[System.Runtime.InteropServices.DllImport("user32.dll")]
public static extern bool ReleaseCapture();
[System.Runtime.InteropServices.DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);
public const int WM_SYSCOMMAND = 0x0112;
public const int SC_MOVE = 0xF010;
public const int HTCAPTION = 0x0002;
private void Form1_MouseDown(object sender, MouseEventArgs e)
{
try
{
ReleaseCapture();
SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);
}
catch
{
}
}
另外一种方法:

本文介绍了如何利用C#编程语言,通过Windows API来实现窗体的拖动功能,允许用户通过点击窗体任意位置来移动窗口。
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