防疲劳软件 ­

截图： ­

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一、界面 ­

在界面上没什么好说的，因为自用所以控件的摆放也比较随意。 ­

二、逻辑 ­

当点击开始按钮后，记录一个开始时间、启用一个Timer(Timer1)去不断的计算提醒剩余时间，当提醒剩余时间为0时，停用Timer1并调用WindowsApI去播放选中的歌，启用一个Timer(Timer2)用于计算歌曲是否已结束，当歌曲结束后再启用Timer1、把开始时间置为当前时间、停用Timer2,以上Timer时间间隔为1秒，其中在播放歌曲时会锁定计算机，这样是为了强迫使用者休息保护好自己的眼睛和保持清淅的思路。（如此不停的循环调用） ­

二、实现要点 ­

1.时间差计算： ­

剩余时间=提醒间隔-（现在时间-开始时间） ­

TimeSpan ts1 = new TimeSpan(DateTime.Now.Ticks); ­

TimeSpan ts2 = new TimeSpan(startTime.Ticks); ­

TimeSpan ts = ts1.Subtract(ts2); ­

//这里要把天和小时数也算上，之前就是因为只算了分钟数，使剩余时间计算错误 ­

int PastMinutes = ((ts.Days * 24) + (ts.Hours * 60) + ts.Minutes); ­

remainTime(剩余时间) = numericUpDown1.Value(提醒间隔) - PastMinutes; ­ ­

2.窗体渐变效果： ­

我这里是使用窗体的Opacity属性来实现的，先把Opacity置为0然后不但的去累加。 ­

if (this.Opacity <= 0.9) ­

{ ­

this.Opacity += 0.05; ­

} ­

else { ­

timer4.Stop(); ­

timer4.Dispose(); ­

} ­

提示：因为在渐变的过程中Windows要对窗体不停进行绘制，挺耗资源。 ­

3.窗体样式： ­

使用SkinEngine样式控件(如果需要可以传给大家)+.ssk样式文件去实现 ­

实现方式：可以IO类提取样式文件夹中所有文件的名称，绑定到下拉列表中，通过下拉列表的相应事件 ­

可以对窗体的样式进行实时改变。 ­

skinEngine1.SkinFile = AppDomain.CurrentDomain.BaseDirectory + 样式文件夹名 + "\\" + 样式文 ­

件名+".ssk"; ­

4.窗体托盘化： ­

使用.Net自带的NotifyIcon托盘控件去完成使用很简单。 ­

//指定托盘图片这里是使用资源文件指定的，你也可以指定图片路径 ­

this.notifyIcon1.Icon = global::PreventFatigue.Properties.Resources.MA_SMILE_9; ­

//指定托盘的名称 ­

this.notifyIcon1.Text = this.Text; ­

//托盘单击事件中的代码 ­

this.Visible = true; ­

this.WindowState = FormWindowState.Normal; ­

this.notifyIcon1.Visible = false; ­

//窗体大小调整事件(Resize事件)中的代码 ­

if (this.WindowState == FormWindowState.Minimized) ­

{ ­

this.Visible = false; ­

this.notifyIcon1.Visible = true; ­

} ­

5.歌曲播放windowAPI代码： ­

大家可以使用这个类做其它类似的软件 ­

using System; ­

using System.Runtime.InteropServices; ­

using System.Text; ­

using System.IO; ­

namespace clsMCIPlay ­

{ ­

/// <summary> ­

/// clsMci 的摘要说明。 ­

/// </summary> ­

public class clsMCI ­

{ ­

public clsMCI() ­

{ ­

// ­

// TODO: 在此处添加构造函数逻辑 ­

// ­

} ­

//定义API函数使用的字符串变量 ­

[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)] ­

private string Name = ""; ­

[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] ­

private string durLength = ""; ­

[MarshalAs(UnmanagedType.LPTStr, SizeConst = 128)] ­

private string TemStr = ""; ­

int ilong; ­

//定义播放状态枚举变量 ­

public enum State ­

{ ­

mPlaying = 1, ­

mPuase = 2, ­

mStop = 3 ­

}; ­

//结构变量 ­

public struct structMCI ­

{ ­

public bool bMut; ­

public int iDur; ­

public int iPos; ­

public int iVol; ­

public int iBal; ­

public string iName; ­

public State state; ­

}; ­

public structMCI mc = new structMCI(); ­

/// <summary> ­

/// 取得和设置播放文件属性 ­

/// </summary> ­

public string FileName ­

{ ­

get ­

{ ­

return mc.iName; ­

} ­

set ­

{ ­

//ASCIIEncoding asc = new ASCIIEncoding(); ­

try ­

{ ­

TemStr = ""; ­

TemStr = TemStr.PadLeft(127, Convert.ToChar(" ")); ­

Name = Name.PadLeft(260, Convert.ToChar(" ")); ­

mc.iName = value; ­

ilong = APIClass.GetShortPathName(mc.iName, Name, Name.Length); ­

Name = GetCurrPath(Name); ­

//Name = "open " + Convert.ToChar(34) + Name + Convert.ToChar(34) + " alias ­

media"; ­

Name = "open " + Convert.ToChar(34) + Name + Convert.ToChar(34) + " alias ­

media"; ­

ilong = APIClass.mciSendString("close all", TemStr, TemStr.Length, 0); ­

ilong = APIClass.mciSendString(Name, TemStr, TemStr.Length, 0); ­

ilong = APIClass.mciSendString("set media time format milliseconds", TemStr, ­

TemStr.Length, 0); ­

mc.state = State.mStop; ­

} ­

catch ­

{ ­

throw new Exception("设置播放文件属性出错!"); ­

} ­

} ­

} ­

/// <summary> ­

/// 播放 ­

/// </summary> ­

public void play() ­

{ ­

TemStr = ""; ­

TemStr = TemStr.PadLeft(127, Convert.ToChar(" ")); ­

APIClass.mciSendString("play media", TemStr, TemStr.Length, 0); ­

mc.state = State.mPlaying; ­

} ­

/// <summary> ­

/// 停止 ­

/// </summary> ­

public void StopT() ­

{ ­

TemStr = ""; ­

TemStr = TemStr.PadLeft(128, Convert.ToChar(" ")); ­

ilong = APIClass.mciSendString("close media", TemStr, 128, 0); ­

ilong = APIClass.mciSendString("close all", TemStr, 128, 0); ­

mc.state = State.mStop; ­

} ­

/// <summary> ­

/// 暂停 ­

/// </summary> ­

public void Puase() ­

{ ­

TemStr = ""; ­

TemStr = TemStr.PadLeft(128, Convert.ToChar(" ")); ­

ilong = APIClass.mciSendString("pause media", TemStr, TemStr.Length, 0); ­

mc.state = State.mPuase; ­

} ­

/// <summary> ­

/// 获得当前路径 ­

/// </summary> ­

/// <param name="name"></param> ­

/// <returns></returns> ­

private string GetCurrPath(string name) ­

{ ­

if (name.Length < 1) return ""; ­

name = name.Trim(); ­

name = name.Substring(0, name.Length - 1); ­

return name; ­

} ­

/// <summary> ­

/// 总时间(秒钟) ­

/// </summary> ­

public int Duration ­

{ ­

get ­

{ ­

durLength = ""; ­

durLength = durLength.PadLeft(128, Convert.ToChar(" ")); ­

APIClass.mciSendString("status media length", durLength, durLength.Length, 0); ­

durLength = durLength.Trim(); ­

if (durLength == "") return 0; ­

return (int)(Convert.ToDouble(durLength) / 1000f); ­

} ­

} ­

/// <summary> ­

/// 当前时间(秒钟) ­

/// </summary> ­

public int CurrentPosition ­

{ ­

get ­

{ ­

durLength = ""; ­

durLength = durLength.PadLeft(128, Convert.ToChar(" ")); ­

APIClass.mciSendString("status media position", durLength, durLength.Length, 0); ­

durLength = durLength.Trim(); ­

mc.iPos = (int)(Convert.ToDouble(durLength) / 1000f); ­

return mc.iPos; ­

} ­

} ­

} ­

/// <summary> ­

/// WindowsAPI类 ­

/// </summary> ­

public class APIClass ­

{ ­

[DllImport("kernel32.dll", CharSet = CharSet.Auto)] ­

public static extern int GetShortPathName( ­

string lpszLongPath, ­

string shortFile, ­

int cchBuffer ­

); ­

[DllImport("winmm.dll", EntryPoint = "mciSendString", CharSet = CharSet.Auto)] ­

public static extern int mciSendString( ­

string lpstrCommand, ­

string lpstrReturnString, ­

int uReturnLength, ­

int hwndCallback ­

); ­

} ­

} ­