调用API
using System.Runtime.InteropServices;
[DllImport("user32.dll")]
public static extern bool ReleaseCapture();
[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, System.Windows.Forms.MouseEventArgs e)
{
ReleaseCapture();
SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);
}
拖动窗体
本文介绍了一个简单的C#应用程序,该程序允许用户通过鼠标点击并拖动来移动窗口位置。使用了.NET Framework的PInvoke特性调用Windows API函数ReleaseCapture()和SendMessage()实现窗口的自由拖拽。

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