支持通过网页增加、删除、修改摄像头配置信息

支持摄像头配置信息中句柄的设置，并实测有效

SHH.CameraSdk/Drivers/BaseVideoSource.cs

@@ -18,6 +18,13 @@ public abstract class BaseVideoSource : IVideoSource, IAsyncDisposable, IDeviceC
     private volatile bool _isPhysicalOnline;
     public bool IsPhysicalOnline => _isPhysicalOnline;
 
+    /// <summary>
+    /// 图像预处理配置（缩放、增量等）
+    /// 放置在基类中，确保所有接入协议（HIK/DH/RTSP）均可共享处理逻辑
+    /// </summary>
+    public PreprocessConfig PreprocessSettings { get; set; }
+        = new PreprocessConfig();
+
     string IDeviceConnectivity.IpAddress => _config.IpAddress;
 
     // 允许哨兵从外部更新 _isOnline 字段
@@ -240,6 +247,10 @@ public abstract class BaseVideoSource : IVideoSource, IAsyncDisposable, IDeviceC
             StreamType = source.StreamType,
             Transport = source.Transport,
             ConnectionTimeoutMs = source.ConnectionTimeoutMs,
+            MainboardIp = source.MainboardIp,
+            MainboardPort = source.MainboardPort,
+            RtspPath = source.RtspPath,
+            RenderHandle = source.RenderHandle,
             // Dictionary 深拷贝：防止外部修改影响内部
             VendorArguments = source.VendorArguments != null
                 ? new Dictionary<string, string>(source.VendorArguments)

SHH.CameraSdk/Drivers/HikVision/HikVideoSource.cs

@@ -228,7 +228,7 @@ public class HikVideoSource : BaseVideoSource
     {
         var previewInfo = new HikNativeMethods.NET_DVR_PREVIEWINFO
         {
-            hPlayWnd = IntPtr.Zero,
+            hPlayWnd = (IntPtr)_config.RenderHandle,
             lChannel = _config.ChannelIndex,
             dwStreamType = (uint)_config.StreamType,
             bBlocked = false