Update Files

Kha/Backends/WPF/system/windows/controls/Canvas.hx

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+package system.windows.controls;
+
+import system.windows.FrameworkElement;
+
+@:native("System.Windows.Controls.Canvas")
+extern class Canvas extends FrameworkElement {
+	public function new(): Void;
+}

Kha/Backends/WPF/system/windows/controls/MediaElement.hx

@@ -0,0 +1,24 @@
+package system.windows.controls;
+
+import system.Uri;
+
+@:native("System.Windows.Controls.MediaElement")
+extern class MediaElement {
+	public var Volume: Float;
+	public var Source: Uri;
+	public var LoadedBehavior: MediaState;
+	public var UnloadedBehavior: MediaState;
+
+	public var MediaOpened: Dynamic;
+
+	public function new(): Void {}
+
+	public function Play(): Void {}
+
+	public function Pause(): Void {}
+
+	public function Stop(): Void {}
+}
+
+@:native("System.Windows.RoutedEventArgs")
+extern class RoutedEventArgs {}

Kha/Backends/WPF/system/windows/controls/MediaState.hx

@@ -0,0 +1,10 @@
+package system.windows.controls;
+
+@:native("System.Windows.Controls.MediaState")
+extern enum MediaState {
+	Manual;
+	Play;
+	Close;
+	Pause;
+	Stop;
+}