* UIListBox, UIImageListBox： 防止闪烁

SunnyUI/Controls/UIImageListBox.cs

@@ -362,6 +362,21 @@ namespace Sunny.UI
                 }
             }
 
+            protected override void WndProc(ref Message m)
+            {
+                if (IsDisposed || Disposing) return;
+                if (IsHandleCreated)
+                {
+                    if (m.Msg == Win32.User.WM_ERASEBKGND)
+                    {
+                        m.Result = IntPtr.Zero;
+                        return;
+                    }
+                }
+
+                base.WndProc(ref m);
+            }
+
             public ImageListBox()
             {
                 SetStyle(ControlStyles.AllPaintingInWmPaint, true);

SunnyUI/Controls/UIListBox.cs

@@ -523,6 +523,12 @@ namespace Sunny.UI
                 {
                     ItemsInsert?.Invoke(this, EventArgs.Empty);
                 }
+
+                if (m.Msg == Win32.User.WM_ERASEBKGND)
+                {
+                    m.Result = IntPtr.Zero;
+                    return;
+                }
             }
 
             base.WndProc(ref m);