This fixes out or in/out enum parameters to generate correctly.

src/Generator/Generators/CSharp/CSharpMarshal.cs

@@ -149,7 +149,7 @@ namespace CppSharp.Generators.CSharp
             }
 
             PrimitiveType primitive;
-            if (pointee.IsPrimitiveType(out primitive))
+            if (pointee.IsPrimitiveType(out primitive) || pointee.IsEnumType())
             {
                 var param = Context.Parameter;
                 if (param != null && (param.IsOut || param.IsInOut))
@@ -462,7 +462,7 @@ namespace CppSharp.Generators.CSharp
             }
 
             PrimitiveType primitive;
-            if (pointee.IsPrimitiveType(out primitive))
+            if (pointee.IsPrimitiveType(out primitive) || pointee.IsEnumType())
             {
                 var param = Context.Parameter;
 

src/Generator/Generators/CSharp/CSharpTypePrinter.cs

@@ -232,7 +232,13 @@ namespace CppSharp.Generators.CSharp
             Enumeration @enum;
             if (desugared.TryGetEnum(out @enum))
             {
-                return @enum.Name + "*";
+                // Skip one indirection if passed by reference
+                var param = Context.Parameter;
+                if (isManagedContext && param != null && (param.IsOut || param.IsInOut)
+                    && pointee == finalPointee)
+                    return pointee.Visit(this, quals);
+
+                return pointee.Visit(this, quals) + "*";
             }
 
             Class @class;