创建非矩形窗体

Frm_Main.cs
  View Code
 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Text;
 7 using System.Windows.Forms;
 8 using System.Runtime.InteropServices;
 9
10 namespace RectangleForm
11 {
12     public partial class Frm_Main : Form
13     {
14         Bitmap bit;//声明一个Bitmap位图对象
15         public Frm_Main()
16         {
17             InitializeComponent();
18         }
19
20         private void Form1_Load(object sender, EventArgs e)
21         {
22             bit = new Bitmap("bccd.png");//从指定的图像初始化Bitmap对象
23             bit.MakeTransparent(Color.Blue);//使用默认的透明颜色对Bitmap位图透明
24         }
25         protected override void OnPaint(PaintEventArgs e)
26         {
27             e.Graphics.DrawImage((Image)bit, new Point(0, 0));//在窗体上绘制图片
28         }
29
30         private void label1_Click(object sender, EventArgs e)
31         {
32             this.Close();//关闭窗体
33         }
34     }
35 }

Frm_Main.designer.cs
  View Code
 1 namespace RectangleForm
 2 {
 3     partial class Frm_Main
 4     {
 5         /// <summary>
 6 /// 必需的设计器变量。
 7 /// </summary>
 8         private System.ComponentModel.IContainer components = null;
 9
10         /// <summary>
11 /// 清理所有正在使用的资源。
12 /// </summary>
13 /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
14         protected override void Dispose(bool disposing)
15         {
16             if (disposing && (components != null))
17             {
18                 components.Dispose();
19             }
20             base.Dispose(disposing);
21         }
22
23         #region Windows 窗体设计器生成的代码
24
25         /// <summary>
26 /// 设计器支持所需的方法 - 不要
27 /// 使用代码编辑器修改此方法的内容。
28 /// </summary>
29         private void InitializeComponent()
30         {
31             this.label1 = new System.Windows.Forms.Label();
32             this.SuspendLayout();
33             //
34 // label1
35 //
36             this.label1.BackColor = System.Drawing.Color.Transparent;
37             this.label1.Location = new System.Drawing.Point(280, 42);
38             this.label1.Name = "label1";
39             this.label1.Size = new System.Drawing.Size(17, 16);
40             this.label1.TabIndex = 0;
41             this.label1.Click += new System.EventHandler(this.label1_Click);
42             //
43 // Frm_Main
44 //
45             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
46             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
47             this.BackColor = System.Drawing.SystemColors.Control;
48             this.ClientSize = new System.Drawing.Size(300, 300);
49             this.Controls.Add(this.label1);
50             this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
51             this.Name = "Frm_Main";
52             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
53             this.Text = "创建非矩形窗体";
54             this.TransparencyKey = System.Drawing.SystemColors.Control;
55             this.Load += new System.EventHandler(this.Form1_Load);
56             this.ResumeLayout(false);
57
58         }
59
60         #endregion
61
62         private System.Windows.Forms.Label label1;
63
64     }
65 }

补充：软件开发 , C# ,

上一个：从上次关闭位置启动窗体
下一个：保存远程图片