C#实现绘制鼠标的示例代码
芝麻粒儿 人气:0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); } }
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