Unloading textures does not work in GC thread (yet)

Vocaluxe/Base/Fonts/CFont.cs

@@ -128,8 +128,8 @@ namespace Vocaluxe.Base.Fonts
 
         public void UnloadGlyphs()
         {
-            //foreach (CGlyph glyph in _Glyphs.Values)
-            //    glyph.UnloadTexture();
+            foreach (CGlyph glyph in _Glyphs.Values)
+                glyph.UnloadTexture();
             _Glyphs.Clear();
         }
 

Vocaluxe/Base/Fonts/CFonts.cs

@@ -418,9 +418,6 @@ namespace Vocaluxe.Base.Fonts
 
         public static void UnloadThemeFonts(string themeName)
         {
-            if (_Fonts.Count == 0)
-                return;
-
             int index = 0;
             while (index < _Fonts.Count)
             {

Vocaluxe/Base/Fonts/CGlyph.cs

@@ -128,7 +128,7 @@ namespace Vocaluxe.Base.Fonts
             CFonts.Height = oldHeight;
         }
 
-        ~CGlyph()
+        public void UnloadTexture()
         {
             CDraw.RemoveTexture(ref _Texture);
         }

Vocaluxe/Screens/CScreenTest.cs

@@ -20,7 +20,6 @@
 using System;
 using System.Windows.Forms;
 using Vocaluxe.Base;
-using Vocaluxe.Base.Fonts;
 using VocaluxeLib.Menu;
 
 namespace Vocaluxe.Screens