Final revision

Signed-off-by: Lev Rusanov <30170278+JDM170@users.noreply.github.com>

ScreenCaptureForm.cs

@@ -5,7 +5,7 @@ using System.Windows.Forms;
 
 namespace ScreenCaptureApp
 {
-    public sealed class ScreenCaptureForm : Form
+    public partial class ScreenCaptureForm : Form
     {
         private Point _startPoint;
         private Point _endPoint;
@@ -46,7 +46,7 @@ namespace ScreenCaptureApp
                     Screen.PrimaryScreen.Bounds.Height,
                     PixelFormat.Format32bppArgb);
 
-                using (var g = Graphics.FromImage(_screenBitmap))
+                using (Graphics g = Graphics.FromImage(_screenBitmap))
                 {
                     g.CopyFromScreen(
                         Screen.PrimaryScreen.Bounds.X,
@@ -100,10 +100,9 @@ namespace ScreenCaptureApp
         {
             if (_isSelecting)
             {
-                var rect = GetSelectionRectangle();
+                Rectangle rect = GetSelectionRectangle();
                 e.Graphics.DrawRectangle(_selectionPen, rect);
 
-                // Перекрестие для точного выбора
                 e.Graphics.DrawLine(_selectionPen,
                     new Point(rect.X, rect.Y + rect.Height / 2),
                     new Point(rect.X + rect.Width, rect.Y + rect.Height / 2));
@@ -137,7 +136,7 @@ namespace ScreenCaptureApp
             {
                 CapturedImage = new Bitmap(_selectedRegion.Width, _selectedRegion.Height);
 
-                using (var g = Graphics.FromImage(CapturedImage))
+                using (Graphics g = Graphics.FromImage(CapturedImage))
                 {
                     g.DrawImage(_screenBitmap,
                         new Rectangle(0, 0, _selectedRegion.Width, _selectedRegion.Height),