窗体或控件的两种拖动方式
2020-12-13 02:47
标签：style class blog code java http 第一种 音量调节的示例 命名空间 using System.Runtime.InteropServices; #region 窗体拖动 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 窗体或控件的两种拖动方式,搜素材,soscw.com 窗体或控件的两种拖动方式 标签：style class blog code java http 原文地址：http://www.cnblogs.com/zhaoqiangxiaoxiao/p/3781313.html
#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
[DllImport("user32.dll")]
public
static extern bool ReleaseCapture();
[DllImport("user32.dll")]
public
static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int
lParam);
///
///
pa_top事件
///
///
///
private void pa_top_MouseDown(object sender, MouseEventArgs e)
{
ReleaseCapture();
SendMessage(this.Handle, 0x0112, 0xF012, 0);
}
#endregion