电脑日使用时间

一：目的

在家闲着电脑不要玩太久了哦！

二：要点

• 刚开始的字体颜色是绿色，超过4小时后变蓝色，超过8小时后变红。
• 根据显示器的分辨率动态调整窗口大小，字体大小
• 开机启动，记录数据，窗口移动

  四：源代码

  #include <windows.h>
  #include 
  #pragma comment(lib,"shlwapi.lib")
  #include "Shlwapi.h"
  
  LRESULT CALLBACK WinProc(HWND,UINT,WPARAM,LPARAM);
  
  UINT second,minute,hour,day,month;
  int font_size;		//字体大小
  int window_width;	//窗口宽度
  DWORD dw;			//
  char iniPath[MAX_PATH];
  
  int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
  {	
  //写入注册表，实现开机启动。HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run
  	HKEY hKey;
  	char str[100];
  	GetModuleFileName(NULL,str,100);
  
  	if(RegCreateKey(HKEY_LOCAL_MACHINE,
  		"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run",
  		&hKey) != ERROR_SUCCESS)
  
  		MessageBox(NULL,"操作失败！！！"," ",0);
  
  	RegSetValueEx(hKey,"time",0,REG_SZ,( const BYTE *)str,strlen(str)+1);
  	RegCloseKey(hKey);
  
  //////////////////////////////////////////////////////数据初始化
  	strncpy(iniPath,str,strlen(str)-(strlen(PathFindFileName(str)) )   );
  	PathAppend(iniPath,"time.dat");
  
  	day=GetPrivateProfileInt("Section0","Day",0,iniPath);//获取上次保存的day
  
  	SYSTEMTIME st;//取得系统时间		
  	GetSystemTime(&st);
  	if(day != st.wDay)
  		second,minute,hour=0;	//不是同一天则从零开始
  	else{
  		hour=GetPrivateProfileInt("Section0","Hour",0,iniPath);
  		minute=GetPrivateProfileInt("Section0","Minute",0,iniPath);
  	}
  	
  	font_size = GetSystemMetrics(SM_CYSCREEN)/30;	//字体大小是屏幕高度除以30
  	window_width=font_size*6;						//窗口宽度是字体大小的6倍
  //////////////////////////////////////////////////////////////////
  
  //创建窗口
  	WNDCLASS wc;
  	wc.style=CS_HREDRAW|CS_VREDRAW;
  	wc.lpfnWndProc=(WNDPROC)WinProc;
  	wc.cbClsExtra=0;
  	wc.cbWndExtra=0;
  	wc.hInstance=hInstance;
  	wc.hIcon=LoadIcon(NULL,IDI_APPLICATION);
  	wc.hCursor=LoadCursor(NULL,IDC_ARROW);
  	wc.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
  
  	wc.lpszMenuName=NULL;
  	wc.lpszClassName="MyWindow";
  	
  	RegisterClass(&wc);		//WS_EX_TOOLWINDOW风格可以使得不在任务栏上显示
  	int left=0,top=0;
  	HWND hwnd=CreateWindowEx(WS_EX_TOOLWINDOW,"MyWindow","My Window",WS_POPUP,//==比=的优先级高，一定要打括号
  		(left=GetPrivateProfileInt("Section2","left",0,iniPath))==0?GetSystemMetrics(SM_CXSCREEN)-window_width:left,//初始窗口左上角X坐标
  		(top=GetPrivateProfileInt("Section2","top",0,iniPath))==0?0:top,											//初始窗口左上角Y坐标
  		//500,500,
  		window_width,								//窗口宽度
  		100,										//窗口高度
  		NULL,NULL,hInstance,NULL);
  
  	if(!hwnd) return false;
  //增加窗口透明属性。	
  	LONG l = GetWindowLong(hwnd,GWL_EXSTYLE);
  	SetWindowLong(hwnd,GWL_EXSTYLE,l^0x00080000);
  //动态调用SetLayeredWindowAttributes，使窗口透明
  	HINSTANCE hInst = LoadLibrary("User32.DLL"); 
  	if(hInst) 
  	{ 
  		typedef BOOL (WINAPI *MYFUNC)(HWND,COLORREF,BYTE,DWORD); 
  		MYFUNC fun = NULL;
  		//取得SetLayeredWindowAttributes函数指针 
  		fun=(MYFUNC)GetProcAddress(hInst, "SetLayeredWindowAttributes");
  		if(fun) fun(hwnd,RGB(255,255,255),50,1); 
  		FreeLibrary(hInst); 
  	}
  //显示窗口，进入消息循环
  	ShowWindow(hwnd,nShowCmd);
  	UpdateWindow(hwnd);
  
  	MSG msg;
  
  	while(GetMessage(&msg,NULL,0,0))
  	{
  			TranslateMessage(&msg);
  			DispatchMessage(&msg);
  	}
  
  	return msg.wParam;
  }
  
  LRESULT CALLBACK WinProc(HWND h,UINT msg,WPARAM wParam,LPARAM lParam)
  {
  	HDC hdc;
  	PAINTSTRUCT ps;
  	RECT rect;
  	HFONT hFont;
  
  	char str[20],str2[20];  
  	SYSTEMTIME st;
  
  	switch(msg)
  	{
  	case WM_CREATE:
  		SetTimer(h,0,1000,NULL);	//设置定时器
  		return 0;
  
  	case WM_TIMER:
  		second+=1;		//秒针累加
  		//hour+=1;		调试用		
  		if(second==60){
  			second=0;
  			minute+=1;	//秒针满60，分针+1,记录日、时、分到Section0
  			InvalidateRect(h,NULL,false);
  
  			GetSystemTime(&st);
  
  			wsprintf(str,"%d",hour);
  			WritePrivateProfileString("Section0","Hour",str,iniPath);//时
  			wsprintf(str,"%d",minute);
  			WritePrivateProfileString("Section0","Minute",str,iniPath);//分
  			wsprintf(str,"%d",st.wDay);
  			WritePrivateProfileString("Section0","Day",str,iniPath);//日
  
  			wsprintf(str,"%d%02d%02d",st.wYear,st.wMonth,st.wDay);
  			wsprintf(str2,"%02d:%02d",hour,minute);
  			WritePrivateProfileString("Section1",str,str2,iniPath);
  
  		}
  
  		if(minute==60){minute=0;hour+=1;}//分针满60，时针+1
  		return 0;
  
  	case WM_PAINT:
  		hdc=BeginPaint(h,&ps);
  			GetClientRect(h,&rect);
  
  			if(hour<8) wsprintf(str,"%02d:%02d",hour,minute);
  			else wsprintf(str,"%02d:%02d\n请注意休息！",hour,minute);
  
  			hFont = CreateFont(font_size,0,0,0,FW_SEMIBOLD,
  				0,0,0,
  				DEFAULT_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,
  				DEFAULT_QUALITY,DEFAULT_PITCH,NULL);
  
  
  			if(hour<4 settextcolor="" hdc="" rgb="" 0="" 255="" 0="" 4="" else="" if="" hour="">=4 && hour<8) SetTextColor(hdc,RGB(0,0,255));//4-8小时，蓝色
  			else SetTextColor(hdc,RGB(255,0,0));//8小时以上，红色
  
  			SelectObject(hdc,hFont);
  
  			DrawText(hdc,str,-1,&rect,DT_LEFT);
  
  			DeleteObject(hFont);
  		EndPaint(h,&ps);
  		return 0;
  
  	case WM_KEYDOWN:
  		if(wParam==VK_ESCAPE){//按ESC键退出
  			KillTimer(h,0);
  			PostQuitMessage(0);
  		}
  		return 0;
  		
  	case WM_LBUTTONDOWN:		//左键按下
  		PostMessage(h,WM_NCLBUTTONDOWN,HTCAPTION,lParam);
  		return 0;
  
  	case WM_MOVE:
  		wsprintf(str,"%d",(int)(short) HIWORD(lParam));
  		//MessageBox(h,str,"top",0);	调试用
  		WritePrivateProfileString("Section2","top",str,iniPath);
  		wsprintf(str,"%d",(int)(short) LOWORD(lParam));
  		//MessageBox(h,str,"left",0);	调试用
  		WritePrivateProfileString("Section2","left",str,iniPath);
  		return true;	//必须return TRUE,否则程序崩溃。参考MSDN：WM_MOVE
  
  	case WM_DESTROY:
  		PostQuitMessage(0);
  		return 0;
  	}
  	return DefWindowProc(h,msg,wParam,lParam);
  }