电脑日使用时间

一：目的

累计电脑日使用时间，超过8小时候提醒：请注意休息！

二：要点

三：实现

四：源代码

#include <windows.h>

LRESULT CALLBACK WinProc(HWND,UINT,WPARAM,LPARAM);
void auto_run();

UINT second,minute,hour,day,month;
int font_size,window_width;
DWORD dw;			//打杂的

int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
{
	auto_run();

	day=GetPrivateProfileInt("Section0","Day",0,"time.ini");
		
	SYSTEMTIME st;
	GetSystemTime(&st);
	if(day != st.wDay)	second,minute,hour=0;
	else{
		hour=GetPrivateProfileInt("Section0","Hour",0,"time.ini");
		minute=GetPrivateProfileInt("Section0","Minute",0,"time.ini");
	}
	
	font_size = GetSystemMetrics(SM_CYSCREEN)/30;
	window_width=font_size*6;


	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
	HWND hwnd=CreateWindowEx(WS_EX_TOOLWINDOW,"MyWindow","My Window",WS_POPUP,
		GetSystemMetrics(SM_CXSCREEN)-window_width,0,window_width,100,

		NULL,NULL,hInstance,NULL);
	if(!hwnd) return false;
/*增加窗口透明属性*/   /*动态调用SetLayeredWindowAttributes，使窗口透明*/
	LONG l = GetWindowLong(hwnd,GWL_EXSTYLE);
	SetWindowLong(hwnd,GWL_EXSTYLE,l^0x00080000);


	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); 
	}
///////////////////////////////////////////
	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_TIMER:
		second+=1;
		//hour+=1;			调试用
		if(second==60){
			second=0;minute+=1;

			InvalidateRect(h,NULL,false);
			wsprintf(str,"%d",hour);
			WritePrivateProfileString("Section0","Hour",str,"time.ini");
			wsprintf(str,"%d",minute);
			WritePrivateProfileString("Section0","Minute",str,"time.ini");

			GetSystemTime(&st);

			if(st.wDay!=day || day==0){ 
				wsprintf(str,"%d%02d%02d",st.wYear,st.wMonth,st.wDay);
				wsprintf(str2,"%02d%02d",hour,minute);
				WritePrivateProfileString("Section1",str,str2,"time.ini");
				day=st.wDay;
			}

			wsprintf(str,"%d",st.wDay);
			WritePrivateProfileString("Section0","Day",str,"time.ini");
		}
		if(minute==60){minute=0;hour+=1;}
		
		return 0;
	case WM_CREATE:
		SetTimer(h,0,1000,NULL);
		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
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);

			SelectObject(hdc,hFont);

			if(hour<4) SetTextColor(hdc,RGB(0,255,0));
			else if(hour>=4 && hour<8) SetTextColor(hdc,RGB(0,0,255));
			else SetTextColor(hdc,RGB(255,0,0));

			DrawText(hdc,str,-1,&rect,DT_LEFT);

			DeleteObject(hFont);
		EndPaint(h,&ps);
		return 0;
//		/*		调试用
	case WM_KEYDOWN:
		if(wParam==VK_ESCAPE){
			MessageBox(h,"Escape!!!"," ",0);
			KillTimer(h,0);
			PostQuitMessage(0);
		}
		return 0;
//		*/
	case WM_DESTROY:
		PostQuitMessage(0);
		return 0;
	}
	return DefWindowProc(h,msg,wParam,lParam);
}

void auto_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,"注册表操作失败！！！"," ",0);
		return;
	}
	RegSetValueEx(hKey,"time",0,REG_SZ,( const BYTE *)str,strlen(str)+1);

	RegCloseKey(hKey);
}