优化相机图像读取

IDHIKCamera/IDHIK.cs

@@ -426,20 +426,24 @@ namespace IDHIKCamera
             try
             {
                 int nRet = MvCodeReader.MV_CODEREADER_OK;
-                pData = IntPtr.Zero;
+                Thread.Sleep(50);
                 MvCodeReader.MV_CODEREADER_IMAGE_OUT_INFO_EX2 stFrameInfoEx2 = new MvCodeReader.MV_CODEREADER_IMAGE_OUT_INFO_EX2();
                 pstFrameInfoEx2 = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(MvCodeReader.MV_CODEREADER_IMAGE_OUT_INFO_EX2)));
                 Marshal.StructureToPtr(stFrameInfoEx2, pstFrameInfoEx2, false);
-                //Thread.Sleep(500);
-                nRet = cameraCurr[index].MV_CODEREADER_GetOneFrameTimeoutEx2_NET(ref pData, pstFrameInfoEx2, 3000);               
-                LibLogUtil.Info($"获取结果{nRet}");
-                if (nRet == MvCodeReader.MV_CODEREADER_OK)
+                for (int i = 0; i < 10; i++)
                 {
-                    stFrameInfoEx2 = (MvCodeReader.MV_CODEREADER_IMAGE_OUT_INFO_EX2)Marshal.PtrToStructure(pstFrameInfoEx2, typeof(MvCodeReader.MV_CODEREADER_IMAGE_OUT_INFO_EX2));
-                }
-                else
-                {
-                    LibLogUtil.Error($"结果不等于0，出错{nRet}");
+                    nRet = cameraCurr[index].MV_CODEREADER_GetOneFrameTimeoutEx2_NET(ref pData, pstFrameInfoEx2, 2000);
+                    if (nRet == MvCodeReader.MV_CODEREADER_OK)
+                    {
+
+                        stFrameInfoEx2 = (MvCodeReader.MV_CODEREADER_IMAGE_OUT_INFO_EX2)Marshal.PtrToStructure(pstFrameInfoEx2, typeof(MvCodeReader.MV_CODEREADER_IMAGE_OUT_INFO_EX2));
+                        break;
+                    }
+                    else
+                    {
+                        LibLogUtil.Error(" Can not grab one : "+ nRet);
+                        Thread.Sleep(100);
+                    }
                 }
                 List<Point[]> pts=new List<Point[]>();
                 if (nRet == MvCodeReader.MV_CODEREADER_OK)