{"id":528,"date":"2026-09-30T10:43:15","date_gmt":"2026-09-30T02:43:15","guid":{"rendered":"https:\/\/6589jk.cn\/?p=528"},"modified":"2026-09-30T10:43:15","modified_gmt":"2026-09-30T02:43:15","slug":"wpf-writeablebitmap-%e5%ae%9e%e6%97%b6%e9%a2%84%e8%a7%88%ef%bc%9a%e7%ba%bf%e7%a8%8b%e4%ba%b2%e5%92%8c%e6%80%a7%e3%80%81%e6%b8%b2%e6%9f%93%e5%a4%b1%e6%95%88%e4%b8%8e%e5%b8%a7%e7%bc%93%e5%86%b2%e7%94%9f","status":"publish","type":"post","link":"https:\/\/6589jk.cn\/index.php\/2026\/09\/30\/wpf-writeablebitmap-%e5%ae%9e%e6%97%b6%e9%a2%84%e8%a7%88%ef%bc%9a%e7%ba%bf%e7%a8%8b%e4%ba%b2%e5%92%8c%e6%80%a7%e3%80%81%e6%b8%b2%e6%9f%93%e5%a4%b1%e6%95%88%e4%b8%8e%e5%b8%a7%e7%bc%93%e5%86%b2%e7%94%9f\/","title":{"rendered":"WPF WriteableBitmap \u5b9e\u65f6\u9884\u89c8\uff1a\u7ebf\u7a0b\u4eb2\u548c\u6027\u3001\u6e32\u67d3\u5931\u6548\u4e0e\u5e27\u7f13\u51b2\u751f\u547d\u5468\u671f"},"content":{"rendered":"

\u5927\u5bb6\u597d\uff0c\u6211\u662f\u540d\u4fa6\u63a2\u6a58\u96ea\u8389\uff01\u4eca\u5929\u8ffd\u8e2a\u7684\u7ebf\u7d22\u4e0d\u662f\u811a\u5370\uff0c\u800c\u662f\u4e00\u5e27\u56fe\u50cf\u4ece\u76f8\u673a\u4f20\u611f\u5668\u4e00\u8def\u5230 WPF \u5c4f\u5e55\u7684\u65c5\u7a0b\u3002\u5b9e\u65f6\u9884\u89c8\u660e\u660e\u4e00\u76f4\u6536\u5230\u65b0\u56fe\uff0c\u53d1\u5e03\u7248\u5374\u50cf\u9759\u6b62\u753b\uff1b\u9f20\u6807\u4e00\u7ecf\u8fc7\uff0c\u753b\u9762\u53c8\u7a81\u7136\u66f4\u65b0\u3002\u8981\u89e3\u5f00\u8fd9\u4e2a\u8c1c\u9898\uff0c\u5f97\u628a\u4e09\u4e2a\u5bb9\u6613\u6df7\u4e3a\u4e00\u8c08\u7684\u6982\u5ff5\u5206\u5f00\uff1a\u50cf\u7d20\u6570\u636e\u4f55\u65f6\u5199\u5165\u3001WPF \u4f55\u65f6\u6536\u5230\u6e32\u67d3\u8bf7\u6c42\u3001\u5e27\u7f13\u51b2\u4f55\u65f6\u5931\u6548<\/strong>\u3002<\/p>\n

1. \u5148\u753b\u51fa\u5b9e\u65f6\u9884\u89c8\u7684\u6570\u636e\u6d41<\/h2>\n

\u5178\u578b\u7684\u5de5\u4e1a\u76f8\u673a\u9884\u89c8\u6d41\u7a0b\u53ef\u4ee5\u7b80\u5316\u6210\uff1a<\/p>\n

\u76f8\u673a\u9a71\u52a8 \u2192 FrameQueueSink \u56de\u8c03 \u2192 \u50cf\u7d20\u62f7\u8d1d \u2192 WriteableBitmap \u2192 WPF \u5408\u6210\u5668 \u2192 \u5c4f\u5e55<\/code><\/pre>\n
\u8fd9\u91cc\u81f3\u5c11\u6709\u4e09\u4e2a\u4e0d\u540c\u7684\u201c\u5b8c\u6210\u201d\u65f6\u523b\uff1a<\/p>\n
    \n
  1. \u9a71\u52a8\u628a\u4e00\u5e27\u5199\u8fdb sink \u63d0\u4f9b\u7684\u7f13\u51b2\u533a\uff1b<\/li>\n
  2. \u5e94\u7528\u628a\u7f13\u51b2\u533a\u5185\u5bb9\u590d\u5236\u8fdb\u663e\u793a\u4f4d\u56fe\uff0c\u5e76\u6807\u8bb0\u53d8\u66f4\u533a\u57df\uff1b<\/li>\n
  3. WPF \u5c06\u66f4\u65b0\u540e\u7684\u4f4d\u56fe\u7eb9\u7406\u5408\u6210\u5e76\u63d0\u4ea4\u5230\u5c4f\u5e55\u3002<\/li>\n<\/ol>\n
    \u524d\u4e00\u6b65\u5b8c\u6210\uff0c\u5e76\u4e0d\u4ee3\u8868\u540e\u4e00\u6b65\u81ea\u52a8\u53d1\u751f\u3002\u5f88\u591a\u201c\u76f8\u673a\u6ca1\u6709\u5237\u65b0\u201d\u7684\u95ee\u9898\uff0c\u5b9e\u9645\u4e0a\u662f\u7b2c\u4e09\u6b65\u7f3a\u5c11\u6e32\u67d3\u8bf7\u6c42\u3002<\/p>\n
    2. AddDirtyRect \u4e0e InvalidateVisual \u4e0d\u662f\u540c\u4e00\u4ef6\u4e8b<\/h2>\n
    WriteableBitmap.AddDirtyRect<\/code> \u544a\u8bc9\u4f4d\u56fe\u54ea\u4e9b\u50cf\u7d20\u533a\u57df\u5df2\u4fee\u6539\u3002\u5b83\u89e3\u51b3\u7684\u662f\u201c\u54ea\u4e9b\u6570\u636e\u53d8\u4e86\u201d\uff0c\u4e0d\u662f\u201c\u73b0\u5728\u8bf7 WPF \u91cd\u65b0\u7ed8\u5236\u8fd9\u4e2a\u89c6\u89c9\u5143\u7d20\u201d\u3002<\/p>\n
    \u5982\u679c Image.Source<\/code> \u7ed1\u5b9a\u4e00\u76f4\u6307\u5411\u540c\u4e00\u4e2a WriteableBitmap<\/code> \u5b9e\u4f8b\uff0c\u5c5e\u6027\u503c\u6ca1\u6709\u53d8\u5316\uff0c\u7ed1\u5b9a\u7cfb\u7edf\u4e5f\u5c31\u6ca1\u6709\u65b0\u7684 Source \u53d8\u5316\u53ef\u901a\u77e5\u3002\u754c\u9762\u6ca1\u6709\u5176\u4ed6\u5e03\u5c40\u6216\u89c6\u89c9\u5931\u6548\u65f6\uff0c\u65b0\u50cf\u7d20\u53ef\u80fd\u8981\u7b49\u4e0b\u4e00\u6b21\u6e32\u67d3\u673a\u4f1a\u624d\u663e\u793a\u3002\u9f20\u6807\u79fb\u52a8\u5e38\u5e38\u4f1a\u66f4\u65b0\u5750\u6807\u3001\u6807\u5c3a\u6216\u9009\u533a\u7b49\u7ed1\u5b9a\u5c5e\u6027\uff0c\u610f\u5916\u89e6\u53d1\u89c6\u89c9\u5931\u6548\uff0c\u4e8e\u662f\u770b\u8d77\u6765\u50cf\u662f\u9f20\u6807\u628a\u76f8\u673a\u753b\u9762\u201c\u5524\u9192\u201d\u4e86\u3002<\/p>\n
    \u6b63\u786e\u7684\u7ebf\u7d22\u662f\uff1a\u50cf\u7d20\u66f4\u65b0\u5b8c\u6210\u540e\uff0c\u7531\u663e\u793a\u5c42\u660e\u786e\u8bf7\u6c42\u4e00\u6b21\u6e32\u67d3<\/strong>\u3002\u4e0d\u8981\u6bcf\u9694\u51e0\u5341\u6beb\u79d2\u65e0\u6761\u4ef6\u5237\u65b0\u6574\u4e2a\u89c6\u56fe\uff0c\u4e5f\u4e0d\u8981\u4f9d\u8d56\u9f20\u6807\u3001\u52a8\u753b\u6216\u5176\u4ed6\u63a7\u4ef6\u6070\u597d\u5f15\u53d1\u91cd\u7ed8\u3002<\/p>\n
    \u6309\u5e27\u66f4\u65b0\u901a\u77e5\u89c6\u56fe<\/h3>\n
    \u8ba9\u8d1f\u8d23\u5199\u50cf\u7d20\u7684\u670d\u52a1\u5728\u66f4\u65b0\u5b8c\u6210\u540e\u53d1\u51fa\u4e8b\u4ef6\uff1a<\/p>\n
    public event Action<WriteableBitmap>? FrameUpdated;\n\npublic void OnImageRefresh(IFrameQueueBuffer frame)\n{\n    WPFHelper.UIDo(() =>\n    {\n        WriteableBitmap bitmap = GetOrCreateBitmap(frame.FrameType);\n\n        bitmap.Lock();\n        try\n        {\n            CopyFramePixels(frame, bitmap);\n            bitmap.AddDirtyRect(\n                new Int32Rect(0, 0, bitmap.PixelWidth, bitmap.PixelHeight));\n        }\n        finally\n        {\n            bitmap.Unlock();\n        }\n\n        FrameUpdated?.Invoke(bitmap);\n    });\n}<\/code><\/pre>\n
    WPFHelper.UIDo<\/code> \u5728\u8fd9\u91cc\u7684\u91cd\u70b9\u4e0d\u662f\u201c\u6240\u6709\u76f8\u673a\u5904\u7406\u90fd\u5e94\u8be5\u5728 UI \u7ebf\u7a0b\u201d\uff0c\u800c\u662f\u8fd9\u4e2a\u9879\u76ee\u4e2d\u7684 WriteableBitmap<\/code> \u521b\u5efa\u548c\u5199\u5165\u64cd\u4f5c\u8981\u9075\u5faa UI Dispatcher \u7684\u7ebf\u7a0b\u8981\u6c42\u3002\u66fe\u5c1d\u8bd5\u628a\u50cf\u7d20\u62f7\u8d1d\u79fb\u5230\u91c7\u96c6\u7ebf\u7a0b\uff0c\u4f46\u76ee\u6807\u8fd0\u884c\u73af\u5883\u4e0b\u5e76\u4e0d\u80fd\u6b63\u786e\u5de5\u4f5c\uff1b\u4e0d\u80fd\u53ea\u51ed\u67d0\u4e2a API \u7684\u540d\u79f0\u6216\u6cdb\u5316\u7ecf\u9a8c\u63a8\u65ad\u7ebf\u7a0b\u5b89\u5168\uff0c\u5fc5\u987b\u5728\u5b9e\u9645 WPF \u6e32\u67d3\u8def\u5f84\u4e0a\u9a8c\u8bc1\u3002<\/p>\n
    \u89c6\u56fe\u53ea\u9700\u8ba2\u9605\u8fd9\u4e2a\u4e8b\u4ef6\uff0c\u5e76\u5bf9\u56fe\u50cf\u5143\u7d20\u53d1\u8d77\u5931\u6548\u8bf7\u6c42\uff1a<\/p>\n
    public UImage(UImageViewModel viewModel)\n{\n    InitializeComponent();\n    DataContext = viewModel;\n    imageManager = viewModel.ImageManager;\n\n    Loaded += (_, _) => imageManager.FrameUpdated += OnFrameUpdated;\n    Unloaded += (_, _) => imageManager.FrameUpdated -= OnFrameUpdated;\n}\n\nprivate void OnFrameUpdated(WriteableBitmap bitmap)\n{\n    ImageControl.InvalidateVisual();\n}<\/code><\/pre>\n
    \u7531\u4e8e\u901a\u77e5\u4ece UI Dispatcher \u4e0a\u53d1\u51fa\uff0c\u56de\u8c03\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u89c6\u56fe\u5143\u7d20\uff0c\u4e0d\u9700\u8981\u518d\u591a\u6d3e\u53d1\u4e00\u6b21\u3002\u8ba2\u9605\u8ddf\u968f Loaded<\/code>\/Unloaded<\/code>\uff0c\u89c6\u56fe\u79bb\u5f00\u89c6\u89c9\u6811\u540e\u5c31\u4e0d\u518d\u6301\u6709\u8ba2\u9605\u3002<\/p>\n
    3. \u4e3a\u4ec0\u4e48\u56fa\u5b9a 30Hz \u5237\u65b0\u4e0d\u662f\u597d\u66ff\u4ee3<\/h2>\n
    \u540e\u53f0\u4efb\u52a1\u6bcf 33 \u6beb\u79d2\u8c03\u7528\u4e00\u6b21 InvalidateVisual<\/code>\uff0c\u770b\u4e0a\u53bb\u7b80\u5355\uff0c\u4f46\u5b83\u8ddf\u76f8\u673a\u5e27\u7387\u548c\u89c6\u56fe\u751f\u547d\u5468\u671f\u6ca1\u6709\u5173\u7cfb\uff1a<\/p>\n
      \n
    • \u6ca1\u6709\u65b0\u5e27\u65f6\u4e5f\u6301\u7eed\u89e6\u53d1\u5237\u65b0\uff1b<\/li>\n
    • \u76f8\u673a\u5e27\u7387\u4e0e 30Hz \u4e0d\u4e00\u81f4\u65f6\uff0c\u5237\u65b0\u8bf7\u6c42\u4f1a\u548c\u5e27\u5230\u8fbe\u9519\u5f00\uff1b<\/li>\n
    • \u89c6\u56fe\u5378\u8f7d\u540e\u4efb\u52a1\u82e5\u672a\u53d6\u6d88\uff0c\u4ecd\u6301\u6709\u63a7\u4ef6\u5f15\u7528\u5e76\u7ee7\u7eed\u8fd0\u884c\uff1b<\/li>\n
    • \u9ad8\u5206\u8fa8\u7387\u4e0b\uff0c\u53cd\u590d\u4f7f\u6574\u4e2a\u89c6\u56fe\u5931\u6548\u4f1a\u589e\u52a0\u4e0d\u5fc5\u8981\u7684 UI \u4e0e\u5408\u6210\u8d1f\u62c5\u3002<\/li>\n<\/ul>\n
      \u5e27\u4e8b\u4ef6\u66f4\u8d34\u5408\u9700\u6c42\uff1a\u6709\u65b0\u5e27\u624d\u8bf7\u6c42\u5237\u65b0\uff0c\u56fe\u50cf\u65e0\u4eba\u67e5\u770b\u65f6\u4e5f\u53ef\u4ee5\u968f\u7740\u89c6\u56fe\u5378\u8f7d\u505c\u6b62\u901a\u77e5\u3002\u4fa6\u63a2\u7ed3\u8bba\uff1a\u5237\u65b0\u5e94\u7531\u6570\u636e\u53d8\u5316\u9a71\u52a8\uff0c\u800c\u4e0d\u662f\u7531\u4e00\u4e2a\u6c38\u4e0d\u4f11\u5ead\u7684\u5b9a\u65f6\u5668\u9a71\u52a8\u3002<\/p>\n
      4. \u4f18\u5316 UI \u7ebf\u7a0b\u4e0a\u7684\u50cf\u7d20\u62f7\u8d1d<\/h2>\n
      \u5982\u679c\u76f8\u673a\u8f93\u51fa\u7ea6\u4e3a 2592 \u00d7 1944\u3001\u6bcf\u50cf\u7d20 4 \u5b57\u8282\uff0c\u4e00\u5e27\u6570\u636e\u63a5\u8fd1 20 MiB\u3002\u8ba9\u8fd9\u6b21\u62f7\u8d1d\u5728 UI \u7ebf\u7a0b\u4e0a\u6267\u884c\uff0c\u786e\u5b9e\u4f1a\u5360\u7528 UI \u7ebf\u7a0b\u65f6\u95f4\u3002\u56e0\u6b64\u5e94\u5148\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u5de5\u4f5c\uff0c\u518d\u57fa\u4e8e\u76ee\u6807\u673a\u5668\u6d4b\u91cf\uff1a<\/p>\n
        \n
      • \u6309\u76f8\u673a\u5b9e\u9645\u5c3a\u5bf8\u590d\u7528\u540c\u4e00\u4e2a WriteableBitmap<\/code>\uff0c\u53ea\u5728\u9996\u5e27\u6216\u5206\u8fa8\u7387\u53d8\u5316\u65f6\u521b\u5efa\uff1b<\/li>\n
      • \u786e\u8ba4\u50cf\u7d20\u683c\u5f0f\u3001\u6e90 stride \u548c\u76ee\u6807 stride\uff0c\u907f\u514d\u9010\u50cf\u7d20\u8f6c\u6362\uff1b<\/li>\n
      • stride \u76f8\u540c\u4e14\u65e0\u5782\u76f4\u7ffb\u8f6c\u65f6\uff0c\u7528\u4e00\u6b21\u8fde\u7eed\u5185\u5b58\u62f7\u8d1d\u66ff\u4ee3\u6bcf\u884c\u4e00\u6b21\u8c03\u7528\uff1b<\/li>\n
      • \u53ea\u6709 BottomUp \u5e27\u6216\u884c\u8ddd\u4e0d\u540c\u624d\u9010\u884c\u590d\u5236\uff1b<\/li>\n
      • \u907f\u514d\u5728\u5e27\u56de\u8c03\u4e2d\u505a\u7f29\u653e\u3001\u7f16\u7801\u3001\u78c1\u76d8\u5199\u5165\u7b49\u4e0e\u663e\u793a\u65e0\u5173\u7684\u6162\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n
        if (!isBottomUp && sourceStride == destinationStride)\n{\n    Buffer.MemoryCopy(\n        source,\n        destination,\n        (long)destinationStride * height,\n        (long)sourceStride * height);\n}\nelse\n{\n    for (int y = 0; y < height; y++)\n    {\n        Buffer.MemoryCopy(\n            source + y * sourceStride,\n            destination + y * destinationStride,\n            destinationStride,\n            width * 4);\n    }\n}<\/code><\/pre>\n
        \u8fd9\u4e0d\u662f\u201c\u62f7\u8d1d\u8d8a\u5feb\u5c31\u4e00\u5b9a\u8d8a\u6d41\u7545\u201d\u7684\u4fdd\u8bc1\u3002\u8fd8\u8981\u6d4b\u91cf\u5e27\u5230\u8fbe\u7387\u3001UI Dispatcher \u6392\u961f\u65f6\u95f4\u3001\u6bcf\u5e27\u62f7\u8d1d\u8017\u65f6\u548c\u5b9e\u9645\u5448\u73b0\u5e27\u7387\u3002\u8981\u662f\u663e\u793a\u9700\u6c42\u53ea\u6709 30 \u5e27\/\u79d2\uff0c\u800c\u76f8\u673a\u9001\u6765 120 \u5e27\/\u79d2\uff0c\u5408\u7406\u7684\u4e22\u5e27\/\u8282\u6d41\u7b56\u7565\u53ef\u80fd\u6bd4\u8ba9 UI \u6d88\u5316\u6240\u6709\u5e27\u66f4\u5408\u9002\u3002<\/p>\n
        5. \u5e27\u7f13\u51b2\u7684\u751f\u547d\u5468\u671f\uff1a\u56de\u8c03\u8fd4\u56de\u540e\u5c31\u522b\u518d\u78b0<\/h2>\n
        FrameQueueSink<\/code> \u4f1a\u91cd\u7528\u8f93\u5165\u7f13\u51b2\u533a\u3002\u56de\u8c03\u8fd4\u56de\u5e76\u4ee5 FrameQueuedResult.ReQueue<\/code> \u5f52\u8fd8\u540e\uff0c\u4e0b\u4e00\u5e27\u5c31\u53ef\u80fd\u8986\u76d6\u540c\u4e00\u5757\u5185\u5b58\u3002\u56e0\u6b64\uff1a<\/p>\n
          \n
        • \u4e0d\u8981\u628a frame.Ptr<\/code> \u6216\u7f13\u51b2\u533a\u5bf9\u8c61\u4ea4\u7ed9\u5f02\u6b65\u961f\u5217\u7a0d\u540e\u62f7\u8d1d\uff1b<\/li>\n
        • \u9700\u8981\u663e\u793a\u65f6\uff0c\u5728\u56de\u8c03\u8fd4\u56de\u524d\u628a\u50cf\u7d20\u590d\u5236\u5230\u81ea\u5df1\u7ba1\u7406\u7684\u4f4d\u56fe\uff1b<\/li>\n
        • \u9700\u8981\u4fdd\u5b58\u67d0\u4e00\u5e27\u65f6\uff0c\u4e5f\u5fc5\u987b\u5728\u7f13\u51b2\u533a\u4ecd\u6709\u6548\u65f6\u5b8c\u6210\u4fdd\u5b58\u6216\u590d\u5236\u5230\u72ec\u7acb\u5185\u5b58\u3002<\/li>\n<\/ul>\n
          \u8fd9\u6761\u7ea6\u675f\u89e3\u91ca\u4e86\u4e3a\u4ec0\u4e48\u201c\u5c06\u5e27\u6307\u9488\u6392\u5230 UI \u7ebf\u7a0b\u4ee5\u540e\u518d\u5904\u7406\u201d\u662f\u4e0d\u6b63\u786e\u7684\u3002\u82e5\u540c\u6b65\u6d3e\u53d1\u5230 UI \u7ebf\u7a0b\uff0c\u91c7\u96c6\u56de\u8c03\u4f1a\u7b49 UI \u7ebf\u7a0b\u5b8c\u6210\u590d\u5236\uff1b\u82e5\u5f02\u6b65\u6d3e\u53d1\uff0c\u56de\u8c03\u53ef\u80fd\u5148\u8fd4\u56de\u5e76\u5f52\u8fd8\u7f13\u51b2\u533a\uff0cUI \u7ebf\u7a0b\u6536\u5230\u4efb\u52a1\u65f6\u6570\u636e\u5df2\u53d8\u6210\u4e0b\u4e00\u5e27\u3002\u4e24\u79cd\u65f6\u5e8f\u7684\u7ed3\u679c\u4e0d\u540c\uff0c\u5fc5\u987b\u9009\u62e9\u4e0e\u7f13\u51b2\u533a\u751f\u547d\u5468\u671f\u76f8\u7b26\u7684\u505a\u6cd5\u3002<\/p>\n
          6. \u8bbe\u5907\u6389\u7ebf\u4e0e\u91cd\u8fde\uff1a\u533a\u5206\u201c\u8bbe\u5907\u5931\u6548\u201d\u548c\u201c\u8bbe\u5907\u5217\u8868\u6539\u53d8\u201d<\/h2>\n
          \u5b9e\u65f6\u56fe\u50cf\u7a0b\u5e8f\u8fd8\u8981\u533a\u5206\u7269\u7406\u8bbe\u5907\u72b6\u6001\u4e0e\u89c6\u9891\u4fe1\u53f7\u72b6\u6001\u3002USB \u76f8\u673a\u88ab\u62d4\u51fa\u662f\u8bbe\u5907\u5931\u6548\uff1b\u6a21\u62df\u91c7\u96c6\u8bbe\u5907\u4ecd\u7136\u5728\u7ebf\u4f46\u65e0\u8f93\u5165\u4fe1\u53f7\uff0c\u5219\u5e94\u68c0\u67e5\u9a71\u52a8\u662f\u5426\u652f\u6301 signal detection\u3002\u8fd9\u4e24\u8005\u4e0d\u80fd\u7528\u540c\u4e00\u4e2a\u5e03\u5c14\u72b6\u6001\u6df7\u4e3a\u4e00\u8c08\u3002<\/p>\n
          IC Imaging Control \u7684 DeviceLost<\/code> \u7528\u4e8e\u5904\u7406\u8bbe\u5907\u5931\u6548\uff0cDeviceListChanged<\/code> \u7528\u4e8e\u53d1\u73b0\u53ef\u7528\u8bbe\u5907\u5217\u8868\u53d8\u5316\u3002\u91cd\u8fde\u65f6\u5e94\u6e05\u7406\u5931\u6548\u8bbe\u5907\u3001\u5728\u53ef\u7528\u8bbe\u5907\u4e2d\u6309\u5e8f\u5217\u53f7\u627e\u56de\u76ee\u6807\u76f8\u673a\uff0c\u5e76\u628a\u8bbe\u5907\u6253\u5f00\u548c\u91c7\u96c6\u6d41\u914d\u7f6e\u653e\u5230\u6b63\u786e\u7684 UI \u7ebf\u7a0b\u4e0a\u4e0b\u6587\u3002\u5faa\u73af\u91cd\u8bd5\u8fd8\u5e94\u53ef\u53d6\u6d88\uff0c\u5e76\u8bb0\u5f55\u65ad\u5f00\u3001\u91cd\u8bd5\u548c\u6062\u590d\u65f6\u523b\u3002<\/p>\n
          private void OnDeviceLost(object? sender, DeviceLostEventArgs e)\n{\n    IsConnected = false;\n    \/\/ \u505c\u6b62\u91c7\u96c6\uff0c\u5e76\u6309 IC Imaging Control \u6587\u6863\u6e05\u7a7a\u5931\u6548\u7684\u8bbe\u5907\u9009\u62e9\n    CloseDevice();\n    StartReconnect();\n}\n\nprivate void OnDeviceListChanged(object? sender, EventArgs e)\n{\n    if (!IsConnected && !IsReconnecting)\n        StartReconnect();\n}<\/code><\/pre>\n
          \u91cd\u8fde\u6210\u529f\u540e\u6062\u590d\u91c7\u96c6\u524d\uff0c\u786e\u8ba4\u76ee\u6807\u8bbe\u5907\u8eab\u4efd\u548c\u89c6\u9891\u683c\u5f0f\u3001\u901a\u9053\u3001\u5e27\u7387\u7b49\u8bbe\u7f6e\u3002\u4ec5\u6bd4\u8f83\u8bbe\u5907\u540d\u79f0\u53ef\u80fd\u4f1a\u8fde\u5230\u53e6\u4e00\u53f0\u540c\u578b\u53f7\u76f8\u673a\uff0c\u5e8f\u5217\u53f7\u66f4\u9002\u5408\u7528\u4e8e\u8bc6\u522b\u201c\u539f\u6765\u7684\u90a3\u4e00\u53f0\u201d\u3002<\/p>\n
          7. \u6293\u62cd\u4e5f\u8981\u9075\u5b88\u7f13\u51b2\u533a\u6709\u6548\u671f<\/h2>\n
          \u5b9e\u65f6\u9884\u89c8\u4f7f\u7528 FrameQueueSink<\/code> \u65f6\uff0c\u518d\u628a\u5f53\u524d sink \u5f3a\u5236\u8f6c\u6362\u6210 FrameSnapSink<\/code> \u4e0d\u4f1a\u5f97\u5230\u6709\u6548\u5bf9\u8c61\u3002\u4e00\u4e2a\u66f4\u5408\u9002\u7684\u6a21\u578b\u662f\uff1a\u6ce8\u518c\u4e00\u6b21\u6293\u62cd\u8bf7\u6c42\uff0c\u5728\u4e0b\u4e00\u5e27\u56de\u8c03\u91cc\u6d88\u8d39\u8bf7\u6c42\uff0c\u5e76\u5728\u7f13\u51b2\u533a\u5f52\u8fd8\u524d\u4fdd\u5b58\u8be5\u5e27\u3002\u8bf7\u6c42\u9700\u8981\u5177\u5907\u5355\u6b21\u6d88\u8d39\u8bed\u4e49\u3001\u8d85\u65f6\u548c\u5f02\u5e38\u65e5\u5fd7\uff1b\u56de\u8c03\u4e0d\u5e94\u541e\u6389\u78c1\u76d8\u9519\u8bef\u3002<\/p>\n
          \u5982\u679c\u7528\u6237\u771f\u6b63\u9700\u8981\u7684\u662f\u201c\u5f53\u524d\u663e\u793a\u7684\u753b\u9762\u201d\uff0c\u76f4\u63a5\u4ece\u5e94\u7528\u6301\u6709\u7684\u4f4d\u56fe\u4fdd\u5b58\uff1b\u5982\u679c\u9700\u8981\u201c\u8bf7\u6c42\u76f8\u673a\u7ed9\u6211\u4e00\u5f20\u65b0\u5e27\u201d\uff0c\u5219\u4ece\u5e27\u961f\u5217\u53d6\u4e0b\u4e00\u5e27\u3002\u660e\u786e\u8fd9\u4e24\u4e2a\u8bed\u4e49\uff0c\u624d\u80fd\u907f\u514d\u4fdd\u5b58\u5230\u65e7\u5e27\u6216\u9519\u8bef\u7684 sink\u3002<\/p>\n
          \u68c0\u67e5\u6e05\u5355<\/h2>\n
            \n
          1. AddDirtyRect<\/code> \u6807\u8bb0\u50cf\u7d20\u533a\u57df\uff1bInvalidateVisual<\/code> \u8bf7\u6c42\u89c6\u89c9\u5143\u7d20\u91cd\u65b0\u7ed8\u5236\uff0c\u804c\u8d23\u4e0d\u540c\u3002<\/li>\n
          2. \u5728\u521b\u5efa\u4f4d\u56fe\u7684 UI Dispatcher \u4e0a\u5b8c\u6210\u5f53\u524d\u73af\u5883\u8981\u6c42\u7684 WriteableBitmap<\/code> \u64cd\u4f5c\u3002<\/li>\n
          3. \u8ba9\u65b0\u5e27\u4e8b\u4ef6\u89e6\u53d1\u5fc5\u8981\u7684\u5143\u7d20\u5931\u6548\uff0c\u907f\u514d\u5e38\u9a7b\u5237\u65b0\u5b9a\u65f6\u5668\u3002<\/li>\n
          4. \u5728\u5e27\u56de\u8c03\u8fd4\u56de\u524d\u5b8c\u6210\u4f7f\u7528 sink \u7f13\u51b2\u533a\u7684\u64cd\u4f5c\u3002<\/li>\n
          5. \u8bbe\u5907\u91cd\u8fde\u4f7f\u7528\u8bbe\u5907\u5217\u8868\u53d8\u5316\u901a\u77e5\u3001\u5e8f\u5217\u53f7\u8bc6\u522b\u3001\u53ef\u53d6\u6d88\u7684\u91cd\u8bd5\u548c\u53ef\u8bfb\u65e5\u5fd7\u3002<\/li>\n
          6. \u5728\u53d1\u5e03\u6a21\u5f0f\u548c\u76ee\u6807\u786c\u4ef6\u4e0a\u6d4b\u91cf\uff0c\u4e0d\u628a\u8c03\u8bd5\u5668\u4e0b\u7684\u8868\u73b0\u5f53\u6210\u6700\u7ec8\u8bc1\u636e\u3002<\/li>\n<\/ol>\n
            AAO\uff01\u7ebf\u7d22\u90fd\u5bf9\u4e0a\u4e86\uff1a\u56fe\u50cf\u6570\u636e\u5199\u8fdb\u4f4d\u56fe\u3001WPF \u88ab\u8bf7\u6c42\u6e32\u67d3\u3001\u5e27\u7f13\u51b2\u5b89\u5168\u5f52\u8fd8\u2014\u2014\u4e09\u4ef6\u4e8b\u5404\u6709\u81ea\u5df1\u7684\u65f6\u673a\u3002\u628a\u5b83\u4eec\u62c6\u5f00\u89c2\u5bdf\uff0c\u5b9e\u65f6\u9884\u89c8\u7684\u8c1c\u9898\u5c31\u6ca1\u90a3\u4e48\u795e\u79d8\u5566\u3002<\/p>\n
            \u2014\u2014\u540d\u4fa6\u63a2\u6a58\u96ea\u8389<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u5927\u5bb6\u597d\uff0c\u6211\u662f\u540d\u4fa6\u63a2\u6a58\u96ea\u8389\uff01\u4eca\u5929\u8ffd\u8e2a\u7684\u7ebf\u7d22\u4e0d\u662f\u811a\u5370\uff0c\u800c\u662f\u4e00\u5e27\u56fe\u50cf\u4ece\u76f8\u673a\u4f20\u611f\u5668\u4e00\u8def\u5230 WPF \u5c4f\u5e55\u7684\u65c5\u7a0b […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[99,29],"tags":[5,58,63,36,84],"class_list":["post-528","post","type-post","status-publish","format-standard","hentry","category-99","category-29","tag-c","tag-wpf","tag-63","tag-36","tag-84"],"_links":{"self":[{"href":"https:\/\/6589jk.cn\/index.php\/wp-json\/wp\/v2\/posts\/528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/6589jk.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/6589jk.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/6589jk.cn\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/6589jk.cn\/index.php\/wp-json\/wp\/v2\/comments?post=528"}],"version-history":[{"count":1,"href":"https:\/\/6589jk.cn\/index.php\/wp-json\/wp\/v2\/posts\/528\/revisions"}],"predecessor-version":[{"id":529,"href":"https:\/\/6589jk.cn\/index.php\/wp-json\/wp\/v2\/posts\/528\/revisions\/529"}],"wp:attachment":[{"href":"https:\/\/6589jk.cn\/index.php\/wp-json\/wp\/v2\/media?parent=528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/6589jk.cn\/index.php\/wp-json\/wp\/v2\/categories?post=528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/6589jk.cn\/index.php\/wp-json\/wp\/v2\/tags?post=528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}