C# Graphics.Clear()用法及代码示例

Graphics.Clear(color)方法用于清除画布并使用指定的背景颜色对其进行绘制。

用法： public void Clear (System.Drawing.Color color);

参数:

color: Color identifier which contains RGB values, to colour the background of canvas.

范例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：

范例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：

参考：

https://docs.microsoft.com/en-us/dotnet/api/system.drawing.graphics.clear?view=netframework-4.7.2

相关用法

注：本文由纯净天空筛选整理自ShivamChauhan5大神的英文原创作品 Graphics.Clear() Method in C# with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。