C#实现绘制鼠标的示例代码

目录

• 实践过程
• 效果
• 代码

这篇文章主要为大家详细介绍了如何利用C#实现绘制鼠标的效果，文中的示例代码讲解详细，对我们学习C#有一定的帮助，感兴趣的小伙伴可以跟随小编一起了解一下

实践过程

效果

代码

public partial class Form1 : Form
   {
       public Form1()
       {
           InitializeComponent();
       }
 
       private int _X, _Y;
 
       [StructLayout(LayoutKind.Sequential)]
       private struct ICONINFO
       {
           public bool fIcon;
           public Int32 xHotspot;
           public Int32 yHotspot;
           public IntPtr hbmMask;
           public IntPtr hbmColor;
       }
 
       [StructLayout(LayoutKind.Sequential)]
       private struct CURSORINFO
       {
           public Int32 cbSize;
           public Int32 flags;
           public IntPtr hCursor;
           public Point ptScreenPos;
       }
 
       [DllImport("user32.dll", EntryPoint = "GetSystemMetrics")]
       private static extern int GetSystemMetrics(int mVal);
 
       [DllImport("user32.dll", EntryPoint = "GetCursorInfo")]
       private static extern bool GetCursorInfo(ref CURSORINFO cInfo);
 
       [DllImport("user32.dll", EntryPoint = "CopyIcon")]
       private static extern IntPtr CopyIcon(IntPtr hIcon);
 
       [DllImport("user32.dll", EntryPoint = "GetIconInfo")]
       private static extern bool GetIconInfo(IntPtr hIcon, out ICONINFO iInfo);
 
       private void Form1_Load(object sender, EventArgs e)
       {
       }
 
       private Bitmap CaptureCursor(ref int _CX, ref int _CY)
       {
           IntPtr _Icon;
           CURSORINFO _CursorInfo = new CURSORINFO();
           ICONINFO _IconInfo;
           _CursorInfo.cbSize = Marshal.SizeOf(_CursorInfo);
           if (GetCursorInfo(ref _CursorInfo))
           {
               if (_CursorInfo.flags == 0x00000001)
               {
                   _Icon = CopyIcon(_CursorInfo.hCursor);
 
                   if (GetIconInfo(_Icon, out _IconInfo))
                   {
                       _CX = _CursorInfo.ptScreenPos.X - _IconInfo.xHotspot;
                       _CY = _CursorInfo.ptScreenPos.Y - _IconInfo.yHotspot;
                       return Icon.FromHandle(_Icon).ToBitmap();
                   }
               }
           }
 
           return null;
       }
 
       private void button1_Click(object sender, EventArgs e)
       {
           int x = Control.MousePosition.X;
           int y = Control.MousePosition.Y;
           pictureBox1.Image = CaptureCursor(ref x, ref y);
       }
   }