ディストピア感があるが、「プロセスを監視して、1秒ごとに、使用中のアプリと、操作中か否かのログを書き出す、ツール」を作った。

（毎日毎日、何をやったかを業務日報を記録する必要がある現場で、毎回手入力をするのがアホくさいので、「わかった。もう全部ログ差し出すから勝手に分析して」という気持ちで、ツール作った。）

ツール作ってみて、自身で計測してみたら、８時間ぐらいの労働時間中、PC操作（キーボードかマウス操作）しているのは、３－４割ぐらいだった。そんなもんかな、とは思った。

※c#のprocessクラスではなくwinapiを利用しているのは、c#の純正では、うまくプロセス名を拾えないケースがあったため

Process_Kanshi.cs

//c:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe Process_Kanshi.cs

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using System.Collections.Generic;
using System.Text;

public class lCnt{
	public int cntWrk { get; set; }
	public int cntSm { get; set; }
	public string PNm { get; set; }
	public string MWT { get; set; }
	public override string ToString()
	{
	     return cntWrk + "\t" + cntSm + "\t" + PNm + "\t" + MWT;
	}
	public void toWin(){
	    this.cntWrk++;
	    this.cntSm++;
	}
	public void toLose(){
	    this.cntSm++;
	}
}

public class Process_Kanshi
{ ///*


[DllImport("user32.dll")]
public static extern int GetAsyncKeyState(long vKey);

[DllImport("USER32.dll", CallingConvention = CallingConvention.StdCall)]
static extern void SetCursorPos(int X, int Y);

[DllImport("kernel32.dll")]
private static extern IntPtr OpenProcess(uint dwDesiredAccess, bool bInheritHandle, uint dwProcessId);

[DllImport("kernel32.dll")]
private static extern bool CloseHandle(IntPtr handle);

[DllImport("USER32.DLL")]
private static extern IntPtr GetForegroundWindow();

[DllImport("user32.dll", SetLastError = true)]
private static extern int GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);

[DllImport("psapi.dll", CharSet = CharSet.Ansi)]
private static extern uint GetModuleBaseName(IntPtr hWnd, IntPtr hModule, [MarshalAs(UnmanagedType.LPStr), Out] StringBuilder lpBaseName, uint nSize);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern int GetWindowTextLength(IntPtr hWnd);

  public static void Main(string[] args)
  { ///**

	//Process[] processList;

	DateTime dt = DateTime.Now;
	string dt_s = dt.ToString("yyyy_MM_dd");

	bool DtMsCr = false;
	bool DtKyBd = false;
	bool isWin = false;

	string s_mc = "";
	string lgT = "";
	string pT = "";

	string pnm0 = "";
	string mwt0 = "";

	Dictionary<string, lCnt> prcLog;// = new Dictionary<string, lCnt>();

	for(;;){ ///***

	prcLog = new Dictionary<string, lCnt>();

	for(int i = 0 ; i<60*5; i++){ //****

	//---------
	DtMsCr = false;
	DtKyBd = false;
	
	pnm0 = "";
	mwt0 = "";
	pT = "";
	isWin = false;
	//---------

	DateTime mdt1 = DateTime.Now;

	//processList = Process.GetProcesses();

	IntPtr hWnd = GetForegroundWindow();

	uint processId;
	GetWindowThreadProcessId(hWnd, out processId);

	if (hWnd != IntPtr.Zero)
	{
		var hnd = OpenProcess(0x0400 | 0x0010 , false, processId);

		var buffer = new StringBuilder(255);
		GetModuleBaseName(hnd, IntPtr.Zero, buffer, (uint)buffer.Capacity);

		int textLen = GetWindowTextLength(hWnd);

		StringBuilder tsb = new StringBuilder(textLen + 1);
		GetWindowText(hWnd, tsb, tsb.Capacity);

		var processName = buffer.ToString().ToLower();

		//-----
		isWin = true;
		string lmwt = tsb.ToString();
		lmwt = lmwt.Trim().Replace(" ","");
		lmwt = lmwt.Substring(0,Math.Min(30,lmwt.Length));
		pT = processName + "_" + lmwt;
		Console.WriteLine( pT );

		pnm0 = processName;
		mwt0 = lmwt;
		//-----

	}

	if(!isWin && (int)hWnd!=0){
		Console.WriteLine( "Unknown" + " _ " + hWnd);
		pT = "Unknown";
		pnm0 = "Unknown";
	}

	if((int)hWnd==0){
		Console.WriteLine( "LOG_OFF" + " _ " + hWnd);
		pT = "LOG_OFF";
		pnm0 = "LOG_OFF";
	}

	for(int ix = 32 ; ix <= 226; ix ++){
	    if(GetAsyncKeyState(ix) != 0){
	        DtKyBd = true;
	    }
	}
	if(s_mc != Control.MousePosition.ToString()){
	    DtMsCr = true;
	}


	//////////////##############
	if (!prcLog.ContainsKey(pT))
	{
	    prcLog.Add(pT, new lCnt() { cntWrk=1, cntSm=1, PNm = pnm0, MWT = mwt0 });
	}else{
	    if(DtKyBd || DtMsCr){
	        prcLog[pT].toWin();
	        //Console.WriteLine( "w");
	    }else{
	        prcLog[pT].toLose();
	        //Console.WriteLine( "l");
	    }
	}
	//////////////##############
	s_mc = Control.MousePosition.ToString();

			DateTime mdt2 = DateTime.Now;
			TimeSpan mms = mdt2-mdt1;
			int imms = (int)mms.TotalMilliseconds;
			//Console.WriteLine( "imms "+ imms);
			imms = 1000 - imms -10 ;
			if(imms>=1000 || imms < 0 ){imms=700;}
		System.Threading.Thread.Sleep(imms);

	} //****

	dt = DateTime.Now;
	string dt_sl = dt.ToString("yyyy_MM_dd_HHmmss");

	lgT = "";
	foreach (KeyValuePair<string, lCnt> kvp in prcLog)
	{
	    lgT = lgT + dt_sl + "\t" + kvp.Key + "\t" +  kvp.Value + Environment.NewLine;
	}

	System.IO.File.AppendAllText(@".\" + dt_s + ".txt", lgT);
	lgT = "";
	pT = "";

	pnm0 = "";
	mwt0 = "";

	DtMsCr = false;
	DtKyBd = false;
	s_mc = Control.MousePosition.ToString();


	} ///***

  } ///**

} ///*