From 444c62efe4b2cf4894187c1b1f4b86098a0a795a Mon Sep 17 00:00:00 2001
From: zqm <zqm@example.com>
Date: Thu, 30 Oct 2025 15:01:57 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96=E5=9B=BE=E5=83=8F=E8=B5=84?=
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---
 .../CS/Framework4.0/Toprie/Toprie/Camera.cs   | 69 +++++++++++++++----
 1 file changed, 55 insertions(+), 14 deletions(-)

diff --git a/Windows/CS/Framework4.0/Toprie/Toprie/Camera.cs b/Windows/CS/Framework4.0/Toprie/Toprie/Camera.cs
index c008239..43ec5fe 100644
--- a/Windows/CS/Framework4.0/Toprie/Toprie/Camera.cs
+++ b/Windows/CS/Framework4.0/Toprie/Toprie/Camera.cs
@@ -353,27 +353,61 @@ namespace JoyD.Windows.CS.Toprie
         }
         
         /// <summary>
-        /// 初始化图像缓冲区
+        /// 初始化图像缓冲区和相关图像资源
         /// </summary>
         private void InitializeImageBuffer()
         {   
             try
             {   
-                // 创建512*384大小的bitmap作为图像缓冲区
+                // 创建512*384大小的透明bitmap作为图像缓冲区
                 _imageBuffer = new Bitmap(BUFFER_WIDTH, BUFFER_HEIGHT);
                 Console.WriteLine($"图像缓冲区已初始化: {BUFFER_WIDTH}x{BUFFER_HEIGHT}");
                 
-                // 初始化缓冲区为黑色背景
+                // 初始化缓冲区为透明背景
                 using (Graphics g = Graphics.FromImage(_imageBuffer))
                 {   
-                    g.Clear(Color.Black);
+                    g.Clear(Color.Transparent);
+                }
+                
+                // 初始化InfoImage为透明bitmap
+                lock (_infoImageLock)
+                {   
+                    _infoImage = new Bitmap(BUFFER_WIDTH, BUFFER_HEIGHT);
+                    using (Graphics g = Graphics.FromImage(_infoImage))
+                    {   
+                        g.Clear(Color.Transparent);
+                    }
+                    Console.WriteLine("InfoImage已初始化为透明bitmap");
+                }
+                
+                // 初始化图像框的bitmap为透明
+                if (imageBox != null && !imageBox.IsDisposed)
+                {   
+                    imageBox.Image = new Bitmap(BUFFER_WIDTH, BUFFER_HEIGHT);
+                    using (Graphics g = Graphics.FromImage(imageBox.Image))
+                    {   
+                        g.Clear(Color.Transparent);
+                    }
+                    Console.WriteLine("图像框bitmap已初始化为透明");
                 }
             }
             catch (Exception ex)
             {   
-                Console.WriteLine($"初始化图像缓冲区失败: {ex.Message}");
-                // 如果初始化失败，确保_imageBuffer为null
-                _imageBuffer = null;
+                Console.WriteLine($"初始化图像资源失败: {ex.Message}");
+                // 发生异常时释放已创建的资源
+                if (_imageBuffer != null)
+                {   
+                    _imageBuffer.Dispose();
+                    _imageBuffer = null;
+                }
+                lock (_infoImageLock)
+                {   
+                    if (_infoImage != null)
+                    {   
+                        _infoImage.Dispose();
+                        _infoImage = null;
+                    }
+                }
             }
         }
         
@@ -581,15 +615,22 @@ namespace JoyD.Windows.CS.Toprie
                                 }
                                 
                                 // 按照用户要求：收到图像数据后，将图像保存到LastImage中
+                                // 不释放旧的LastImage，仅在控件Dispose时释放
                                 lock (_lastImageLock)
                                 {   
-                                    // 释放旧的LastImage资源
-                                    if (_lastImage != null)
+                                    // 如果是第一次设置LastImage，直接赋值
+                                    if (_lastImage == null)
                                     {   
-                                        try { _lastImage.Dispose(); } catch {}
+                                        _lastImage = newImage;
+                                    }
+                                    else
+                                    {   
+                                        // 后续更新时，使用临时变量保存新图像，然后替换引用
+                                        Image temp = newImage;
+                                        newImage = _lastImage;
+                                        _lastImage = temp;
+                                        // 注意：这里不Dispose旧图像，只在控件Dispose时统一释放
                                     }
-                                    // 设置新的LastImage
-                                    _lastImage = newImage;
                                 }
                                 
                                 // 按照用户要求：调用更新到UI
@@ -697,8 +738,8 @@ namespace JoyD.Windows.CS.Toprie
                 {   
                     using (Graphics g = Graphics.FromImage(_imageBuffer))
                     {   
-                        // 清除缓冲区背景为黑色
-                        g.Clear(Color.Black);
+                        // 清除缓冲区背景为透明色
+                        g.Clear(Color.Transparent);
                         
                         // 步骤1：先将LastImage绘制到全局缓冲
                         if (lastImage != null)