Fix Issue (#112 )

Fix Issue (#112 )

Author: yanjinhuagood

src/WPFDevelopers.Shared/Controls/ScreenCut/ScreenCaptureExt.cs

@@ -53,13 +53,13 @@ private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref b
             switch (msg)
             {
                 case Helper.WM_USER:
-                    GetClipboard();
                     Close();
+                    GetClipboard();
                     break;
                 case Helper.MY_MESSAGE:
+                    Close();
                     if (SnapCanceled != null) 
                         SnapCanceled();
-                    Close();
                     break;
             }
             return IntPtr.Zero;