C# 图形。C#中的 Clear()方法，示例

图形。C# 中的 Clear()方法，示例

原文:https://www . geeksforgeeks . org/graphics-clear-method-in-c-sharp-with-examples/

图形。清除(颜色)方法用于清除画布，并用指定的背景颜色将其绘制出来。

语法:公共虚空清除(系统。绘图.颜色颜色)； 参数: 颜色:包含 RGB 值的颜色标识符，给画布的背景上色。

例 1:

// C# snippet to print GeeksForGeeks
using System;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms;
namespace GFG {

class PrintableForm : Form {

    // Main Method
    public static void Main()
    {
        Application.Run(new PrintableForm());
    }
    public PrintableForm()
    {
        ResizeRedraw = true;
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        Font font = new Font("Arial", 16);
        SolidBrush brush = new SolidBrush(Color.Black);
        PointF point = new PointF(10.0F, 10.0F);
        e.Graphics.DrawString("GeeksForGeeks", font, brush, point);
    }
}
}

输出:

例 2:

// C# program to illustrate the Clear Method
// C# snippet to print GeeksForGeeks
using System;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms;
namespace GFG {

class PrintableForm : Form {

    // Main Method
    public static void Main()
    {
        Application.Run(new PrintableForm());
    }
    public PrintableForm()
    {
        ResizeRedraw = true;
    }

    protected override void
    OnPaint(PaintEventArgs e)
    {
        e.Graphics.Clear(Color.Coral);
    }
}
}

输出: