Gamma Init

app/WindowsDisplayAPI/Native/DisplayConfig/DisplayConfigTopologyId.cs

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+using System;
+
+namespace WindowsDisplayAPI.Native.DisplayConfig
+{
+    /// <summary>
+    ///     Possible topology identifications
+    ///     https://msdn.microsoft.com/en-us/library/windows/hardware/ff554001(v=vs.85).aspx
+    /// </summary>
+    [Flags]
+    public enum DisplayConfigTopologyId : uint
+    {
+        /// <summary>
+        ///     Invalid topology identification
+        /// </summary>
+        None = 0,
+
+        /// <summary>
+        ///     Indicates that the display topology is an internal configuration.
+        /// </summary>
+        Internal = 0x00000001,
+
+        /// <summary>
+        ///     Indicates that the display topology is clone-view configuration.
+        /// </summary>
+        Clone = 0x00000002,
+
+        /// <summary>
+        ///     Indicates that the display topology is an extended configuration.
+        /// </summary>
+        Extend = 0x00000004,
+
+        /// <summary>
+        ///     Indicates that the display topology is an external configuration.
+        /// </summary>
+        External = 0x00000008
+    }
+}