using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace 手动改变自制窗体的大小 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } public static int Example_X = 0; public static int Example_Y = 0; public static int Example_W = 0; public static Point CPoint; #region 利用窗体上的控件移动窗体 /// <summary> /// 利用控件移动窗体 /// </summary> /// <param Frm="Form">窗体</param> /// <param e="MouseEventArgs">控件的移动事件</param> public void FrmMove(Form Frm, MouseEventArgs e) //Form或MouseEventArgs添加命名空间using System.Windows.Forms; { if (e.Button == MouseButtons.Left) { Point myPosittion = Control.MousePosition;//获取当前鼠标的屏幕坐标 myPosittion.Offset(CPoint.X, CPoint.Y);//重载当前鼠标的位置 Frm.DesktopLocation = myPosittion;//设置当前窗体在屏幕上的位置 } } #endregion #region 获取鼠标的当前位置 /// <summary> /// 获取鼠标的当前位置 /// </summary> /// <param Frm="Form">窗体</param> /// <param e="MouseEventArgs">窗体上有关鼠标的一些信息</param> public void FrmScreen_SizeInfo(Form Frm, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { Example_X = e.X; Example_Y = e.Y; Example_W = Frm.Width; } } #endregion #region 改变窗体的大小(用于鼠标的移动事件) /// <summary> /// 改变窗体的大小(用于鼠标的移动事件) /// </summary> /// <param Frm="Form">窗体</param> /// <param Pan="Panel">设置窗体边框的控件</param> /// <param e="MouseEventArgs">窗体上有关鼠标的一些信息</param> public void FrmScreen_EnlargeSize(Form Frm, Panel Pan, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { switch (Pan.Name) { case "panel_Right": //如果移动的是窗体的右边框 { if (this.Width <= 70) //如果窗体的宽度小于等于70 { Frm.Width = 70; //设置窗体的宽度为70 //如果用鼠标向右移动窗体的右边框 if (Cursor.Position.X - Frm.Left + (Pan.Width - Example_X) > Frm.Width) { //根据鼠标的移动值，，增加窗体的宽度 Frm.Width = Cursor.Position.X - Frm.Left + (Pan.Width - Example_X); } break; } //根据鼠标的移动值，增加窗体的宽度 Frm.Width = Cursor.Position.X - Frm.Left + (Pan.Width - Example_X); break; } case "panel_BR": //如果移动的是窗体的右下角 { //如果窗体的大小不为窗体大小的最小值 if (this.Width > 70 && this.Height > (panel_Title.Height + panel_Bn.Height + 1)) { //根据鼠标的移动改变窗体的大小 Frm.Height = Cursor.Position.Y - Frm.Top + (Pan.Height - Example_Y); Frm.Width = Cursor.Position.X - Frm.Left + (Pan.Width - Example_X); } else { if (this.Width <= 70) //如果窗体的宽度小于等于最小值 { Frm.Width = 70; //设置窗体的宽度为70 if (this.Height <= (panel_Title.Height + panel_Bn.Height + 1))//如果窗体的高小于最小值 { Frm.Height = panel_Title.Height + panel_Bn.Height + 1;//设置窗体的最小高度 //如果用鼠标向下移动窗体的底边框 if (Cursor.Position.Y - Frm.Top + (Pan.Height - Example_Y) > Frm.Height) { //根据鼠标的移动值，增加窗体的高度 Frm.Height = Cursor.Position.Y - Frm.Top + (Pan.Height - Example_Y); } break; } //如果用鼠标向右移动窗体 if (Cursor.Position.X - Frm.Left + (Pan.Width - Example_X) > Frm.Width) { //增加窗体的宽度 Frm.Width = Cursor.Position.X - Frm.Left + (Pan.Width - Example_X); } break; } if (this.Height <= (panel_Title.Height + panel_Bn.Height + 1))//如果窗体的高度小于等于最小值 { Frm.Height = panel_Title.Height + panel_Bn.Height + 1;//设置窗体的高度为最小值 Frm.Width = Cursor.Position.X - Frm.Left + (Pan.Width - Example_X);//改变窗体的宽度 //如果用鼠标向下移动窗体的边框 if (Cursor.Position.Y - Frm.Top + (Pan.Height - Example_Y) > Frm.Height) { Frm.Height = Cursor.Position.Y - Frm.Top + (Pan.Height - Example_Y);//增加窗体的高度 } break; } } break; } case "panel_Bn"://如果移动的是窗体的底边框 { if (this.Height <= (panel_Title.Height + panel_Bn.Height + 1))//如果窗体的高度小于等于最小值 { Frm.Height = panel_Title.Height + panel_Bn.Height + 1;//设置窗体的高度为最小值 //如果用鼠标向下移动窗体的下边框 if (Cursor.Position.Y - Frm.Top + (Pan.Height - Example_Y) > Frm.Height) { Frm.Height = Cursor.Position.Y - Frm.Top + (Pan.Height - Example_Y); //增加窗体的高度 } break; } Frm.Height = Cursor.Position.Y - Frm.Top + (Pan.Height - Example_Y); //增加窗体的高度 break; } } } } #endregion private void panel_Right_MouseDown(object sender, MouseEventArgs e) { FrmScreen_SizeInfo(this, e);//获取鼠标的当前位置 } private void panel_Right_MouseMove(object sender, MouseEventArgs e) { FrmScreen_EnlargeSize(this, (Panel)sender, e);//改变窗体的大小 } private void pictureBox1_Click(object sender, EventArgs e) { this.Close(); } private void panel_TitL_MouseDown(object sender, MouseEventArgs e) { int Tem_X = -e.X; if (Convert.ToInt16(((Panel)sender).Tag.ToString()) == 2)//如果移动的是标题栏的中间部分 Tem_X = -e.X - panel_TitL.Width; if (Convert.ToInt16(((Panel)sender).Tag.ToString()) == 3)//如果移动的是标题栏的尾端 Tem_X = -(this.Width - ((Panel)sender).Width) - e.X; CPoint = new Point(Tem_X, -e.Y); } private void panel_TitL_MouseMove(object sender, MouseEventArgs e) { FrmMove(this, e); } } }