Create a non-rectangular form

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; // declare a Bitmap object
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"); // initialize the Bitmap object from the specified Image
23 bit. MakeTransparent (Color. Blue); // use the default transparent Color to make the Bitmap transparent.
24}
25 protected override void OnPaint (PaintEventArgs e)
26 {
27 e. Graphics. DrawImage (Image) bit, new Point (0, 0); // draw an Image on the form
28}
29
30 private void label1_Click (object sender, EventArgs e)
31 {
32 this. Close (); // Close the form
33}
34}
35}

Frm_Main.designer.cs
View Code
1 namespace RectangleForm
2 {
3 partial class Frm_Main
4 {
5 /// <summary>
6 // required designer variables.
7 /// </summary>
8 private System. ComponentModel. IContainer components = null;
9
10 /// <summary>
11 /// clear all resources in use.
12 /// </summary>
13 /// <param name = "disposing"> true if managed resources should be released; otherwise, 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 code generated by Windows Form Designer
24
25 /// <summary>
26 // The designer supports the required methods-do not
27 // use the code editor to modify the content of this method.
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 = "Creating a non-rectangular form ";
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}

 

From Mo Mingqi Miao