添加项目文件。

2026-08-04 18:36:40 +08:00
parent 16fb9e4f5a
commit a2ecbc795d
616 changed files with 149853 additions and 0 deletions
@@ -0,0 +1,55 @@
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace JinYuan.ControlLib
+{
+    public partial class PanelEnhanced : Panel
+    {
+        public PanelEnhanced()
+        {
+            InitializeComponent();
+            //设置控件样式，去除缓冲
+            this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
+            this.SetStyle(ControlStyles.DoubleBuffer, true);
+            this.SetStyle(ControlStyles.ResizeRedraw, true);
+            this.SetStyle(ControlStyles.Selectable, true);
+            this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
+        }
+
+        protected override void OnPaintBackground(PaintEventArgs e)
+        {
+            //重载基类得背景擦除方法
+
+            //解决窗体刷新，放大和闪烁
+
+            return;
+        }
+
+        protected override void OnPaint(PaintEventArgs e)
+        {
+            //使用双缓冲
+            this.DoubleBuffered = true;
+
+            if (this.BackgroundImage != null)
+            {
+                e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
+
+                e.Graphics.DrawImage(this.BackgroundImage, new Rectangle
+                    (0, 0, this.Width, this.Height), 0, 0, this.BackgroundImage.Width, this.BackgroundImage.Height, GraphicsUnit.Pixel);
+            }
+            base.OnPaint(e);
+        }
+
+        #region 减少闪烁
+        protected override CreateParams CreateParams
+        {
+            get
+            {
+                CreateParams cp = base.CreateParams;
+                cp.ExStyle |= 0x02000000;
+                return cp;
+            }
+        }
+        #endregion
+    }
+}