2021-09-27

poerin · Sep 26, 2021 · 55a6393 · 55a6393
1 parent ae6bbdc
commit 55a6393
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Showing 2 changed files with 10 additions and 3 deletions.
diff --git a/Stroke/Draw.cs b/Stroke/Draw.cs
@@ -25,6 +25,13 @@ public void DrawPath(Point start, Point end)
             API.LineTo(canvas, end.X - rect.Left, end.Y - rect.Top);
         }
 
+        public void Clear()
+        {
+            API.RECT rect;
+            API.GetWindowRect(client, out rect);
+            API.InvalidateRect(client, ref rect, true);
+        }
+
         public void Dispose()
         {
             API.ReleaseDC(client, canvas);

diff --git a/Stroke/Stroke.cs b/Stroke/Stroke.cs
@@ -9,7 +9,7 @@
 
 namespace Stroke
 {
-    public partial class Stroke : Form
+    public class Stroke : Form
     {
         private Draw draw;
         private bool stroking = false;
@@ -99,6 +99,8 @@ private bool MouseHook_MouseAction(MouseHook.MouseActionArgs args)
                 else if (args.MouseButtonState == MouseHook.MouseButtonStates.Up)
                 {
                     stroking = false;
+                    draw.Clear();
+                    Refresh();
                     Visible = false;
                     TopMost = false;
 
@@ -116,8 +118,6 @@ private bool MouseHook_MouseAction(MouseHook.MouseActionArgs args)
                         return true;
                     }
 
-                    Refresh();
-
                     if (stroked)
                     {
                         Gesture gesture = new Gesture("", drwaingPoints);