C#实现无标题栏窗体的拖动

• 标题栏区域封装在Panel容器内（推荐方案），则编写该Panel的MouseDown事件处理函数。

 

[DllImport("user32.dll", CharSet = CharSet.Unicode)]public static extern IntPtr SendMessage(IntPtr hwnd, int wMsg, IntPtr wParam, IntPtr lParam);[DllImport("user32.dll", CharSet = CharSet.Unicode)]public static extern bool ReleaseCapture();private void panelCaption_MouseDown(object sender, MouseEventArgs e){ const int WM_NCLBUTTONDOWN = 0x00A1; const int HTCAPTION = 2; if (e.Button == MouseButtons.Left) // 按下的是鼠标左键 { ReleaseCapture(); SendMessage(this.Handle, WM_NCLBUTTONDOWN, (IntPtr)HTCAPTION, IntPtr.Zero); // 拖动窗体 }}

 

• 标题栏区域直接放置在窗体上，则重写该窗体的OnMouseDown函数。