看看代码先
1 public partial class Demo3 : Form
2 {
3 private System.ComponentModel.IContainer components = null;
4 protected override void Dispose (bool disposing)
5 {
6 if (disposing && (components != null))
7 {
8 components.Dispose ();
9 }
10 base.Dispose (disposing);
11 }
12 private void InitializeComponent ()
13 {
14 this.SuspendLayout ();
15 this.AutoScaleDimensions = new System.Drawing.SizeF (7F, 12F);
16 this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
17 this.BackColor = System.Drawing.Color.SkyBlue;
18 this.BackgroundImage = global::CustomControl.Properties.Resources.test01;
19 this.ClientSize = new System.Drawing.Size (583, 500);
20 this.Font = new System.Drawing.Font ("宋体", 9F, ((System.Drawing.FontStyle)(((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic)
21 | System.Drawing.FontStyle.Underline))), System.Drawing.GraphicsUnit.Point, ((byte)(134)));
22 this.ForeColor = System.Drawing.Color.Red;
23 this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
24 this.Name = "Demo3";
25 this.Opacity = 0.8;
26 this.Text = "Demo3";
27 this.MouseUp += new System.Windows.Forms.MouseEventHandler (this.Demo3_MouseUp);
28 this.MouseDown += new System.Windows.Forms.MouseEventHandler (this.Demo3_MouseDown);
29 this.MouseMove += new System.Windows.Forms.MouseEventHandler (this.Demo3_MouseMove);
30 this.ResumeLayout (false);
31
32 }
33
34
35 public Demo3 ()
36 {
37 InitializeComponent ();
38 this.Height = 500;
39 this.Width = 500;
40 this.Region = new Region (GetRoundRectPath(0,0,this.Width/4,this.Width));
41 }
42
43 /// <summary>
44 /// 得到一个环形路径
45 /// </summary>
46 /// <param name="x">外圆外切正方形的左上角位置top</param>
47 /// <param name="y">外圆外切正方形的左上角位置left</param>
48 /// <param name="outDiameter">外圆直径</param>
49 /// <param name="inDiameter">内圆直径</param>
50 /// <returns></returns>
51 public GraphicsPath GetRoundRectPath (float x, float y, int outDiameter, int inDiameter)
52 {
53 if (outDiameter < inDiameter)
54 {
55 outDiameter = outDiameter ^ inDiameter;
56 inDiameter = outDiameter ^ inDiameter;
57 outDiameter = outDiameter ^ inDiameter;
58 //A=A+B;B=A-B;A=A-B; //交换方法1
59 //A=A^B;B=A^B;A=A^B; //交换方法2
60 }
61
62 //添加一个圆
63 GraphicsPath path1 = new GraphicsPath ();
64
65 path1.AddEllipse (x, y, outDiameter, outDiameter);
66
67 GraphicsPath path2 = new GraphicsPath ();
68 path2.AddEllipse (x + (outDiameter - inDiameter) / 2, x + (outDiameter - inDiameter) / 2, inDiameter, inDiameter);
69
70 path1.AddPath (path2, true);
71
72 path1.AddString ("无码高清版", new FontFamily ("Arial"), (int)FontStyle.Bold, 26, new Point (170, 100), StringFormat.GenericDefault);
73 path1.AddString ("GGYY影视公司", new FontFamily ("Arial"), (int)FontStyle.Underline, 26, new Point (160, 400), StringFormat.GenericDefault);
74
75 return path1;
76 }
77 //记录鼠标指针的坐标
78 private Point mouseOffset;
79 //记录鼠标按键是否按下
80 private bool isMouseDown = false;
81
82 private void Demo3_MouseDown (object sender, MouseEventArgs e)
83 {
84 int xOffset;
85 int yOffset;
86 if (e.Button == MouseButtons.Left)
87 {
88 if (this.FormBorderStyle == System.Windows.Forms.FormBorderStyle.None)
89 {
90 xOffset = -e.X ;
91 yOffset = -e.Y;
92 }
93 else
94 {
95 xOffset = -e.X - SystemInformation.FrameBorderSize.Width;
96 yOffset = -e.Y - SystemInformation.CaptionHeight - SystemInformation.FrameBorderSize.Height;
97 }
98 mouseOffset = new Point (xOffset, yOffset);
99 isMouseDown = true;
100 }
101 }
102
103 private void Demo3_MouseMove (object sender, MouseEventArgs e)
104 {
105 if (isMouseDown)
106 {
107 Point mousePos = Control.MousePosition;
108 mousePos.Offset (mouseOffset.X, mouseOffset.Y);
109 Location = mousePos;
110 }
111 }
112
113 private void Demo3_MouseUp (object sender, MouseEventArgs e)
114 {
115 // 修改鼠标状态isMouseDown的值, 确保只有鼠标左键按下并移动时，才移动窗体
116 if (e.Button == MouseButtons.Left)
117 {
118 isMouseDown = false;
119 }
120 }
121
122 }