- fixed keyboard sample (missing PlatformSystem)

- added a ArgumentNullException to EffectParameter in DirectX 10 RenderSystem (was a unhandled exception)
- fixed a issue in SpriteBatch when no draw call was made between begin and end calls (unhandled exception)

ANX.Framework/Graphics/SpriteBatch.cs

@@ -251,6 +251,8 @@ namespace ANX.Framework.Graphics
             hasBegun = false;
 
             if (this.currentSortMode != SpriteSortMode.Immediate)
+            {
+                if (currentBatchPosition > 0)
                 {
                     if (this.currentSortMode == SpriteSortMode.Texture)
                     {
@@ -278,6 +280,7 @@ namespace ANX.Framework.Graphics
                         lastTexture = spriteInfos[i].texture;
                     }
                 }
+            }
 
             Flush();
         }

RenderSystems/ANX.Framework.Windows.DX10/EffectParameter_DX10.cs

@@ -149,6 +149,11 @@ namespace ANX.RenderSystem.Windows.DX10
 
         public void SetValue(Texture value)
         {
+            if (value == null)
+            {
+                throw new ArgumentNullException("value");
+            }
+
             Texture2D_DX10 tex = value.NativeTexture as Texture2D_DX10;
             GraphicsDeviceWindowsDX10 graphicsDX10 = tex.GraphicsDevice.NativeDevice as GraphicsDeviceWindowsDX10;
             SharpDX.Direct3D10.Device device = graphicsDX10.NativeDevice;

Samples/KeyboardSample/KeyboardSample.csproj

@@ -115,6 +115,10 @@
       <Project>{97185A92-077D-4498-8B6A-8BFF04079044}</Project>
       <Name>ANX.MediaSystem.Windows.OpenAL</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\PlatformSystems\ANX.PlatformSystem.Windows\ANX.PlatformSystem.Windows.csproj">
+      <Project>{068EB2E9-963C-4E1B-8831-E25011F11FFE}</Project>
+      <Name>ANX.PlatformSystem.Windows</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\RenderSystems\ANX.Framework.Windows.DX10\ANX.RenderSystem.Windows.DX10.csproj">
       <Project>{5BE49183-2F6F-4527-AC90-D816911FCF90}</Project>
       <Name>ANX.Framework.Windows.DX10</Name>