorner,
         BottomLeftCorner,
-        BottomRightCorner
+        BottomRightCorner,
+        DragMove,
+        DragCopy,
+        DragLink,
 
         // Not available in GTK directly, see http://www.pixelbeat.org/programming/x_cursors/ 
         // We might enable them later, preferably, by loading pixmax direclty from theme with fallback image

src/Gtk/Avalonia.Gtk3/CursorFactory.cs

@@ -32,7 +32,10 @@ namespace Avalonia.Gtk3
             {StandardCursorType.TopLeftCorner, CursorType.TopLeftCorner},
             {StandardCursorType.TopRightCorner, CursorType.TopRightCorner},
             {StandardCursorType.BottomLeftCorner, CursorType.BottomLeftCorner},
-            {StandardCursorType.BottomRightCorner, CursorType.BottomRightCorner}
+            {StandardCursorType.BottomRightCorner, CursorType.BottomRightCorner},
+            {StandardCursorType.DragCopy, CursorType.CenterPtr},
+            {StandardCursorType.DragMove, CursorType.Fleur},
+            {StandardCursorType.DragLink, CursorType.Cross},
         };
 
         private static readonly Dictionary<StandardCursorType, IPlatformHandle> Cache =

src/OSX/Avalonia.MonoMac/Cursor.cs

@@ -51,6 +51,10 @@ namespace Avalonia.MonoMac
                 [StandardCursorType.TopSide] = NSCursor.ResizeUpCursor,
                 [StandardCursorType.UpArrow] = NSCursor.ResizeUpCursor,
                 [StandardCursorType.Wait] = NSCursor.ArrowCursor, //TODO
+                [StandardCursorType.DragMove] = NSCursor.DragCopyCursor, // TODO
+                [StandardCursorType.DragCopy] = NSCursor.DragCopyCursor,
+                [StandardCursorType.DragLink] = NSCursor.DragLinkCursor,
+
             };
         }
 

src/Windows/Avalonia.Win32/CursorFactory.cs

@@ -9,6 +9,7 @@ using System.Text;
 using System.Threading.Tasks;
 using Avalonia.Input;
 using Avalonia.Platform;
+using System.Runtime.InteropServices;
 
 namespace Avalonia.Win32
 {
@@ -20,6 +21,27 @@ namespace Avalonia.Win32
         {
         }
 
+        static CursorFactory()
+        {
+            LoadModuleCursor(StandardCursorType.DragMove, "ole32.dll", 2);
+            LoadModuleCursor(StandardCursorType.DragCopy, "ole32.dll", 3);
+            LoadModuleCursor(StandardCursorType.DragLink, "ole32.dll", 4);
+        }
+
+        private static void LoadModuleCursor(StandardCursorType cursorType, string module, int id)
+        {
+            IntPtr mh = UnmanagedMethods.GetModuleHandle(module);
+            if (mh != IntPtr.Zero)
+            {
+                IntPtr cursor = UnmanagedMethods.LoadCursor(mh, new IntPtr(id));
+                if (cursor != IntPtr.Zero)
+                {
+                    PlatformHandle phCursor = new PlatformHandle(cursor, PlatformConstants.CursorHandleType);
+                    Cache.Add(cursorType, phCursor);
+                }
+            }
+        }
+
         private static readonly Dictionary<StandardCursorType, int> CursorTypeMapping = new Dictionary
             <StandardCursorType, int>
         {
@@ -47,6 +69,11 @@ namespace Avalonia.Win32
             //Using SizeNorthEastSouthWest
             {StandardCursorType.TopRightCorner, 32643},
             {StandardCursorType.BottomLeftCorner, 32643},
+
+            // Fallback, should have been loaded from ole32.dll
+            {StandardCursorType.DragMove, 32516},
+            {StandardCursorType.DragCopy, 32516},
+            {StandardCursorType.DragLink, 32516},
         };
 
         private static readonly Dictionary<StandardCursorType, IPlatformHandle> Cache =