博客
关于我
c#透明panel
阅读量:411 次
发布时间:2019-03-06

本文共 1711 字,大约阅读时间需要 5 分钟。

先看下效果

纯透明的pane,然后设置一个半透明的图片,可以看出来显示了父控件的button

看代码

public partial class PanelEx : Panel    {        protected Graphics graphics;        protected override CreateParams CreateParams        {            get            {                CreateParams cp = base.CreateParams;                cp.ExStyle |= 0x00000020; // 实现透明样式                return cp;            }        }        public PanelEx()        {            InitializeComponent();            this.BackColor = Color.Transparent;            this.ForeColor = Color.Transparent;        }        protected override void OnPaintBackground(PaintEventArgs pevent)        {        }        protected override void OnPaint(PaintEventArgs e)        {            base.OnPaint(e);            this.graphics = e.Graphics;            this.graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;            this.graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;            this.graphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;            this.graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;            this.graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;            if (this.BackgroundImage != null)            {                int width = this.Width;                int height = this.Height;                Rectangle recModel = new Rectangle(0, 0, width, height);                this.graphics.DrawImage(this.BackgroundImage, recModel);            }            else if (this.ForeColor != Color.Transparent)            {                this.graphics.Clear(this.ForeColor);            }        }    }
View Code

 

转载地址:http://tnvkz.baihongyu.com/

你可能感兴趣的文章
mysql cmake 报错,MySQL云服务器应用及cmake报错解决办法
查看>>
Multiple websites on single instance of IIS
查看>>
mysql CONCAT()函数拼接有NULL
查看>>
multiprocessing.Manager 嵌套共享对象不适用于队列
查看>>
multiprocessing.pool.map 和带有两个参数的函数
查看>>
MYSQL CONCAT函数
查看>>
multiprocessing.Pool:map_async 和 imap 有什么区别?
查看>>
MySQL Connector/Net 句柄泄露
查看>>
multiprocessor(中)
查看>>
mysql CPU使用率过高的一次处理经历
查看>>
Multisim中555定时器使用技巧
查看>>
MySQL CRUD 数据表基础操作实战
查看>>
multisim变压器反馈式_穿过隔离栅供电:认识隔离式直流/ 直流偏置电源
查看>>
mysql csv import meets charset
查看>>
multivariate_normal TypeError: ufunc ‘add‘ output (typecode ‘O‘) could not be coerced to provided……
查看>>
MySQL DBA 数据库优化策略
查看>>
multi_index_container
查看>>
mutiplemap 总结
查看>>
MySQL Error Handling in Stored Procedures---转载
查看>>
MVC 区域功能
查看>>