优化菜单

Windows/CS/Framework4.0/Toprie/Toprie/Camera.cs

@@ -351,10 +351,10 @@ namespace JoyD.Windows.CS.Toprie
                 _imageBuffer = new Bitmap(BUFFER_WIDTH, BUFFER_HEIGHT);
                 Console.WriteLine($"图像缓冲区已初始化: {BUFFER_WIDTH}x{BUFFER_HEIGHT}");
                 
-                // 初始化缓冲区为透明背景
+                // 初始化缓冲区为黑色背景
                 using (Graphics g = Graphics.FromImage(_imageBuffer))
                 {   
-                    g.Clear(Color.Transparent);
+                    g.Clear(Color.Black);
                 }
                 
                 // 初始化InfoImage为透明bitmap
@@ -710,8 +710,8 @@ namespace JoyD.Windows.CS.Toprie
                 {   
                     using (Graphics g = Graphics.FromImage(_imageBuffer))
                     {   
-                        // 清除缓冲区背景为透明色
-                        g.Clear(Color.Transparent);
+                        // 清除缓冲区背景为黑色
+                        g.Clear(Color.Black);
                         
                         // 步骤1：先将LastImage绘制到全局缓冲
                         if (lastImage != null)
@@ -1195,7 +1195,7 @@ namespace JoyD.Windows.CS.Toprie
                     toolStripSeparator1.Visible = true;
                     
                     // 根据当前图像模式控制色彩模式菜单的可见性
-                    colorModeToolStripMenuItem.Visible = _deviceManager.CurrentImageMode == ImageMode.Infrared;
+                    colorModeToolStripMenuItem.Visible = true;
                     // 清除视频模式菜单项的选中状态
                     thermalModeToolStripMenuItem.Checked = false;
                     visibleModeToolStripMenuItem.Checked = false;