C#编程-130：Brush的五个继承类_c# brush

作者：寸_铁 | 2024-06-30 20:09:06

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c# brush

Brush笔刷类，可以用颜色和图像填充图形，是 抽象类，不可以实例化。

实例：

1、SolidBrushTest

2、 TextureBrushTest

using System;
using System.Drawing;
using System.Windows.Forms;
using System.IO;
namespace TextureBrushTest
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
string path = @"D:\CS\GDIPlusTest\TextureBrushTest\img\微信图片_20170817213231.jpg";
Graphics g=e.Graphics;
if (File.Exists(path))
{
Bitmap map = new Bitmap(path);
Brush brush = new TextureBrush(map);
g.FillEllipse(brush, 10, 10, 500, 500);
brush.Dispose();
}
else
{
MessageBox.Show("image is not exists");
}
g.Dispose();
}
}
}

3、LinearGradientBrushTest

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
namespace LinearGradientBrushTest
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
LinearGradientBrush lgb = new LinearGradientBrush(new Point(10,10),new Point(290,90),Color.White,Color.FromArgb(255,0,0,0));
g.FillEllipse(lgb,10,10,280,120);
lgb.Dispose();
g.Dispose();
}
}
}

4、 PathGradientBrushTest

5、 HatchBrushTest

using System.Drawing;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
namespace HatchBrushTest
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
HatchBrush hatchBrush = new HatchBrush(HatchStyle.HorizontalBrick,Color.Red,Color.Yellow);
e.Graphics.FillEllipse(hatchBrush,0,80,240,120);
hatchBrush.Dispose();
}
}
}

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