标签：style class blog code java http
第一种
音量调节的示例
#region 音量控制 private Point mouse_offset; private void pictureBox7_MouseDown(object sender, MouseEventArgs e) { mouse_offset = new Point(-e.X, -e.Y);// } private void pictureBox7_MouseMove(object sender, MouseEventArgs e) { ((Control)sender).Cursor = Cursors.Arrow;//设置拖动时鼠标箭头 if (e.Button == MouseButtons.Left) { Point mousePos = Control.MousePosition; mousePos.Offset(mouse_offset.X, mouse_offset.Y);//设置偏移 mousePos.Y = PointToScreen(pictureBox7.Location).Y; Point mouse_New = ((Control)sender).Parent.PointToClient(mousePos); if (mouse_New.X < panel1.Location.X ) { mouse_New.X = panel1.Location.X; } if (mouse_New.X > panel1.Width + panel1.Location.X) { mouse_New.X = panel1.Width+ panel1.Location.X ; } ((Control)sender).Location = mouse_New; panel2.Width = mouse_New.X-panel1.Location.X; } } #endregion
第二种
命名空间 using System.Runtime.InteropServices;
#region 窗体拖动
[DllImport("user32.dll")]
public
static extern bool ReleaseCapture();
[DllImport("user32.dll")]
public
static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int
lParam);
///
<summary>
///
pa_top事件
///
</summary>
///
<param name="sender"></param>
/// <param name="e"></param>
private void pa_top_MouseDown(object sender, MouseEventArgs e)
{
ReleaseCapture();
SendMessage(this.Handle, 0x0112, 0xF012, 0);
}
#endregion
两种方式 都可以实现窗体和控件的拖动
第二种方式更适合窗体拖动
标签：style class blog code java http
原文地址：http://www.cnblogs.com/zhaoqiangxiaoxiao/p/3781313.html
