官网

http://www.hzhcontrols.com

前提

入行已经7,8年了，一直想做一套漂亮点的自定义控件，于是就有了本系列文章。

GitHub：https://github.com/kwwwvagaa/NetWinformControl

码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git

如果觉得写的还行，请点个 star 支持一下吧

欢迎前来交流探讨：企鹅群568015492

麻烦博客下方点个【推荐】，谢谢

NuGet

Install-Package HZH_Controls

用处及效果

可用作水泵，风机，涡轮等

准备工作

GDI+画的，不懂的可以自行百度一下

开始

添加2个枚举，分别控制进出风口的位置

   /// <summary>

     /// Enum BlowerEntranceDirection

     /// </summary>

     public enum BlowerEntranceDirection

     {

         /// <summary>

         /// The none

         /// </summary>

         None,

         /// <summary>

         /// The left

         /// </summary>

         Left,

         /// <summary>

         /// The right

         /// </summary>

         Right,

         /// <summary>

         /// Up

         /// </summary>

         Up

     }

     /// <summary>

     /// Enum BlowerExitDirection

     /// </summary>

     public enum BlowerExitDirection

     {

         /// <summary>

         /// The left

         /// </summary>

         Left,

         /// <summary>

         /// The right

         /// </summary>

         Right,

         /// <summary>

         /// Up

         /// </summary>

         Up

     }

属性

  /// <summary>

         /// The entrance direction

         /// </summary>

         private BlowerEntranceDirection entranceDirection = BlowerEntranceDirection.None;

         /// <summary>

         /// Gets or sets the entrance direction.

         /// </summary>

         /// <value>The entrance direction.</value>

         [Description("入口方向"), Category("自定义")]

         public BlowerEntranceDirection EntranceDirection

         {

             get { return entranceDirection; }

             set

             {

                 entranceDirection = value;

                 Refresh();

             }

         }

         /// <summary>

         /// The exit direction

         /// </summary>

         private BlowerExitDirection exitDirection = BlowerExitDirection.Right;

         /// <summary>

         /// Gets or sets the exit direction.

         /// </summary>

         /// <value>The exit direction.</value>

         [Description("出口方向"), Category("自定义")]

         public BlowerExitDirection ExitDirection

         {

             get { return exitDirection; }

             set

             {

                 exitDirection = value;

                 Refresh();

             }

         }

         /// <summary>

         /// The blower color

         /// </summary>

         private Color blowerColor = Color.FromArgb(, , );

         /// <summary>

         /// Gets or sets the color of the blower.

         /// </summary>

         /// <value>The color of the blower.</value>

         [Description("风机颜色"), Category("自定义")]

         public Color BlowerColor

         {

             get { return blowerColor; }

             set

             {

                 blowerColor = value;

                 Refresh();

             }

         }

         /// <summary>

         /// The fan color

         /// </summary>

         private Color fanColor = Color.FromArgb(, , );

         /// <summary>

         /// Gets or sets the color of the fan.

         /// </summary>

         /// <value>The color of the fan.</value>

         [Description("风叶颜色"), Category("自定义")]

         public Color FanColor

         {

             get { return fanColor; }

             set

             {

                 fanColor = value;

                 Refresh();

             }

         }

         /// <summary>

         /// The m rect working

         /// </summary>

         Rectangle m_rectWorking;

重绘

 protected override void OnPaint(PaintEventArgs e)

         {

             base.OnPaint(e);

             var g = e.Graphics;

             g.SetGDIHigh();

             GraphicsPath pathLineIn = new GraphicsPath();

             GraphicsPath pathLineOut = new GraphicsPath();

             int intLinePenWidth = ;

             switch (exitDirection)

             {

                 case BlowerExitDirection.Left:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(, m_rectWorking.Top, this.Width / , m_rectWorking.Height /  - ));

                     intLinePenWidth = m_rectWorking.Height /  - ;

                     pathLineOut.AddLine(new Point(-, m_rectWorking.Top + (m_rectWorking.Height /  - ) / ), new Point(m_rectWorking.Left + m_rectWorking.Width / , m_rectWorking.Top + (m_rectWorking.Height /  - ) / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(, m_rectWorking.Top - ), new Point(, m_rectWorking.Top + (m_rectWorking.Height /  - ) + ));

                     break;

                 case BlowerExitDirection.Right:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(this.Width / , m_rectWorking.Top, this.Width / , m_rectWorking.Height /  - ));

                     intLinePenWidth = m_rectWorking.Height /  - ;

                     pathLineOut.AddLine(new Point(this.Width + , m_rectWorking.Top + (m_rectWorking.Height /  - ) / ), new Point(m_rectWorking.Left + m_rectWorking.Width / , m_rectWorking.Top + (m_rectWorking.Height /  - ) / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(this.Width - , m_rectWorking.Top - ), new Point(this.Width - , m_rectWorking.Top + (m_rectWorking.Height /  - ) + ));

                     break;

                 case BlowerExitDirection.Up:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(m_rectWorking.Right - (m_rectWorking.Width /  - ), , m_rectWorking.Width /  - , this.Height / ));

                     intLinePenWidth = m_rectWorking.Width /  - ;

                     pathLineOut.AddLine(new Point(m_rectWorking.Right - (m_rectWorking.Width /  - ) / , -), new Point(m_rectWorking.Right - (m_rectWorking.Width /  - ) / , m_rectWorking.Top + m_rectWorking.Height / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(m_rectWorking.Right + , ), new Point(m_rectWorking.Right - (m_rectWorking.Width /  - ) - , ));

                     break;

             }

             switch (entranceDirection)

             {

                 case BlowerEntranceDirection.Left:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(, m_rectWorking.Bottom - m_rectWorking.Height /  + , this.Width / , m_rectWorking.Height /  - ));

                     pathLineIn.AddLine(new Point(-, m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) / ), new Point(m_rectWorking.Left + m_rectWorking.Width / , m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(, m_rectWorking.Bottom - m_rectWorking.Height /  +  - ), new Point(, m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) + ));

                     break;

                 case BlowerEntranceDirection.Right:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(this.Width / , m_rectWorking.Bottom - m_rectWorking.Height /  + , this.Width / , m_rectWorking.Height /  - ));

                     pathLineIn.AddLine(new Point(this.Width + , m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) / ), new Point(m_rectWorking.Left + m_rectWorking.Width / , m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(this.Width - , m_rectWorking.Bottom - m_rectWorking.Height /  +  - ), new Point(this.Width - , m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) + ));

                     break;

                 case BlowerEntranceDirection.Up:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(m_rectWorking.Left, , m_rectWorking.Width /  - , this.Height / ));

                     pathLineIn.AddLine(new Point(m_rectWorking.Left + (m_rectWorking.Width /  - ) / , -), new Point(m_rectWorking.Left + (m_rectWorking.Width /  - ) / , m_rectWorking.Top + m_rectWorking.Height / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(m_rectWorking.Left - , ), new Point(m_rectWorking.Left + (m_rectWorking.Width /  - ) + , ));

                     break;

             }

             //渐变色

             int _intPenWidth = intLinePenWidth;

             int intCount = _intPenWidth /  / ;

             for (int i = ; i < intCount; i++)

             {

                 int _penWidth = _intPenWidth /  -  * i;

                 if (_penWidth <= )

                     _penWidth = ;

                 if (entranceDirection != BlowerEntranceDirection.None)

                     g.DrawPath(new Pen(new SolidBrush(Color.FromArgb(, Color.White.R, Color.White.G, Color.White.B)), _penWidth), pathLineIn);

                 g.DrawPath(new Pen(new SolidBrush(Color.FromArgb(, Color.White.R, Color.White.G, Color.White.B)), _penWidth), pathLineOut);

                 if (_penWidth == )

                     break;

             }

             //底座

             GraphicsPath gpDZ = new GraphicsPath();

             gpDZ.AddLines(new Point[]

             {

                 new Point( m_rectWorking.Left+m_rectWorking.Width/,m_rectWorking.Top+m_rectWorking.Height/),

                 new Point(m_rectWorking.Left+,this.Height),

                 new Point(m_rectWorking.Right-,this.Height)

             });

             gpDZ.CloseAllFigures();

             g.FillPath(new SolidBrush(blowerColor), gpDZ);

             g.FillPath(new SolidBrush(Color.FromArgb(, Color.White)), gpDZ);

             g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(m_rectWorking.Left, this.Height - ), new Point(m_rectWorking.Right, this.Height - ));

             //中心

             g.FillEllipse(new SolidBrush(blowerColor), m_rectWorking);

             g.FillEllipse(new SolidBrush(Color.FromArgb(, Color.White)), m_rectWorking);

             //扇叶

             Rectangle _rect = new Rectangle(m_rectWorking.Left + (m_rectWorking.Width - (m_rectWorking.Width /  * )) / , m_rectWorking.Top + (m_rectWorking.Height - (m_rectWorking.Width /  * )) / , (m_rectWorking.Width /  * ), (m_rectWorking.Width /  * ));

             int _splitCount = ;

             float fltSplitValue = 360F / (float)_splitCount;

             for (int i = ; i <= _splitCount; i++)

             {

                 float fltAngle = (fltSplitValue * i - ) % ;

                 float fltY1 = (float)(_rect.Top + _rect.Width /  - ((_rect.Width / ) * Math.Sin(Math.PI * (fltAngle / 180.00F))));

                 float fltX1 = (float)(_rect.Left + (_rect.Width /  - ((_rect.Width / ) * Math.Cos(Math.PI * (fltAngle / 180.00F)))));

                 float fltY2 = ;

                 float fltX2 = ;

                 fltY2 = (float)(_rect.Top + _rect.Width /  - ((_rect.Width / ) * Math.Sin(Math.PI * (fltAngle / 180.00F))));

                 fltX2 = (float)(_rect.Left + (_rect.Width /  - ((_rect.Width / ) * Math.Cos(Math.PI * (fltAngle / 180.00F)))));

                 g.DrawLine(new Pen(new SolidBrush(fanColor), ), new PointF(fltX1, fltY1), new PointF(fltX2, fltY2));

             }

             g.FillEllipse(new SolidBrush(fanColor), new Rectangle(_rect.Left + _rect.Width /  - _rect.Width /  + , _rect.Top + _rect.Width /  - _rect.Width /  + , _rect.Width /  - , _rect.Width /  - ));

             g.FillEllipse(new SolidBrush(Color.FromArgb(, Color.White)), new Rectangle(_rect.Left - , _rect.Top - , _rect.Width + , _rect.Height + ));

         }

全部代码

 // ***********************************************************************

 // Assembly         : HZH_Controls

 // Created          : 2019-09-09

 //

 // ***********************************************************************

 // <copyright file="UCBlower.cs">

 //     Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com

 // </copyright>

 //

 // Blog: https://www.cnblogs.com/bfyx

 // GitHub：https://github.com/kwwwvagaa/NetWinformControl

 // gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git

 //

 // If you use this code, please keep this note.

 // ***********************************************************************

 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Text;

 using System.Windows.Forms;

 using System.Drawing;

 using System.Drawing.Drawing2D;

 using System.ComponentModel;

 namespace HZH_Controls.Controls

 {

     /// <summary>

     /// Class UCBlower.

     /// Implements the <see cref="System.Windows.Forms.UserControl" />

     /// </summary>

     /// <seealso cref="System.Windows.Forms.UserControl" />

     public class UCBlower : UserControl

     {

         /// <summary>

         /// The entrance direction

         /// </summary>

         private BlowerEntranceDirection entranceDirection = BlowerEntranceDirection.None;

         /// <summary>

         /// Gets or sets the entrance direction.

         /// </summary>

         /// <value>The entrance direction.</value>

         [Description("入口方向"), Category("自定义")]

         public BlowerEntranceDirection EntranceDirection

         {

             get { return entranceDirection; }

             set

             {

                 entranceDirection = value;

                 Refresh();

             }

         }

         /// <summary>

         /// The exit direction

         /// </summary>

         private BlowerExitDirection exitDirection = BlowerExitDirection.Right;

         /// <summary>

         /// Gets or sets the exit direction.

         /// </summary>

         /// <value>The exit direction.</value>

         [Description("出口方向"), Category("自定义")]

         public BlowerExitDirection ExitDirection

         {

             get { return exitDirection; }

             set

             {

                 exitDirection = value;

                 Refresh();

             }

         }

         /// <summary>

         /// The blower color

         /// </summary>

         private Color blowerColor = Color.FromArgb(, , );

         /// <summary>

         /// Gets or sets the color of the blower.

         /// </summary>

         /// <value>The color of the blower.</value>

         [Description("风机颜色"), Category("自定义")]

         public Color BlowerColor

         {

             get { return blowerColor; }

             set

             {

                 blowerColor = value;

                 Refresh();

             }

         }

         /// <summary>

         /// The fan color

         /// </summary>

         private Color fanColor = Color.FromArgb(, , );

         /// <summary>

         /// Gets or sets the color of the fan.

         /// </summary>

         /// <value>The color of the fan.</value>

         [Description("风叶颜色"), Category("自定义")]

         public Color FanColor

         {

             get { return fanColor; }

             set

             {

                 fanColor = value;

                 Refresh();

             }

         }

         /// <summary>

         /// The m rect working

         /// </summary>

         Rectangle m_rectWorking;

         /// <summary>

         /// Initializes a new instance of the <see cref="UCBlower"/> class.

         /// </summary>

         public UCBlower()

         {

             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);

             this.SetStyle(ControlStyles.UserPaint, true);

             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;

             this.SizeChanged += UCBlower_SizeChanged;

             this.Size = new Size(, );

         }

         /// <summary>

         /// Handles the SizeChanged event of the UCBlower control.

         /// </summary>

         /// <param name="sender">The source of the event.</param>

         /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>

         void UCBlower_SizeChanged(object sender, EventArgs e)

         {

             int intMin = Math.Min(this.Width, this.Height);

             m_rectWorking = new Rectangle((this.Width - (intMin /  * )) / , (this.Height - (intMin /  * )) / , (intMin /  * ), (intMin /  * ));

         }

         /// <summary>

         /// 引发 <see cref="E:System.Windows.Forms.Control.Paint" /> 事件。

         /// </summary>

         /// <param name="e">包含事件数据的 <see cref="T:System.Windows.Forms.PaintEventArgs" />。</param>

         protected override void OnPaint(PaintEventArgs e)

         {

             base.OnPaint(e);

             var g = e.Graphics;

             g.SetGDIHigh();

             GraphicsPath pathLineIn = new GraphicsPath();

             GraphicsPath pathLineOut = new GraphicsPath();

             int intLinePenWidth = ;

             switch (exitDirection)

             {

                 case BlowerExitDirection.Left:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(, m_rectWorking.Top, this.Width / , m_rectWorking.Height /  - ));

                     intLinePenWidth = m_rectWorking.Height /  - ;

                     pathLineOut.AddLine(new Point(-, m_rectWorking.Top + (m_rectWorking.Height /  - ) / ), new Point(m_rectWorking.Left + m_rectWorking.Width / , m_rectWorking.Top + (m_rectWorking.Height /  - ) / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(, m_rectWorking.Top - ), new Point(, m_rectWorking.Top + (m_rectWorking.Height /  - ) + ));

                     break;

                 case BlowerExitDirection.Right:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(this.Width / , m_rectWorking.Top, this.Width / , m_rectWorking.Height /  - ));

                     intLinePenWidth = m_rectWorking.Height /  - ;

                     pathLineOut.AddLine(new Point(this.Width + , m_rectWorking.Top + (m_rectWorking.Height /  - ) / ), new Point(m_rectWorking.Left + m_rectWorking.Width / , m_rectWorking.Top + (m_rectWorking.Height /  - ) / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(this.Width - , m_rectWorking.Top - ), new Point(this.Width - , m_rectWorking.Top + (m_rectWorking.Height /  - ) + ));

                     break;

                 case BlowerExitDirection.Up:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(m_rectWorking.Right - (m_rectWorking.Width /  - ), , m_rectWorking.Width /  - , this.Height / ));

                     intLinePenWidth = m_rectWorking.Width /  - ;

                     pathLineOut.AddLine(new Point(m_rectWorking.Right - (m_rectWorking.Width /  - ) / , -), new Point(m_rectWorking.Right - (m_rectWorking.Width /  - ) / , m_rectWorking.Top + m_rectWorking.Height / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(m_rectWorking.Right + , ), new Point(m_rectWorking.Right - (m_rectWorking.Width /  - ) - , ));

                     break;

             }

             switch (entranceDirection)

             {

                 case BlowerEntranceDirection.Left:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(, m_rectWorking.Bottom - m_rectWorking.Height /  + , this.Width / , m_rectWorking.Height /  - ));

                     pathLineIn.AddLine(new Point(-, m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) / ), new Point(m_rectWorking.Left + m_rectWorking.Width / , m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(, m_rectWorking.Bottom - m_rectWorking.Height /  +  - ), new Point(, m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) + ));

                     break;

                 case BlowerEntranceDirection.Right:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(this.Width / , m_rectWorking.Bottom - m_rectWorking.Height /  + , this.Width / , m_rectWorking.Height /  - ));

                     pathLineIn.AddLine(new Point(this.Width + , m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) / ), new Point(m_rectWorking.Left + m_rectWorking.Width / , m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(this.Width - , m_rectWorking.Bottom - m_rectWorking.Height /  +  - ), new Point(this.Width - , m_rectWorking.Bottom - m_rectWorking.Height /  +  + (m_rectWorking.Height /  - ) + ));

                     break;

                 case BlowerEntranceDirection.Up:

                     g.FillRectangle(new SolidBrush(blowerColor), new Rectangle(m_rectWorking.Left, , m_rectWorking.Width /  - , this.Height / ));

                     pathLineIn.AddLine(new Point(m_rectWorking.Left + (m_rectWorking.Width /  - ) / , -), new Point(m_rectWorking.Left + (m_rectWorking.Width /  - ) / , m_rectWorking.Top + m_rectWorking.Height / ));

                     g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(m_rectWorking.Left - , ), new Point(m_rectWorking.Left + (m_rectWorking.Width /  - ) + , ));

                     break;

             }

             //渐变色

             int _intPenWidth = intLinePenWidth;

             int intCount = _intPenWidth /  / ;

             for (int i = ; i < intCount; i++)

             {

                 int _penWidth = _intPenWidth /  -  * i;

                 if (_penWidth <= )

                     _penWidth = ;

                 if (entranceDirection != BlowerEntranceDirection.None)

                     g.DrawPath(new Pen(new SolidBrush(Color.FromArgb(, Color.White.R, Color.White.G, Color.White.B)), _penWidth), pathLineIn);

                 g.DrawPath(new Pen(new SolidBrush(Color.FromArgb(, Color.White.R, Color.White.G, Color.White.B)), _penWidth), pathLineOut);

                 if (_penWidth == )

                     break;

             }

             //底座

             GraphicsPath gpDZ = new GraphicsPath();

             gpDZ.AddLines(new Point[]

             {

                 new Point( m_rectWorking.Left+m_rectWorking.Width/,m_rectWorking.Top+m_rectWorking.Height/),

                 new Point(m_rectWorking.Left+,this.Height),

                 new Point(m_rectWorking.Right-,this.Height)

             });

             gpDZ.CloseAllFigures();

             g.FillPath(new SolidBrush(blowerColor), gpDZ);

             g.FillPath(new SolidBrush(Color.FromArgb(, Color.White)), gpDZ);

             g.DrawLine(new Pen(new SolidBrush(blowerColor), ), new Point(m_rectWorking.Left, this.Height - ), new Point(m_rectWorking.Right, this.Height - ));

             //中心

             g.FillEllipse(new SolidBrush(blowerColor), m_rectWorking);

             g.FillEllipse(new SolidBrush(Color.FromArgb(, Color.White)), m_rectWorking);

             //扇叶

             Rectangle _rect = new Rectangle(m_rectWorking.Left + (m_rectWorking.Width - (m_rectWorking.Width /  * )) / , m_rectWorking.Top + (m_rectWorking.Height - (m_rectWorking.Width /  * )) / , (m_rectWorking.Width /  * ), (m_rectWorking.Width /  * ));

             int _splitCount = ;

             float fltSplitValue = 360F / (float)_splitCount;

             for (int i = ; i <= _splitCount; i++)

             {

                 float fltAngle = (fltSplitValue * i - ) % ;

                 float fltY1 = (float)(_rect.Top + _rect.Width /  - ((_rect.Width / ) * Math.Sin(Math.PI * (fltAngle / 180.00F))));

                 float fltX1 = (float)(_rect.Left + (_rect.Width /  - ((_rect.Width / ) * Math.Cos(Math.PI * (fltAngle / 180.00F)))));

                 float fltY2 = ;

                 float fltX2 = ;

                 fltY2 = (float)(_rect.Top + _rect.Width /  - ((_rect.Width / ) * Math.Sin(Math.PI * (fltAngle / 180.00F))));

                 fltX2 = (float)(_rect.Left + (_rect.Width /  - ((_rect.Width / ) * Math.Cos(Math.PI * (fltAngle / 180.00F)))));

                 g.DrawLine(new Pen(new SolidBrush(fanColor), ), new PointF(fltX1, fltY1), new PointF(fltX2, fltY2));

             }

             g.FillEllipse(new SolidBrush(fanColor), new Rectangle(_rect.Left + _rect.Width /  - _rect.Width /  + , _rect.Top + _rect.Width /  - _rect.Width /  + , _rect.Width /  - , _rect.Width /  - ));

             g.FillEllipse(new SolidBrush(Color.FromArgb(, Color.White)), new Rectangle(_rect.Left - , _rect.Top - , _rect.Width + , _rect.Height + ));

         }

     }

     /// <summary>

     /// Enum BlowerEntranceDirection

     /// </summary>

     public enum BlowerEntranceDirection

     {

         /// <summary>

         /// The none

         /// </summary>

         None,

         /// <summary>

         /// The left

         /// </summary>

         Left,

         /// <summary>

         /// The right

         /// </summary>

         Right,

         /// <summary>

         /// Up

         /// </summary>

         Up

     }

     /// <summary>

     /// Enum BlowerExitDirection

     /// </summary>

     public enum BlowerExitDirection

     {

         /// <summary>

         /// The left

         /// </summary>

         Left,

         /// <summary>

         /// The right

         /// </summary>

         Right,

         /// <summary>

         /// Up

         /// </summary>

         Up

     }

 }

添加一个类UCBlower ，继承UserControl

最后的话

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（六十）c#Winform自定义控件-鼓风机（工业）

官网

前提

NuGet

目录

用处及效果

准备工作

开始

最后的话

（六十）c#Winform自定义控件-鼓风机（工业）的更多相关文章

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