Fixed Bug with window not closing after error

Vocaluxe/Lib/Draw/CDirect3D.cs

@@ -582,6 +582,11 @@ namespace Vocaluxe.Lib.Draw
         /// <returns></returns>
         public bool Unload()
         {
+            try
+            {
+                Close();
+            }
+            catch {}
             //Dispose all textures
             foreach (KeyValuePair<int, Texture> p in _D3DTextures)
             {

Vocaluxe/Lib/Draw/CDrawWinForm.cs

@@ -267,6 +267,11 @@ namespace Vocaluxe.Lib.Draw
 
         public bool Unload()
         {
+            try
+            {
+                Close();
+            }
+            catch {}
             Dispose();
             return true;
         }

Vocaluxe/Lib/Draw/COpenGL.cs

@@ -440,6 +440,11 @@ namespace Vocaluxe.Lib.Draw
 
         public bool Unload()
         {
+            try
+            {
+                Close();
+            }
+            catch {}
             STexture[] textures = new STexture[_Textures.Count];
             _Textures.Values.CopyTo(textures, 0);
             for (int i = 0; i < _Textures.Count; i++)