下面的代码实际的功能是拖动控件或窗体内容部分可实现窗口的移动效果。@VCOO

[csharp]using System.Runtime.InteropServices;

public partial class MainForm : Form
{

[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;

/// <summary>
/// 控件的MouseDown事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ShapedForm_MouseDown(object sender, MouseEventArgs e)
{
//拖动窗体
ReleaseCapture();
SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);
}

}[/csharp]