diff --git a/src/Gtk/Perspex.Cairo/CairoPlatform.cs b/src/Gtk/Perspex.Cairo/CairoPlatform.cs
index 75f1c45668..5d9a003a93 100644
--- a/src/Gtk/Perspex.Cairo/CairoPlatform.cs
+++ b/src/Gtk/Perspex.Cairo/CairoPlatform.cs
@@ -36,7 +36,7 @@ namespace Perspex.Cairo
             return new FormattedTextImpl(s_pangoContext, text, fontFamily, fontSize, fontStyle, textAlignment, fontWeight);
         }
 
-        public IRenderTarget CreateRenderer(IPlatformHandle handle, double width, double height)
+        public IRenderTarget CreateRenderer(IPlatformHandle handle)
         {
             var window = handle as Gtk.Window;
             if (window == null)
@@ -45,7 +45,7 @@ namespace Perspex.Cairo
                     handle.HandleDescriptor));
 
             window.DoubleBuffered = true;
-            return new RenderTarget(window, width, height);
+            return new RenderTarget(window);
         }
 
         public IRenderTargetBitmapImpl CreateRenderTargetBitmap(int width, int height)
diff --git a/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs b/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs
index 4d8f05848a..bb12d1887e 100644
--- a/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs
+++ b/src/Gtk/Perspex.Cairo/Media/Imaging/RenderTargetBitmapImpl.cs
@@ -43,10 +43,5 @@ namespace Perspex.Cairo.Media.Imaging
         {
             return _renderTarget.CreateDrawingContext();
         }
-
-        void IRenderTarget.Resize(int width, int height)
-        {
-            throw new NotSupportedException();
-        }
     }
 }
\ No newline at end of file
diff --git a/src/Gtk/Perspex.Cairo/RenderTarget.cs b/src/Gtk/Perspex.Cairo/RenderTarget.cs
index 2daab33fbe..ee02a279bd 100644
--- a/src/Gtk/Perspex.Cairo/RenderTarget.cs
+++ b/src/Gtk/Perspex.Cairo/RenderTarget.cs
@@ -27,7 +27,7 @@ namespace Perspex.Cairo
         /// <param name="window">The window.</param>
         /// <param name="width">The width of the window.</param>
         /// <param name="height">The height of the window.</param>
-        public RenderTarget(Gtk.Window window, double width, double height)
+        public RenderTarget(Gtk.Window window)
         {
             _window = window;
         }
@@ -37,16 +37,6 @@ namespace Perspex.Cairo
             _surface = surface;
         }
 
-        /// <summary>
-        /// Resizes the renderer.
-        /// </summary>
-        /// <param name="width">The new width.</param>
-        /// <param name="height">The new height.</param>
-        public  void Resize(int width, int height)
-        {
-            // Don't need to do anything here.
-        }
-
 
         /// <summary>
         /// Creates a cairo surface that targets a platform-specific resource.
diff --git a/src/Perspex.Controls/Platform/ITopLevelRenderer.cs b/src/Perspex.Controls/Platform/ITopLevelRenderer.cs
index 0f58dac76e..16456378b7 100644
--- a/src/Perspex.Controls/Platform/ITopLevelRenderer.cs
+++ b/src/Perspex.Controls/Platform/ITopLevelRenderer.cs
@@ -34,14 +34,8 @@ namespace Perspex.Controls.Platform
                 return;
 
             var viewport = platformRender
-                .CreateRenderer(topLevel.PlatformImpl.Handle, initialClientSize.Width, initialClientSize.Height);
+                .CreateRenderer(topLevel.PlatformImpl.Handle);
             resources.Add(viewport);
-
-
-            resources.Add(topLevel.GetObservable(TopLevel.ClientSizeProperty).Subscribe(clientSize =>
-            {
-                viewport.Resize((int) clientSize.Width, (int) clientSize.Height);
-            }));
             resources.Add(queueManager.RenderNeeded.Subscribe(_
                 =>
                 Dispatcher.UIThread.InvokeAsync(() => topLevel.PlatformImpl.Invalidate(new Rect(topLevel.ClientSize)))));
diff --git a/src/Perspex.SceneGraph/Media/Imaging/Bitmap.cs b/src/Perspex.SceneGraph/Media/Imaging/Bitmap.cs
index 55b25738ad..e5f918a849 100644
--- a/src/Perspex.SceneGraph/Media/Imaging/Bitmap.cs
+++ b/src/Perspex.SceneGraph/Media/Imaging/Bitmap.cs
@@ -31,17 +31,6 @@ namespace Perspex.Media.Imaging
             PlatformImpl = factory.LoadBitmap(stream);
         }
 
-        /// <summary>
-        /// Initializes a new instance of the <see cref="Bitmap"/> class.
-        /// </summary>
-        /// <param name="width">The width of the bitmap, in pixels.</param>
-        /// <param name="height">The height of the bitmap, in pixels.</param>
-        public Bitmap(int width, int height)
-        {
-            IPlatformRenderInterface factory = PerspexLocator.Current.GetService<IPlatformRenderInterface>();
-            PlatformImpl = factory.CreateBitmap(width, height);
-        }
-
         /// <summary>
         /// Initializes a new instance of the <see cref="Bitmap"/> class.
         /// </summary>
diff --git a/src/Perspex.SceneGraph/Media/Imaging/RenderTargetBitmap.cs b/src/Perspex.SceneGraph/Media/Imaging/RenderTargetBitmap.cs
index 20fc55ebd8..289cde69b5 100644
--- a/src/Perspex.SceneGraph/Media/Imaging/RenderTargetBitmap.cs
+++ b/src/Perspex.SceneGraph/Media/Imaging/RenderTargetBitmap.cs
@@ -48,10 +48,5 @@ namespace Perspex.Media.Imaging
         }
 
         public DrawingContext CreateDrawingContext() => PlatformImpl.CreateDrawingContext();
-
-        void IRenderTarget.Resize(int width, int height)
-        {
-            throw new NotSupportedException();
-        }
     }
 }
diff --git a/src/Perspex.SceneGraph/Platform/IPlatformRenderInterface.cs b/src/Perspex.SceneGraph/Platform/IPlatformRenderInterface.cs
index e79da32923..ccf55104a8 100644
--- a/src/Perspex.SceneGraph/Platform/IPlatformRenderInterface.cs
+++ b/src/Perspex.SceneGraph/Platform/IPlatformRenderInterface.cs
@@ -11,14 +11,6 @@ namespace Perspex.Platform
     /// </summary>
     public interface IPlatformRenderInterface
     {
-        /// <summary>
-        /// Creates a bitmap implementation.
-        /// </summary>
-        /// <param name="width">The width of the bitmap.</param>
-        /// <param name="height">The height of the bitmap.</param>
-        /// <returns>An <see cref="IBitmapImpl"/>.</returns>
-        IBitmapImpl CreateBitmap(int width, int height);
-
         /// <summary>
         /// Creates a formatted text implementation.
         /// </summary>
@@ -50,7 +42,7 @@ namespace Perspex.Platform
         /// <param name="width">The initial width of the render.</param>
         /// <param name="height">The initial height of the render.</param>
         /// <returns>An <see cref="IRenderTarget"/>.</returns>
-        IRenderTarget CreateRenderer(IPlatformHandle handle, double width, double height);
+        IRenderTarget CreateRenderer(IPlatformHandle handle);
 
         /// <summary>
         /// Creates a render target bitmap implementation.
diff --git a/src/Perspex.SceneGraph/Platform/IRenderTarget.cs b/src/Perspex.SceneGraph/Platform/IRenderTarget.cs
index a5c8f71d79..e6a167c1ae 100644
--- a/src/Perspex.SceneGraph/Platform/IRenderTarget.cs
+++ b/src/Perspex.SceneGraph/Platform/IRenderTarget.cs
@@ -18,12 +18,5 @@ namespace Perspex.Platform
         /// Creates an <see cref="DrawingContext"/> for a rendering session.
         /// </summary>
         DrawingContext CreateDrawingContext();
-
-        /// <summary>
-        /// Resizes the rendered viewport.
-        /// </summary>
-        /// <param name="width">The new width.</param>
-        /// <param name="height">The new height.</param>
-        void Resize(int width, int height);
     }
 }
diff --git a/src/Skia/Perspex.Skia.Android/SkiaView.cs b/src/Skia/Perspex.Skia.Android/SkiaView.cs
index 934d282e2b..c261f1d3fe 100644
--- a/src/Skia/Perspex.Skia.Android/SkiaView.cs
+++ b/src/Skia/Perspex.Skia.Android/SkiaView.cs
@@ -59,7 +59,6 @@ namespace Perspex.Skia.Android
         public void SurfaceChanged(ISurfaceHolder holder, Format format, int width, int height)
         {
             Log.Info("PERSPEX", "Surface Changed");
-            _renderTarget.Resize(width, height);
             Draw();
         }
 
@@ -68,7 +67,7 @@ namespace Perspex.Skia.Android
             Log.Info("PERSPEX", "Surface Created");
             _renderTarget =
                 PerspexLocator.Current.GetService<IPlatformRenderInterface>()
-                    .CreateRenderer(new PlatformHandle(holder.Surface.Handle, "Surface"), Width, Height);
+                    .CreateRenderer(new PlatformHandle(holder.Surface.Handle, "Surface"));
             Draw();
         }
 
diff --git a/src/Skia/Perspex.Skia/BitmapImpl.cs b/src/Skia/Perspex.Skia/BitmapImpl.cs
index 19c6b2c67f..75c2ae5213 100644
--- a/src/Skia/Perspex.Skia/BitmapImpl.cs
+++ b/src/Skia/Perspex.Skia/BitmapImpl.cs
@@ -43,11 +43,6 @@ namespace Perspex.Skia
                     new DrawingContextImpl(MethodTable.Instance.RenderTargetCreateRenderingContext(Handle)));
         }
 
-        public void Resize(int width, int height)
-        {
-            MethodTable.Instance.ResizeBitmap(Handle, PixelWidth = Math.Max(1, width), PixelHeight = Math.Max(1, height));
-        }
-
         public BitmapImpl(IntPtr handle, int width, int height) : base(handle)
         {
             PixelHeight = height;
diff --git a/src/Skia/Perspex.Skia/MethodTable.cs b/src/Skia/Perspex.Skia/MethodTable.cs
index cabe262569..ee17de4f3a 100644
--- a/src/Skia/Perspex.Skia/MethodTable.cs
+++ b/src/Skia/Perspex.Skia/MethodTable.cs
@@ -10,20 +10,15 @@ namespace Perspex.Skia
     internal unsafe abstract class MethodTable
     {
         [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-        public delegate IntPtr _CreateRenderTarget(IntPtr nativeHandle, int width, int height);
+        public delegate IntPtr _CreateWindowRenderTarget(IntPtr nativeHandle);
 
-        public _CreateRenderTarget CreateRenderTarget;
+        public _CreateWindowRenderTarget CreateWindowWindowRenderTarget;
 
         [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
         public delegate IntPtr _RenderTargetCreateRenderingContext(IntPtr target);
 
         public _RenderTargetCreateRenderingContext RenderTargetCreateRenderingContext;
 
-        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-        public delegate void _RenderTargetResize(IntPtr target, int width, int height);
-
-        public _RenderTargetResize RenderTargetResize;
-
         [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
         public delegate void _DisposeRenderTarget(IntPtr target);
 
@@ -106,11 +101,6 @@ namespace Perspex.Skia
 
         public _CreateRenderTargetBitmap CreateRenderTargetBitmap;
 
-        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
-        public delegate void _ResizeBitmap(IntPtr image, int width, int height);
-
-        public _ResizeBitmap ResizeBitmap;
-
         [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
         public delegate void _DisposeImage(IntPtr image);
 
@@ -169,9 +159,8 @@ namespace Perspex.Skia
 
         private static readonly Type[] TableOrder = new Type[]
         {
-            typeof (_CreateRenderTarget),
+            typeof (_CreateWindowRenderTarget),
             typeof (_DisposeRenderTarget),
-            typeof (_RenderTargetResize),
             typeof (_RenderTargetCreateRenderingContext),
             typeof (_DisposeRenderingContext),
             typeof (_DrawRectangle),
@@ -189,7 +178,6 @@ namespace Perspex.Skia
             typeof (_SaveImage),
             typeof (_DrawImage),
             typeof (_CreateRenderTargetBitmap),
-            typeof (_ResizeBitmap),
             typeof (_DisposeImage),
             typeof (_GetDrawingContextSettingsPtr),
             typeof (_CreateTypeface),
diff --git a/src/Skia/Perspex.Skia/PlatformRenderInterface.cs b/src/Skia/Perspex.Skia/PlatformRenderInterface.cs
index 6e79c1e35c..3b67247081 100644
--- a/src/Skia/Perspex.Skia/PlatformRenderInterface.cs
+++ b/src/Skia/Perspex.Skia/PlatformRenderInterface.cs
@@ -59,11 +59,7 @@ namespace Perspex.Skia
             return new BitmapImpl(width, height);
         }
 
-        public IRenderTarget CreateRenderer(IPlatformHandle handle, double width, double height)
-        {
-            width = Math.Min(1, width);
-            height = Math.Min(1, height);
-            return new RenderTarget(MethodTable.Instance.CreateRenderTarget(handle.Handle, (int) width, (int) height));
-        }
+        public IRenderTarget CreateRenderer(IPlatformHandle handle) 
+            => new RenderTarget(MethodTable.Instance.CreateWindowWindowRenderTarget(handle.Handle));
     }
 }
diff --git a/src/Skia/Perspex.Skia/RenderTarget.cs b/src/Skia/Perspex.Skia/RenderTarget.cs
index 6d47bf0405..d727146e92 100644
--- a/src/Skia/Perspex.Skia/RenderTarget.cs
+++ b/src/Skia/Perspex.Skia/RenderTarget.cs
@@ -21,10 +21,5 @@ namespace Perspex.Skia
                 new DrawingContext(
                     new DrawingContextImpl(MethodTable.Instance.RenderTargetCreateRenderingContext(Handle)));
         }
-
-        public void Resize(int width, int height)
-        {
-            MethodTable.Instance.RenderTargetResize(Handle,Math.Max(width, 1), Math.Max(height, 1));
-        }
     }
 }
diff --git a/src/Skia/native.url b/src/Skia/native.url
index 61e18108ae..697513ae7a 100644
--- a/src/Skia/native.url
+++ b/src/Skia/native.url
@@ -1 +1 @@
-https://dl.dropboxusercontent.com/u/18301199/Perspex.Skia/abi-0001.zip
+https://dl.dropboxusercontent.com/u/18301199/Perspex.Skia/abi-0002.zip
diff --git a/src/Windows/Perspex.Direct2D1/Direct2D1Platform.cs b/src/Windows/Perspex.Direct2D1/Direct2D1Platform.cs
index fef168bd27..93c820b26d 100644
--- a/src/Windows/Perspex.Direct2D1/Direct2D1Platform.cs
+++ b/src/Windows/Perspex.Direct2D1/Direct2D1Platform.cs
@@ -41,11 +41,11 @@ namespace Perspex.Direct2D1
             return new FormattedTextImpl(text, fontFamily, fontSize, fontStyle, textAlignment, fontWeight);
         }
 
-        public IRenderTarget CreateRenderer(IPlatformHandle handle, double width, double height)
+        public IRenderTarget CreateRenderer(IPlatformHandle handle)
         {
             if (handle.HandleDescriptor == "HWND")
             {
-                return new RenderTarget(handle.Handle, width, height);
+                return new RenderTarget(handle.Handle);
             }
             else
             {
diff --git a/src/Windows/Perspex.Direct2D1/Media/Imaging/RenderTargetBitmapImpl.cs b/src/Windows/Perspex.Direct2D1/Media/Imaging/RenderTargetBitmapImpl.cs
index cf785aa444..38445c0d5b 100644
--- a/src/Windows/Perspex.Direct2D1/Media/Imaging/RenderTargetBitmapImpl.cs
+++ b/src/Windows/Perspex.Direct2D1/Media/Imaging/RenderTargetBitmapImpl.cs
@@ -39,10 +39,6 @@ namespace Perspex.Direct2D1.Media
         }
 
         public Perspex.Media.DrawingContext CreateDrawingContext() => new RenderTarget(_target).CreateDrawingContext();
-
-        void IRenderTarget.Resize(int width, int height)
-        {
-            throw new NotSupportedException();
-        }
+        
     }
 }
diff --git a/src/Windows/Perspex.Direct2D1/Perspex.Direct2D1.csproj b/src/Windows/Perspex.Direct2D1/Perspex.Direct2D1.csproj
index f8f91ea467..38e9b9ed8e 100644
--- a/src/Windows/Perspex.Direct2D1/Perspex.Direct2D1.csproj
+++ b/src/Windows/Perspex.Direct2D1/Perspex.Direct2D1.csproj
@@ -69,6 +69,9 @@
     <Compile Include="..\..\Shared\SharedAssemblyInfo.cs">
       <Link>Properties\SharedAssemblyInfo.cs</Link>
     </Compile>
+    <Compile Include="..\Perspex.Win32\Interop\UnmanagedMethods.cs">
+      <Link>UnmanagedMethods.cs</Link>
+    </Compile>
     <Compile Include="Direct2D1Platform.cs" />
     <Compile Include="Disposable.cs" />
     <Compile Include="Media\BrushImpl.cs" />
diff --git a/src/Windows/Perspex.Direct2D1/RenderTarget.cs b/src/Windows/Perspex.Direct2D1/RenderTarget.cs
index 66ffe80448..53a04683d2 100644
--- a/src/Windows/Perspex.Direct2D1/RenderTarget.cs
+++ b/src/Windows/Perspex.Direct2D1/RenderTarget.cs
@@ -6,6 +6,7 @@ using Perspex.Direct2D1.Media;
 using Perspex.Media;
 using Perspex.Platform;
 using Perspex.Rendering;
+using Perspex.Win32.Interop;
 using SharpDX;
 using SharpDX.Direct2D1;
 using DrawingContext = Perspex.Media.DrawingContext;
@@ -15,19 +16,25 @@ namespace Perspex.Direct2D1
 {
     public class RenderTarget : IRenderTarget
     {
+        private readonly IntPtr _hwnd;
+        private Size2 _savedSize;
+
         /// <summary>
         /// The render target.
         /// </summary>
         private readonly SharpDX.Direct2D1.RenderTarget _renderTarget;
 
+
+
         /// <summary>
         /// Initializes a new instance of the <see cref="RenderTarget"/> class.
         /// </summary>
         /// <param name="hwnd">The window handle.</param>
         /// <param name="width">The width of the window.</param>
         /// <param name="height">The height of the window.</param>
-        public RenderTarget(IntPtr hwnd, double width, double height)
+        public RenderTarget(IntPtr hwnd)
         {
+            _hwnd = hwnd;
             Direct2DFactory = PerspexLocator.Current.GetService<Factory>();
             DirectWriteFactory = PerspexLocator.Current.GetService<DwFactory>();
 
@@ -38,7 +45,7 @@ namespace Perspex.Direct2D1
             HwndRenderTargetProperties hwndProperties = new HwndRenderTargetProperties
             {
                 Hwnd = hwnd,
-                PixelSize = new Size2((int)width, (int)height),
+                PixelSize = _savedSize = GetWindowSize(),
                 PresentOptions = PresentOptions.Immediately,
             };
 
@@ -48,6 +55,13 @@ namespace Perspex.Direct2D1
                 hwndProperties);
         }
 
+        Size2 GetWindowSize()
+        {
+            UnmanagedMethods.RECT rc;
+            UnmanagedMethods.GetClientRect(_hwnd, out rc);
+            return new Size2(rc.right - rc.left, rc.bottom - rc.top);
+        }
+
         /// <summary>
         /// Initializes a new instance of the <see cref="RenderTarget"/> class.
         /// </summary>
@@ -74,31 +88,22 @@ namespace Perspex.Direct2D1
             get; }
 
         /// <summary>
-        /// Resizes the renderer.
+        /// Creates a drawing context for a rendering session.
         /// </summary>
-        /// <param name="width">The new width.</param>
-        /// <param name="height">The new height.</param>
-        public void Resize(int width, int height)
+        /// <returns>An <see cref="Perspex.Media.DrawingContext"/>.</returns>
+        public DrawingContext CreateDrawingContext()
         {
-            WindowRenderTarget window = _renderTarget as WindowRenderTarget;
-
-            if (window == null)
+            var window = _renderTarget as WindowRenderTarget;
+            if (window != null)
             {
-                throw new InvalidOperationException(string.Format(
-                    "A renderer with a target of type '{0}' cannot be resized.",
-                    _renderTarget.GetType().Name));
+                var size = GetWindowSize();
+                if (size != _savedSize)
+                    window.Resize(_savedSize = size);
             }
 
-            window.Resize(new Size2(width, height));
+            return new DrawingContext(new Media.DrawingContext(_renderTarget, DirectWriteFactory));
         }
 
-        /// <summary>
-        /// Creates a drawing context for a rendering session.
-        /// </summary>
-        /// <returns>An <see cref="Perspex.Media.DrawingContext"/>.</returns>
-        public DrawingContext CreateDrawingContext() 
-            => new DrawingContext(new Media.DrawingContext(_renderTarget, DirectWriteFactory));
-
         public void Dispose()
         {
             _renderTarget.Dispose();
diff --git a/src/Windows/Perspex.Win32/Interop/UnmanagedMethods.cs b/src/Windows/Perspex.Win32/Interop/UnmanagedMethods.cs
index aa7681a27a..80dd0cd672 100644
--- a/src/Windows/Perspex.Win32/Interop/UnmanagedMethods.cs
+++ b/src/Windows/Perspex.Win32/Interop/UnmanagedMethods.cs
@@ -5,7 +5,6 @@ using System;
 using System.Diagnostics.CodeAnalysis;
 using System.Runtime.InteropServices;
 using System.Text;
-using Perspex.Input;
 
 // ReSharper disable InconsistentNaming
 #pragma warning disable 169