add:截图功能

Ink Canvas/MainWindow_cs/MW_Screenshot.cs

@@ -2,8 +2,12 @@ using System;
 using System.Drawing;
 using System.Drawing.Imaging;
 using System.IO;
+using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Forms;
+using System.Windows.Media.Imaging;
+using Ink_Canvas.Helpers;
+using Clipboard = System.Windows.Clipboard;
 
 namespace Ink_Canvas {
     public partial class MainWindow : Window {
@@ -71,14 +75,94 @@ namespace Ink_Canvas {
         private string GetDefaultFolderPath() {
             var basePath = Settings.Automation.AutoSavedStrokesLocation;
             var screenshotsFolder = Path.Combine(basePath, "Auto Saved - Screenshots");
-            
+
             if (!Directory.Exists(screenshotsFolder)) {
                 Directory.CreateDirectory(screenshotsFolder);
             }
-            
+
             return Path.Combine(
-                screenshotsFolder, 
+                screenshotsFolder,
                 $"{DateTime.Now:yyyy-MM-dd_HH-mm-ss}.png");
         }
+
+        // 截图并复制到剪贴板
+        private async Task CaptureScreenshotToClipboard() {
+            try {
+                // 隐藏主窗口以避免截图包含窗口本身
+                var originalVisibility = this.Visibility;
+                this.Visibility = Visibility.Hidden;
+
+                // 等待窗口隐藏
+                await Task.Delay(200);
+
+                var rc = SystemInformation.VirtualScreen;
+                using (var bitmap = new Bitmap(rc.Width, rc.Height, PixelFormat.Format32bppArgb))
+                using (var memoryGraphics = Graphics.FromImage(bitmap)) {
+                    memoryGraphics.CopyFromScreen(rc.X, rc.Y, 0, 0, rc.Size, CopyPixelOperation.SourceCopy);
+
+                    // 将截图复制到剪贴板
+                    CopyBitmapToClipboard(bitmap);
+
+                    // 恢复窗口显示
+                    this.Visibility = originalVisibility;
+
+                    // 等待窗口完全显示后自动粘贴
+                    await Task.Delay(100);
+                    await AutoPasteScreenshot();
+                }
+            }
+            catch (Exception ex) {
+                ShowNotification($"截图失败: {ex.Message}");
+                this.Visibility = Visibility.Visible;
+            }
+        }
+
+        // 自动粘贴截图到画布
+        private async Task AutoPasteScreenshot() {
+            try {
+                // 只在白板模式下自动粘贴
+                if (currentMode == 1) {
+                    await PasteImageFromClipboard();
+                    ShowNotification("截图已自动插入到画布");
+                } else {
+                    ShowNotification("截图已复制到剪贴板，可在白板模式下粘贴");
+                }
+            }
+            catch (Exception ex) {
+                ShowNotification($"自动粘贴截图失败: {ex.Message}");
+                LogHelper.WriteLogToFile($"自动粘贴截图失败: {ex.Message}", LogHelper.LogType.Error);
+            }
+        }
+
+        // 将Bitmap复制到剪贴板
+        private void CopyBitmapToClipboard(Bitmap bitmap) {
+            try {
+                // 将System.Drawing.Bitmap转换为WPF BitmapSource
+                var bitmapSource = ConvertBitmapToBitmapSource(bitmap);
+
+                // 复制到剪贴板
+                Clipboard.SetImage(bitmapSource);
+            }
+            catch (Exception ex) {
+                ShowNotification($"复制到剪贴板失败: {ex.Message}");
+            }
+        }
+
+        // 将System.Drawing.Bitmap转换为WPF BitmapSource
+        private BitmapSource ConvertBitmapToBitmapSource(Bitmap bitmap) {
+            using (var memory = new MemoryStream()) {
+                bitmap.Save(memory, ImageFormat.Png);
+                memory.Position = 0;
+
+                var bitmapImage = new BitmapImage();
+                bitmapImage.BeginInit();
+                bitmapImage.StreamSource = memory;
+                bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
+                bitmapImage.EndInit();
+                bitmapImage.Freeze();
+
+                return bitmapImage;
+            }
+        }
     }
 }