Gamma Init

app/WindowsDisplayAPI/Native/DisplayConfig/DisplayConfigScaling.cs

@@ -0,0 +1,49 @@
+namespace WindowsDisplayAPI.Native.DisplayConfig
+{
+    /// <summary>
+    ///     Scaling modes
+    ///     https://msdn.microsoft.com/en-us/library/windows/hardware/ff553974(v=vs.85).aspx
+    /// </summary>
+    public enum DisplayConfigScaling : uint
+    {
+        /// <summary>
+        ///     Scaling mode is not specified
+        /// </summary>
+        NotSpecified = 0,
+
+        /// <summary>
+        ///     Indicates the identity transformation; the source content is presented with no change. This transformation is
+        ///     available only if the path's source mode has the same spatial resolution as the path's target mode.
+        /// </summary>
+        Identity = 1,
+
+        /// <summary>
+        ///     Indicates the centering transformation; the source content is presented unscaled, centered with respect to the
+        ///     spatial resolution of the target mode.
+        /// </summary>
+        Centered = 2,
+
+        /// <summary>
+        ///     Indicates the content is scaled to fit the path's target.
+        /// </summary>
+        Stretched = 3,
+
+        /// <summary>
+        ///     Indicates the aspect-ratio centering transformation.
+        /// </summary>
+        AspectRatioCenteredMax = 4,
+
+        /// <summary>
+        ///     Indicates that the caller requests a custom scaling that the caller cannot describe with any of the other values.
+        ///     Only a hardware vendor's value-add application should use this value, because the value-add application might
+        ///     require a private interface to the driver. The application can then use this value to indicate additional context
+        ///     for the driver for the custom value on the specified path.
+        /// </summary>
+        Custom = 5,
+
+        /// <summary>
+        ///     Indicates that the caller does not have any preference for the scaling.
+        /// </summary>
+        Preferred = 128
+    }
+}