添加项目文件。

zxing.core/xx/presentation/BarcodeWriterGeometry.Extensions.cs

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+/*
+ * Copyright 2017 ZXing.Net authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace ZXing
+{
+    using System.Windows.Media;
+
+    using Rendering;
+
+    /// <summary>
+    /// extensions methods which are working directly on any BarcodeWriterGeneric implementation
+    /// </summary>
+    public static class BarcodeWriterGeometryExtensions
+    {
+        /// <summary>
+        /// uses the BarcodeWriterGeneric implementation and the <see cref="WriteableBitmapRenderer"/> class for decoding
+        /// </summary>
+        /// <param name="writer"></param>
+        /// <param name="content"></param>
+        /// <returns></returns>
+        public static Geometry WriteAsGeometry(this IBarcodeWriterGeneric writer, string content)
+        {
+            var bitmatrix = writer.Encode(content);
+            var renderer = new GeometryRenderer();
+            return renderer.Render(bitmatrix, writer.Format, content, writer.Options);
+        }
+    }
+}