Fix : clear flickering artefacts when zooming on borders

reported in #132 (comment)
pubpub-zz · Aug 9, 2021 · 0be2c6d · 0be2c6d
1 parent 85e5615
commit 0be2c6d
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/FormCollection.cs b/src/FormCollection.cs
@@ -4153,6 +4153,8 @@ private void tiSlide_Tick(object sender, EventArgs e)
                 {
                     Point p = new Point(MousePosition.X - ZoomImage.Width / 2, MousePosition.Y - ZoomImage.Height / 2);
                     Size sz = new Size(ZoomImage.Width, ZoomImage.Height);
+
+                    g.Clear(Color.Black);
                     g.CopyFromScreen(p, Point.Empty, sz);
                     if (ZoomForm.pictureBox1.Visible)
                     {