取消定时关机

devc++实现windowsshutdown图形化界⾯（源代码如下）

#include

#include

charstr[];

charcmd[];

//charhour[10],minute[10];

intnum;

intnum_text_hour,num_text_minute;

//charnum_str[];

LRESULTCALLBACKWndProc(HWND,UINT,WPARAM,LPARAM);

intWINAPIWinMain(HINSTANCEhInstance,HINSTANCEhPrevInstance,LPSTRlpCmdLine,intnCmdShow)

{

HWNDhWnd;

MSGMsg;

WNDCLASSWndClass;

=CS_HREDRAW|CS_VREDRAW;

dProc=WndProc;

xtra=0;

xtra=0;

nce=hInstance;

=LoadIcon(NULL,IDI_APPLICATION);

r=LoadCursor(NULL,IDC_ARROW);

kground=(HBRUSH)GetStockObject(WHITE_BRUSH);

nuName=NULL;

assName="HelloWin";//窗⼝类名

//注册窗⼝

if(!RegisterClass(&WndClass))

{

MessageBox(NULL,"窗⼝注册失败!","HelloWin",0);

return0;

}

//创建窗⼝

hWnd=CreateWindow("HelloWin","定时关机--junmuzi",WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,

CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL,hInstance,NULL);

//显⽰窗⼝

ShowWindow(hWnd,nCmdShow);

//更新窗⼝

UpdateWindow(hWnd);

//进⼊消息循环：当从应⽤程序消息队列中捡取的消息是WM_QUIT时，则推出循环

while(GetMessage(&Msg,NULL,0,0))

{

TranslateMessage(&Msg);//转换键盘消息

DispatchMessage(&Msg);//分发消息

}

;

}

LRESULTCALLBACKWndProc(HWNDhWnd,UINTmessage,WPARAMwParam,LPARAMlParam)

{

HDChDC;

PAINTSTRUCTPs;

charstrEdit_hour[10],strEdit_minute[10];

staticHWNDhWndButton_ok,hWndButton_cancel,hWndEdit_hour,hWndEdit_minute;

switch(message)

{

caWM_CREATE:

hWndEdit_hour=

CreateWindow("edit",NULL,WS_CHILD|WS_VISIBLE|WS_BORDER,10,60,100,25,hWnd,NULL,NULL,NULL);

hWndEdit_minute=

CreateWindow("edit",NULL,WS_CHILD|WS_VISIBLE|WS_BORDER,180,60,100,25,hWnd,NULL,NULL,NULL);

hWndButton_ok=CreateWindow("button","确定",WS_CHILD|WS_VISIBLE|WS_BORDER,340,60,100,25,

hWnd,NULL,NULL,NULL);

hWndButton_cancel=CreateWindow("button","取消定时关机",WS_CHILD|WS_VISIBLE|WS_BORDER,460,60,100,

25,hWnd,NULL,NULL,NULL);

return0;

caWM_COMMAND:

if(((HWND)lParam==hWndButton_ok)&&(HIWORD(wParam)==BN_CLICKED))

//按下按键hWndButton_ok

{

num_text_hour=GetWindowText(hWndEdit_hour,strEdit_hour,10);//获取编辑框控件hour的内容

//sprintf(str,"Theresultis:%s",strEdit_hour);

//sprintf(hour,"%s",strEdit_hour);

if(num_text_hour==0)

{

MessageBox(NULL,"⼩时不能为空!","错误信息：",MB_OK);

}

num_text_minute=GetWindowText(hWndEdit_minute,strEdit_minute,10);//获取编辑框控件minute的内容

if(num_text_minute==0)

{

MessageBox(NULL,"分钟不能为空!","错误信息：",MB_OK);

}

if(!((atoi(strEdit_hour)>=0)&&(atoi(strEdit_minute)>=0)&&(atoi(strEdit_minute)<=60)))

{

MessageBox(NULL,"⾮法输⼊（输⼊的⼩时必须⼤于等于0，输⼊的分钟必须⼤于等于0,且⼩于等于60）","错误信息：",

MB_OK);

}

if((num_text_hour!=0)&&(num_text_minute!=0)&&(atoi(strEdit_hour)>=0)&&(atoi(strEdit_minute)>=0)

&&(atoi(strEdit_minute)<=60))

{

num=atoi(strEdit_hour)*3600+atoi(strEdit_minute)*60;//把⼩时和分钟数转化为多少秒

//itoa(num,num_str,10);

//sprintf(str,"Theresultis:%s",strEdit_minute);

//sprintf(minute,"%s",strEdit_minute);

//strcat(cmd,str_);

//sprintf(cmd,"shutdown-s-t%s%s%d",strEdit_hour,strEdit_minute,num);

sprintf(cmd,"shutdown-s-t%d",num);//定时关机命令

sprintf(str,"电脑会在%s⼩时%s分钟后关机",strEdit_hour,strEdit_minute);

system(cmd);//shutdownthecomputer.

InvalidateRect(hWnd,NULL,TRUE);

}

}

if(((HWND)lParam==hWndButton_cancel)&&(HIWORD(wParam)==BN_CLICKED))

//按下按键hWndButton_cancel

{

sprintf(cmd,"shutdown-a");//取消定时关机

sprintf(str,"电脑定时关机被取消");

system(cmd);//cancel”shutdownthecomputer“.

InvalidateRect(hWnd,NULL,TRUE);

}

caWM_PAINT://设计编辑框

hDC=BeginPaint(hWnd,&Ps);

TextOut(hDC,10,10,"请输⼊你要设置的多长时间后关机（⼩时和分钟数）：",48);

TextOut(hDC,120,60,"⼩时",4);

TextOut(hDC,290,60,"分钟",4);

//TextOut(hDC,10,90,str,strlen(str));

TextOut(hDC,10,90,str,strlen(str));

EndPaint(hWnd,&Ps);

return0;

caWM_DESTROY:

PostQuitMessage(0);

return0;

}

returnDefWindowProc(hWnd,message,wParam,lParam);

}