C#Winform窗口特效源码(1)

本文基于.Net开发，使用C#作为开发语言，分别包含以下效果： 移动无边框窗口、窗口移动限制（限制在屏幕内）、桌面贴边自动隐藏（仿QQ隐藏窗口）

1、移动无边框窗口 采用了消息的方式，可以实现通过窗口内的任何控件来移动窗口

1. private const int WM_NCLBUTTONDOWN = 0x00A1;
2. private const int HT_CAPTION = 0x002;
3. private void Form_MouseDown(object sender, MouseEventArgs e)
4. {
5. if (e.Button == MouseButtons.Left)
6. {
7. ((Control)sender).Capture = false;
8. Message msg = Message.Create(Handle, WM_NCLBUTTONDOWN, (IntPtr)HT_CAPTION, IntPtr.Zero);
9. base.WndProc(ref msg);
10. }
11. }

使用方法： 将以上代码复制到Form的class内，将Form或Form中需要控制Form移动的控件的MouseDown事件关联到这个方法上，如： 对于Form：this.MouseDown+=new System.Windows.Forms.MouseEventHandler(Form_MouseDown); 对于其它控件：Control.MouseDown+=new System.Windows.Forms.MouseEventHandler(Form_MouseDown);
2、窗口移动限制

1. private const int WM_MOVING = 0x0216;
2. protected override void WndProc(ref Message m)
3. {
4. switch (m.Msg)
5. {
6. case WM_MOVING: // 窗体移动的消息，控制窗体不会移出屏幕外
7. int left = Marshal.ReadInt32(m.LParam, 0);
8. int top = Marshal.ReadInt32(m.LParam, 4);
9. int right = Marshal.ReadInt32(m.LParam, 8);
10. int bottom = Marshal.ReadInt32(m.LParam, 12);
11. left = Math.Min(Math.Max(0, left), Screen.PrimaryScreen.Bounds.Width - Width);
12. top = Math.Min(Math.Max(0, top), Screen.PrimaryScreen.Bounds.Height - Height);
13. right = Math.Min(Math.Max(Width, right), Screen.PrimaryScreen.Bounds.Width);
14. bottom = Math.Min(Math.Max(Height, bottom), Screen.PrimaryScreen.Bounds.Height);
15. Marshal.WriteInt32(m.LParam, 0, left);
16. Marshal.WriteInt32(m.LParam, 4, top);
17. Marshal.WriteInt32(m.LParam, 8, right);
18. Marshal.WriteInt32(m.LParam, 12, bottom);
19. break;
20. }
21. base.WndProc(ref m);
22. }

使用方法： 添加using System.Runtime.InteropServices; 在Form类定义中加入以上代码即可 3、桌面贴边自动隐藏

下载: FormAutoDock.cs

1. public class FormAutoDock
2. {
3. public static void SideHideOrShow(Form DockableForm, ref int DockFormHeight, Timer _dockTimer)
4. {
5. if (DockableForm.WindowState != FormWindowState.Minimized)
6. {
7. _dockTimer.Interval = 1500;
8. if (Cursor.Position.X > DockableForm.Left - 1 && Cursor.Position.X < DockableForm.Right && Cursor.Position.Y > DockableForm.Top - 1 && Cursor.Position.Y < DockableForm.Bottom)
9. {
10. if (DockableForm.Top <= 0 && DockableForm.Left > 5 && DockableForm.Left < Screen.PrimaryScreen.WorkingArea.Width - DockableForm.Width)
11. {
12. DockableForm.Top = 0;
13. }
14. else if (DockableForm.Left <= 0)
15. {
16. DockableForm.Left = 0;
17. }
18. else if (DockableForm.Left + DockableForm.Width >= Screen.PrimaryScreen.WorkingArea.Width)
19. {
20. DockableForm.Left = Screen.PrimaryScreen.WorkingArea.Width - DockableForm.Width;
21. }
22. else
23. {
24. if (DockFormHeight > 0)
25. {
26. DockableForm.Height = DockFormHeight;
27. DockFormHeight = 0;
28. }
29. }
30. }
31. else
32. {
33. if (DockFormHeight < 1)
34. {
35. DockFormHeight = DockableForm.Height;
36. }
37. if (DockableForm.Top <= 4 && DockableForm.Left > 5 && DockableForm.Left < Screen.PrimaryScreen.WorkingArea.Width - DockableForm.Width)
38. {
39. DockableForm.Top = 3 - DockableForm.Height;
40. if (DockableForm.Left <= 4)
41. {
42. DockableForm.Left = -5;
43. }
44. else if (DockableForm.Left + DockableForm.Width >= Screen.PrimaryScreen.WorkingArea.Width - 4)
45. {
46. DockableForm.Left = Screen.PrimaryScreen.WorkingArea.Width - DockableForm.Width + 5;
47. }
48. }
49. else if (DockableForm.Left <= 4)
50. {
51. DockableForm.Left = 3 - DockableForm.Width;
52. }
53. else if (DockableForm.Left + DockableForm.Width >= Screen.PrimaryScreen.WorkingArea.Width - 4)
54. {
55. DockableForm.Left = Screen.PrimaryScreen.WorkingArea.Width - 3;
56. }
57. _dockTimer.Interval = 200;
58. }
59. }
60. }
61. }

使用方法： 将FormAutoDock.cs文件复制到与需要处理的Form相同目录下，并添加到项目中 在Form的类中增加以下内容： private Timer _dockTimer = null; private int DockFormHeight = 0; private void DockTimerAutoHide_Tick(object sender, EventArgs e) { FormAutoDock.SideHideOrShow(this, ref DockFormHeight, _dockTimer); Application.DoEvents(); }

在Form类构造方法中添加以下内容： _dockTimer = new Timer(); _dockTimer.Enabled = false; _dockTimer.Interval = 200; _dockTimer.Tick += new EventHandler(DockTimerAutoHide_Tick); _dockTimer.Start();