在练习中，感觉项目中如用上移动控件的方法会更好，于是自己写了一个：只是功能有限，需再完善。
1
using System;
2using System.Collections.Generic;
3using System.ComponentModel;
4using System.Data;
5using System.Drawing;
6using System.Text;
7using System.Windows.Forms;
8
9namespace scws_Repl
10
{
11
public partial class Form1 : Form
12
{
13 public Form1()
14 {
15 InitializeComponent();
16
}
17
18 设置成可拖动窗体 与mousemove事件冲突#region 设置成可拖动窗体 与mousemove事件冲突
19
20 //private const int WM_NCHITTEST = 0x84;
21 //private const int HTCLIENT = 0x1;
22 //private const int HTCAPTION = 0x2;
23
24 //protected override void WndProc(ref Message m)
25 //{
26 // switch (m.Msg)
27 // {
28 // case WM_NCHITTEST:
29 // base.WndProc(ref m);
30 // if ((int)m.Result == HTCLIENT)
31 // m.Result = (IntPtr)HTCAPTION;
32 // return;
33 // break;
34 // }
35 // base.WndProc(ref m);
36 //}
37 #endregion
38
39
40 private System.Drawing.Point mousePoint;
41 private System.Windows.Forms.Button mybutton = null;
42
43 private void button1_Click(object sender, EventArgs e)
44 {
45 mybutton = new Button();
46 this.Controls.Add(mybutton);
47 mybutton.Text = "newbutton";
48 mybutton.MouseDown += new MouseEventHandler(mybutton_MouseDown);
49 mybutton.MouseMove += new MouseEventHandler(mybutton_MouseMove);
50 mybutton.MouseUp += new MouseEventHandler(mybutton_MouseUp);
51 }
52
53
54 private void Form1_MouseMove(object sender, MouseEventArgs e)
55 {
56 this.mousePoint.X = e.X;
57 this.mousePoint.Y = e.Y;
58 this.linkLabel1.Text = "相对窗口 X：" + mousePoint.X.ToString();
59 this.linkLabel2.Text = "相对窗口 Y：" + mousePoint.Y.ToString();
60 this.Text = "相对屏幕 X：" + Cursor.Position.X.ToString() + " Y：" + Cursor.Position.Y.ToString();
61 }
62
63 /**//// <summary>
64 /// 记录鼠标位置
65 /// </summary>
66 private Point mousePos;
67 private int diffx, diffy;
68 /**//// <summary>
69 /// 记录是否可以移动
70 /// </summary>
71 private bool beginmove = false;
72
73 private void mybutton_MouseMove(object sender, MouseEventArgs e)
74 {
75 if (beginmove)
76 {
77 Button b1 = (Button)sender;
78 //
79 diffx = mousePos.X - e.X;
80 diffy = mousePos.Y - e.Y;
81 b1.Location = new Point(b1.Location.X - diffx, b1.Location.Y - diffy);
82
83 }
84 }
85
86 private void mybutton_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
87 {
88 beginmove = true;//开始移动
89 mousePos = new Point(e.X, e.Y);
90 }
91
92 private void mybutton_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
93 {
94 if (e.Button == MouseButtons.Left)
95 {
96 beginmove = false;
97 Button b1 = (Button)sender;
98 diffx = b1.Location.X - mousePos.X + e.X;
99 diffy = b1.Location.Y - mousePos.Y + e.Y;
100 this.linkLabel3.Text = b1.Text;
101 b1.BackColor = Color.Red;
102 this.linkLabel4.Text = b1.BackColor.ToString();
103 this.linkLabel5.Text = diffx.ToString();
104 this.linkLabel6.Text = diffy.ToString();
105 }
106 }
107 }
108
}
关于移动和拖动及缩放大小的代码如下：
1using System;
2using System.Collections.Generic;
3using System.ComponentModel;
4using System.Data;
5using System.Drawing;
6using System.Text;
7using System.Windows.Forms;
8
9namespace scws_Repl
10{
11 public partial class Form2 : Form
12 {
13 public Form2()
14 {
15 InitializeComponent();
16 }
17
18 private enum EnumMousePointPosition
19 {
20 MouseSizeNone = 0, //'无
21 MouseSizeRight = 1, //'拉伸右边框
22 MouseSizeLeft = 2, //'拉伸左边框
23 MouseSizeBottom = 3, //'拉伸下边框
24 MouseSizeTop = 4, //'拉伸上边框
25 MouseSizeTopLeft = 5, //'拉伸左上角
26 MouseSizeTopRight = 6, //'拉伸右上角
27 MouseSizeBottomLeft = 7, //'拉伸左下角
28 MouseSizeBottomRight = 8,//'拉伸右下角
29 MouseDrag = 9 // '鼠标拖动
30 }
31
32 //定义几个变量
33 const int Band = 5;
34 const int MinWidth = 10;
35 const int MinHeight = 10;
36 private EnumMousePointPosition m_MousePointPosition;
37 private Point p, p1;
38
39 //定义自己的MyMouseDown事件
40 private void MyMouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
41 {
42 p.X = e.X;
43 p.Y = e.Y; p1.X = e.X;
44 p1.Y = e.Y;
45 }
46
47 //定义自己的MyMouseLeave事件
48 private void MyMouseLeave(object sender, System.EventArgs e)
49 {
50 m_MousePointPosition = EnumMousePointPosition.MouseSizeNone;
51 this.Cursor = Cursors.Arrow;
52 }
53
54
55 //设计一个函数，确定光标在控件不同位置的样式
56 private EnumMousePointPosition MousePointPosition(Size size, System.Windows.Forms.MouseEventArgs e)
57 {
58 if ((e.X >= -1 * Band) | (e.X <= size.Width) | (e.Y >= -1 * Band) | (e.Y <= size.Height))
59 {
60 if (e.X < Band)
61 {
62 if (e.Y < Band) { return EnumMousePointPosition.MouseSizeTopLeft; }
63 else
64 {
65 if (e.Y > -1 * Band + size.Height)
66 { return EnumMousePointPosition.MouseSizeBottomLeft; }
67 else
68 { return EnumMousePointPosition.MouseSizeLeft; }
69 }
70 }
71 else
72 {
73 if (e.X > -1 * Band + size.Width)
74 {
75 if (e.Y < Band)
76 { return EnumMousePointPosition.MouseSizeTopRight; }
77 else
78 {
79 if (e.Y > -1 * Band + size.Height)
80 { return EnumMousePointPosition.MouseSizeBottomRight; }
81 else
82 { return EnumMousePointPosition.MouseSizeRight; }
83 }
84 }
85 else
86 {
87 if (e.Y < Band)
88 { return EnumMousePointPosition.MouseSizeTop; }
89 else
90 {
91 if (e.Y > -1 * Band + size.Height)
92 { return EnumMousePointPosition.MouseSizeBottom; }
93 else
94 { return EnumMousePointPosition.MouseDrag; }
95 }
96 }
97 }
98 }
99 else
100 { return EnumMousePointPosition.MouseSizeNone; }
101 }
102
103 //定义自己的MyMouseMove事件，在这个事件里，会使用上面设计的函数
104 private void MyMouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
105 {
106 Control lCtrl = (sender as Control);
107
108 if (e.Button == MouseButtons.Left)
109 {
110 switch (m_MousePointPosition)
111 {
112 case EnumMousePointPosition.MouseDrag:
113 lCtrl.Left = lCtrl.Left + e.X - p.X;
114 lCtrl.Top = lCtrl.Top + e.Y - p.Y;
115 break;
116 case EnumMousePointPosition.MouseSizeBottom:
117 lCtrl.Height = lCtrl.Height + e.Y - p1.Y;
118 p1.X = e.X;
119 p1.Y = e.Y; //'记录光标拖动的当前点
120 break;
121 case EnumMousePointPosition.MouseSizeBottomRight:
122 lCtrl.Width = lCtrl.Width + e.X - p1.X;
123 lCtrl.Height = lCtrl.Height + e.Y - p1.Y;
124 p1.X = e.X;
125 p1.Y = e.Y; //'记录光标拖动的当前点
126 break;
127 case EnumMousePointPosition.MouseSizeRight:
128 lCtrl.Width = lCtrl.Width + e.X - p1.X;
129 // lCtrl.Height = lCtrl.Height + e.Y - p1.Y;
130 p1.X = e.X;
131 p1.Y = e.Y; //'记录光标拖动的当前点
132 break;
133 case EnumMousePointPosition.MouseSizeTop:
134 lCtrl.Top = lCtrl.Top + (e.Y - p.Y);
135 lCtrl.Height = lCtrl.Height - (e.Y - p.Y);
136 break;
137 case EnumMousePointPosition.MouseSizeLeft:
138 lCtrl.Left = lCtrl.Left + e.X - p.X;
139 lCtrl.Width = lCtrl.Width - (e.X - p.X);
140 break;
141 case EnumMousePointPosition.MouseSizeBottomLeft:
142 lCtrl.Left = lCtrl.Left + e.X - p.X;
143 lCtrl.Width = lCtrl.Width - (e.X - p.X);
144 lCtrl.Height = lCtrl.Height + e.Y - p1.Y;
145 p1.X = e.X;
146 p1.Y = e.Y; //'记录光标拖动的当前点
147 break;
148 case EnumMousePointPosition.MouseSizeTopRight:
149 lCtrl.Top = lCtrl.Top + (e.Y - p.Y);
150 lCtrl.Width = lCtrl.Width + (e.X - p1.X);
151 lCtrl.Height = lCtrl.Height - (e.Y - p.Y);
152 p1.X = e.X;
153 p1.Y = e.Y; //'记录光标拖动的当前点
154 break;
155 case EnumMousePointPosition.MouseSizeTopLeft:
156 lCtrl.Left = lCtrl.Left + e.X - p.X;
157 lCtrl.Top = lCtrl.Top + (e.Y - p.Y);
158 lCtrl.Width = lCtrl.Width - (e.X - p.X);
159 lCtrl.Height = lCtrl.Height - (e.Y - p.Y);
160 break;
161 default:
162 break;
163 }
164 if (lCtrl.Width < MinWidth) lCtrl.Width = MinWidth;
165 if (lCtrl.Height < MinHeight) lCtrl.Height = MinHeight;
166
167 }
168 else
169 {
170 m_MousePointPosition = MousePointPosition(lCtrl.Size, e); //'判断光标的位置状态
171 switch (m_MousePointPosition) //'改变光标
172 {
173 case EnumMousePointPosition.MouseSizeNone:
174 this.Cursor = Cursors.Arrow; //'箭头
175 break;
176 case EnumMousePointPosition.MouseDrag:
177 this.Cursor = Cursors.SizeAll; //'四方向
178 break;
179 case EnumMousePointPosition.MouseSizeBottom:
180 this.Cursor = Cursors.SizeNS; //'南北
181 break;
182 case EnumMousePointPosition.MouseSizeTop:
183 this.Cursor = Cursors.SizeNS; //'南北
184 break;
185 case EnumMousePointPosition.MouseSizeLeft:
186 this.Cursor = Cursors.SizeWE; //'东西
187 break;
188 case EnumMousePointPosition.MouseSizeRight:
189 this.Cursor = Cursors.SizeWE; //'东西
190 break;
191 case EnumMousePointPosition.MouseSizeBottomLeft:
192 this.Cursor = Cursors.SizeNESW; //'东北到南西
193 break;
194 case EnumMousePointPosition.MouseSizeBottomRight:
195 this.Cursor = Cursors.SizeNWSE; //'东南到西北
196 break;
197 case EnumMousePointPosition.MouseSizeTopLeft:
198 this.Cursor = Cursors.SizeNWSE; //'东南到西北
199 break;
200 case EnumMousePointPosition.MouseSizeTopRight:
201 this.Cursor = Cursors.SizeNESW; //'东北到南西
202 break;
203 default:
204 break;
205 }
206 }
207 }
208
209
210 //制作一个初始化过程，将界面panel1上的所有控件都绑定MyMouseDown、MyMouseLeave、MyMouseMove事件，记得在Form初始化或者Form_Load时先执行它。
211 private void initProperty()
212 {
213 for (int i = 0; i < this.panel1.Controls.Count; i++)
214 {
215 this.panel1.Controls[i].MouseDown += new System.Windows.Forms.MouseEventHandler(MyMouseDown);
216 this.panel1.Controls[i].MouseLeave += new System.EventHandler(MyMouseLeave);
217 this.panel1.Controls[i].MouseMove += new System.Windows.Forms.MouseEventHandler(MyMouseMove);
218 }
219 }
220
221 private void Form2_Load(object sender, EventArgs e)
222 {
223 initProperty();
224 }
225 }
226}
