实例介绍
【实例简介】定时休息，自动显示桌面和动画。 提供C#源代码。
【实例截图】
到了指定休息的时间会弹出如下动画效果：
【核心代码】
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Text;
using System.Windows.Forms;
using Microsoft.Win32;
namespace ShowDesktop
{
delegate void SetVisible(bool visible);
delegate void SetNotifyText(string text);
public partial class AnimForm : Form
{
private Image m_imgImage = null;
private EventHandler m_evthdlAnimator = null;
System.Threading.Thread ShowThread = null;
int nStep = 15;
int nRest = 1;
int nPause = 60;
bool bPause = false;
bool bShowDesktop = true;
bool bShowAnim = true;
bool bClosing = false;
bool bAutoRun = false;
public AnimForm()
{
InitializeComponent();
this.SetStyle(ControlStyles.UserPaint, true);
this.SetStyle(ControlStyles.DoubleBuffer, true);
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
m_evthdlAnimator = new EventHandler(OnImageAnimate);
this.Visible = false;
this.TopMost = true;
this.WindowState = FormWindowState.Minimized;
ReadIniFile();
ShowThread = new System.Threading.Thread(new System.Threading.ThreadStart(ShowDesktopThread));
ShowThread.Name = "ShowDesktopThread";
ShowThread.Start();
}
private void SetVisible(bool visible)
{
// InvokeRequired required compares the thread ID of the
// calling thread to the thread ID of the creating thread.
// If these threads are different, it returns true.
if (this.InvokeRequired)
{
SetVisible d = new SetVisible(SetVisible);
this.Invoke(d, new object[] { visible });
}
else
{
if (visible)
this.WindowState = FormWindowState.Normal;
this.Visible = visible;
}
}
private void SetNotifyText(string text)
{
// InvokeRequired required compares the thread ID of the
// calling thread to the thread ID of the creating thread.
// If these threads are different, it returns true.
if (this.InvokeRequired)
{
SetNotifyText d = new SetNotifyText(SetNotifyText);
this.Invoke(d, new object[] { text });
}
else
{
notifyIcon1.Text = text;
}
}
private void ShowDesktopThread()
{
int nTickLast = System.Environment.TickCount;
bool bLastPauseChecked = this.bPause;
bool bLastFullScreenApp = false;
while (true)
{
//有全屏程序运行
if (RunningFullScreenApp)
{
bLastFullScreenApp = true;
System.Threading.Thread.Sleep(100);
continue;
}
int nTickNow = System.Environment.TickCount;
//更改暂停状态，重新计时
if (bLastPauseChecked != this.bPause)
{
bLastPauseChecked = this.bPause;
nTickLast = nTickNow;
}
//从全屏状态退出，重新计时
if (bLastFullScreenApp == true)
{
bLastFullScreenApp = false;
nTickLast = nTickNow;
}
int nRemain = nStep * 60 * 1000;
//加上暂停的时间
if (this.bPause)
{
nRemain = nPause * 60 * 1000;
}
nRemain -= nTickNow - nTickLast;
int nMinute = nRemain /( 60 * 1000);
int nSecond = nRemain / 1000 - nMinute * 60;
string text = string.Format("还剩{0}分钟{1}秒休息…", nMinute, nSecond) ;
SetNotifyText(text);
//暂停时间结束，开始倒计时下次休息
if (this.bPause && nTickNow - nTickLast > nPause * 60 * 1000)
{
this.bPause = false;
nTickLast = nTickNow;
}
//开始休息
else if (!this.bPause && nTickNow - nTickLast > nStep * 60 * 1000)
//if (nRemain <= 0)
{
if (this.bPause) this.bPause = false;
nTickLast = nTickNow;
if (bShowDesktop)//显示桌面
ShowDesktop();
System.Threading.Thread.Sleep(100);
if (bShowAnim)//显示动画
SetVisible(true);
}
//结束休息
else if (!this.bPause && nTickNow - nTickLast > nRest * 60 * 1000)
//else if (nTickNow - nTickLast > nRest * 60 * 1000)
{
SetVisible(false);
}
System.Threading.Thread.Sleep(100);
}
}
void ShowDesktop()
{
Type oleType = Type.GetTypeFromProgID("Shell.Application");
object oleObject = System.Activator.CreateInstance(oleType);
oleType.InvokeMember("ToggleDesktop", BindingFlags.InvokeMethod, null, oleObject, null);
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
if (m_imgImage != null)
{
UpdateImage();
// 绘制图片的当前帧
e.Graphics.DrawImage(m_imgImage, new Rectangle(0, 0, m_imgImage.Width, m_imgImage.Height));
}
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
try
{
Stream manifestResourceStream = this.GetType().Assembly.GetManifestResourceStream("ShowDesktop.amtf.gif");
m_imgImage = Image.FromStream(manifestResourceStream, true);
}
catch
{
MessageBox.Show("无法载入动画文件！", "ShowDesktop");
MyClose();
}
BeginAnimate();
}
#region functions of animator image
private void BeginAnimate()
{
if (m_imgImage == null)
return;
if (ImageAnimator.CanAnimate(m_imgImage))
{
ImageAnimator.Animate(m_imgImage, m_evthdlAnimator);
}
}
private void StopAnimate()
{
if (m_imgImage == null)
return;
if (ImageAnimator.CanAnimate(m_imgImage))
{
ImageAnimator.StopAnimate(m_imgImage, m_evthdlAnimator);
}
}
private void UpdateImage()
{
if (m_imgImage == null)
return;
if (ImageAnimator.CanAnimate(m_imgImage))
{
ImageAnimator.UpdateFrames(m_imgImage);
}
}
/// <summary>
/// 动画图片帧变化的时间触发，这个事件并非在主线程中触发
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnImageAnimate(Object sender, EventArgs e)
{
this.Invalidate();
}
#endregion // End of functions of animator image
private void AnimForm_Paint(object sender, PaintEventArgs e)
{
System.Drawing.Drawing2D.GraphicsPath shape = new System.Drawing.Drawing2D.GraphicsPath();
shape.AddEllipse(50, 60, 423, 438);
this.Region = new Region(shape);
}
private void AnimForm_MouseDown(object sender, MouseEventArgs e)
{
this.Visible = false;
}
public SetForm form = null;
private void notifyIcon1_MouseClick(object sender, MouseEventArgs e)
{
if (form == null)
{
form = new SetForm(SetParam, MyClose, nStep, nRest, bPause, nPause, bShowDesktop, bShowAnim, bAutoRun);
form.Show();
}
else
{
form.Visible = true;
form.WindowState = FormWindowState.Normal;
}
}
private void ReadIniFile()
{
try
{
using (StreamReader reader = File.OpenText("ShowDesktop.ini"))
{
string line = "";
string[] values;
while ((line = reader.ReadLine()) != null)
{
if (line.StartsWith("RestStep"))
{
values = line.Split(' ');
nStep = Convert.ToInt32(values[values.Length - 1]);
nStep = nStep <= 0 ? 1 : nStep;
}
else if (line.StartsWith("RestTime"))
{
values = line.Split(' ');
nRest = Convert.ToInt32(values[values.Length - 1]);
nRest = nRest <= 0 ? 1 : nRest;
}
else if (line.StartsWith("PauseTime"))
{
values = line.Split(' ');
nPause = Convert.ToInt32(values[values.Length - 1]);
nPause = nPause <= 0 ? 1 : nPause;
}
else if (line.StartsWith("ShowDesktop"))
{
values = line.Split(' ');
bShowDesktop = Convert.ToBoolean(values[values.Length - 1]);
}
else if (line.StartsWith("ShowAnim"))
{
values = line.Split(' ');
bShowAnim = Convert.ToBoolean(values[values.Length - 1]);
}
else if (line.StartsWith("AutoRun"))
{
//读配置文件不顶事！
//values = line.Split(' ');
//bAutoRun = Convert.ToBoolean(values[values.Length - 1]);
}
}
reader.Close();
if (!bShowDesktop && !bShowAnim)
bShowDesktop = true;
bAutoRun = IsAutoRun();//还是注册表说了算呀
}
}
catch
{
}
}
private void WriteIniFile()
{
try
{
using (StreamWriter writer = File.CreateText("ShowDesktop.ini"))
{
string line = string.Format("RestStep {0}", nStep);
writer.WriteLine(line);
line = string.Format("RestTime {0}", nRest);
writer.WriteLine(line);
line = string.Format("PauseTime {0}", nPause);
writer.WriteLine(line);
line = string.Format("ShowDesktop {0}", bShowDesktop);
writer.WriteLine(line);
line = string.Format("ShowAnim {0}", bShowAnim);
writer.WriteLine(line);
line = string.Format("AutoRun {0}", bAutoRun);
writer.WriteLine(line);
writer.Close();
}
}
catch
{
}
}
public void SetParam(int nStep, int nRest, bool bPause, int nPause, bool bShowDesktop, bool bShowAnim, bool bAutoRun)
{
form = null;
this.nStep = nStep;
this.nRest = nRest;
this.bPause = bPause;
this.nPause = nPause;
this.bShowDesktop = bShowDesktop;
this.bShowAnim = bShowAnim;
this.bAutoRun = bAutoRun;
if (bAutoRun != IsAutoRun())
{
SetAutoRun(this.GetType().Assembly.Location, bAutoRun);
//有时候写不成功的，所以要再读一遍真正的数值。
this.bAutoRun = IsAutoRun();
}
WriteIniFile();
}
private bool IsAutoRun()
{
RegistryKey reg = null;
try
{
string fileName = this.GetType().Assembly.Location;
String name = fileName.Substring(fileName.LastIndexOf(@"/") 1);
name = name.Substring(fileName.LastIndexOf(@"\") 1);
reg = OpenRegistryPath(Registry.CurrentUser, @"/SOFTWARE/Microsoft/Windows/CurrentVersion/Run");
string value = reg.GetValue(name).ToString();
return string.Equals(fileName, value);
}
catch
{
MessageBox.Show("无法读注册表，不能判断当前是否是开机自动运行。", "ShowDesktop");
}
finally
{
if (reg != null)
reg.Close();
}
return false;
}
private void SetAutoRun(string fileName, bool isAutoRun)
{
RegistryKey reg = null;
try
{
String name = fileName.Substring(fileName.LastIndexOf(@"/") 1);
name = name.Substring(fileName.LastIndexOf(@"\") 1);
reg = OpenRegistryPath(Registry.CurrentUser, @"/SOFTWARE/Microsoft/Windows/CurrentVersion/Run");
if (reg == null)
throw new Exception();
if (isAutoRun)
reg.SetValue(name, fileName);
else
reg.SetValue(name, "");
}
catch (Exception ex)
{
MessageBox.Show("尝试设置开机自动运行，写入系统注册表失败！\r\n请尝试关闭关闭第三方防护软件，\r\n或者关闭本程序，尝试以管理员身份再次运行。", "ShowDesktop");
}
finally
{
if (reg != null)
reg.Close();
}
}
private RegistryKey OpenRegistryPath(RegistryKey root, string s)
{
s = s.Remove(0, 1) @"/";
while (s.IndexOf(@"/") != -1)
{
//root = root.OpenSubKey(s.Substring(0, s.IndexOf(@"/")));
root = root.OpenSubKey(s.Substring(0, s.IndexOf(@"/")), true);
s = s.Remove(0, s.IndexOf(@"/") 1);
}
return root;
}
public void MyClose()
{
ShowThread.Abort();
this.RegisterAppBar(true);
bClosing = true;
if (m_imgImage != null)
{
StopAnimate();
m_imgImage = null;
}
this.Close();
}
protected override void OnClosing(CancelEventArgs e)
{
if (!bClosing)
{
this.Visible = false;
e.Cancel = true;
}
return;
}
}
}
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