Do a little bit, and throw exceptions if we do not manage to create the context

binding/Binding/SKSurface.cs

@@ -13,21 +13,29 @@ namespace SkiaSharp
 		public SKSurface (SKImageInfo info)
 		{
 			handle = SkiaApi.sk_surface_new_raster (ref info, IntPtr.Zero);
+			if (handle == IntPtr.Zero)
+				throw new InvalidOperationException ();
 		}
 
 		public SKSurface (SKImageInfo info, SKSurfaceProps props)
 		{
 			handle = SkiaApi.sk_surface_new_raster (ref info, ref props);
+			if (handle == IntPtr.Zero)
+				throw new InvalidOperationException ();
 		}
 
 		public SKSurface (SKImageInfo info, IntPtr pixels, int rowBytes)
 		{
 			handle = SkiaApi.sk_surface_new_raster_direct (ref info, pixels, (IntPtr)rowBytes, IntPtr.Zero);
+			if (handle == IntPtr.Zero)
+				throw new InvalidOperationException ();
 		}
 
 		public SKSurface (SKImageInfo info, IntPtr pixels, int rowBytes, SKSurfaceProps props)
 		{
 			handle = SkiaApi.sk_surface_new_raster_direct (ref info, pixels, (IntPtr)rowBytes, ref props);
+			if (handle == IntPtr.Zero)
+				throw new InvalidOperationException ();
 		}
 
 		public void Dispose ()
@@ -55,6 +63,7 @@ namespace SkiaSharp
 
 		public SKCanvas Canvas {
 			get {
+				Console.WriteLine ("got: {0:x}", (long)handle);
 				if (canvas == null)
 					canvas = new SKCanvas (this, SkiaApi.sk_surface_get_canvas (handle));
 				return canvas;

binding/Desktop/Desktop.csproj

@@ -31,7 +31,6 @@
     <Reference Include="System" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="MyClass.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <Import Project="..\Binding\Binding.projitems" Label="Shared" Condition="Exists('..\Binding\Binding.projitems')" />

binding/Desktop/MyClass.cs

@@ -1 +0,0 @@
-

binding/Driver.csproj

@@ -19,6 +19,7 @@
     <WarningLevel>4</WarningLevel>
     <PlatformTarget>x86</PlatformTarget>
     <ConsolePause>false</ConsolePause>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
     <DebugType>full</DebugType>
@@ -28,6 +29,7 @@
     <WarningLevel>4</WarningLevel>
     <Externalconsole>true</Externalconsole>
     <PlatformTarget>x86</PlatformTarget>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
@@ -37,4 +39,10 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+  <ItemGroup>
+    <ProjectReference Include="Desktop\Desktop.csproj">
+      <Project>{467FA6DC-C3FB-4EF8-8B8F-338C13CC8A71}</Project>
+      <Name>Desktop</Name>
+    </ProjectReference>
+  </ItemGroup>
 </Project>

binding/Program.cs

@@ -1,4 +1,7 @@
 using System;
+using SkiaSharp;
+using System.Runtime.InteropServices;
+using System.IO;
 
 namespace Driver
 {
@@ -6,7 +9,20 @@ namespace Driver
 	{
 		public static void Main (string[] args)
 		{
-			Console.WriteLine ("Hello World!");
+			var info = new SKImageInfo (1024, 768, SKColorType.Rgba_8888, SKAlphaType.Opaque);
+			var buffer = new byte [1024 * 768 * 4];
+
+			unsafe {
+				fixed (byte * f = &buffer[0]) {	
+					using (var surface = new SKSurface (info, (IntPtr) f, 1024 * 4)) {
+						var canvas = surface.Canvas;
+						var paint = new SKPaint ();
+						canvas.DrawRect (new SKRect (10, 10, 1024, 758), paint);
+					}
+				}
+			}
+			File.WriteAllBytes ("/tmp/path", buffer);
+
 		}
 	}
-}
+}