Question

如何用C或者C++编写一个电脑强制关机程序

Answer 1

#include <Windows.h>
#include <tchar.h>
#include <assert.h>TCHAR* szQuestion=TEXT("1000*10等于多少?");
TCHAR* szAnswer=TEXT("10000");
WNDPROC oldEditProc=NULL;
WNDPROC oldButtonProc=NULL;
HFONT hFont=NULL;
HWND hTestDlgWnd=NULL,hEditWnd=NULL,hButtonWnd=NULL;
LRESULT CALLBACK TestDlgProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam);
LRESULT CALLBACK MyEditProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam);
LRESULT CALLBACK MyButtonProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam);
BOOL SystemReboot();int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
{
WNDCLASS wndclass={0};
TCHAR* szClassName=TEXT("TestDlg");
MSG msg={0}; COLORREF color=GetSysColor(COLOR_ACTIVEBORDER);
HBRUSH hBrush=CreateSolidBrush(color);
assert(hBrush); hFont=(HFONT)GetStockObject(DEFAULT_GUI_FONT);
LOGFONT logfont={0};
GetObject(hFont,sizeof(LOGFONT),&logfont);
DeleteObject(hFont);
hFont=NULL;
logfont.lfHeight=12;
_tcscpy(logfont.lfFaceName,TEXT("宋体"));
hFont=CreateFontIndirect(&logfont);
assert(hFont); wndclass.style=CS_NOCLOSE;
wndclass.hInstance=hInstance;
wndclass.hbrBackground=hBrush;
wndclass.hCursor=LoadCursor(NULL,MAKEINTRESOURCE(IDC_ARROW));
wndclass.hIcon=LoadIcon(NULL,MAKEINTRESOURCE(IDI_APPLICATION));
wndclass.cbWndExtra=0;
wndclass.cbClsExtra=0;
wndclass.lpfnWndProc=TestDlgProc;
wndclass.lpszMenuName=NULL;
wndclass.lpszClassName=szClassName;

if (!RegisterClass(&wndclass))
{
MessageBox(NULL,TEXT("窗口注册失败!"),TEXT("警告"),MB_OK);
return S_FALSE;
} DWORD style=WS_OVERLAPPEDWINDOW &~ (WS_MAXIMIZEBOX | WS_MINIMIZEBOX | WS_THICKFRAME);
int cx=GetSystemMetrics(SM_CXFULLSCREEN);
int cy=GetSystemMetrics(SM_CYFULLSCREEN);
int iTestDlgWidth=500;
int iTestDlgHeight=230;
hTestDlgWnd=CreateWindowEx(WS_EX_TOOLWINDOW,
szClassName,
TEXT("请回答题目："),
style,
cx/2-iTestDlgWidth/2,
cy/2-iTestDlgHeight/2,
iTestDlgWidth,
iTestDlgHeight,
NULL,
NULL,
hInstance,
NULL);
assert(hTestDlgWnd);
::SendMessage(hTestDlgWnd,WM_SETFONT,(WPARAM)hFont,1); style=WS_CHILD | ES_MULTILINE | ES_LEFT | ES_AUTOHSCROLL | ES_AUTOVSCROLL;
hEditWnd=CreateWindow(
TEXT("Edit"),
TEXT(""),
style,
10,
40,
iTestDlgWidth-20,
100,
hTestDlgWnd,
NULL,
hInstance,
0
);
assert(hEditWnd);
oldEditProc=(WNDPROC)SetWindowLong(hEditWnd,GWL_WNDPROC,(LONG)MyEditProc);
assert(oldEditProc);
::SendMessage(hEditWnd,WM_SETFONT,(WPARAM)hFont,1); style=WS_CHILD;
hButtonWnd=CreateWindow(TEXT("Button"),
TEXT("确定"),
style,
10,
150,
60,
20,
hTestDlgWnd,
NULL,
hInstance,
0
);
assert(hButtonWnd);
oldButtonProc=(WNDPROC)SetWindowLong(hButtonWnd,GWL_WNDPROC,(LONG)MyButtonProc);
assert(oldButtonProc);
::SendMessage(hButtonWnd,WM_SETFONT,(WPARAM)hFont,1); ShowWindow(hTestDlgWnd,SW_SHOW);
ShowWindow(hEditWnd,SW_SHOW);
ShowWindow(hButtonWnd,SW_SHOW);
UpdateWindow(hTestDlgWnd); ::SetFocus(hEditWnd);
while (GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
if(hBrush)
DeleteObject(hBrush);
if(hFont)
DeleteObject(hFont);
return msg.wParam;
}LRESULT CALLBACK TestDlgProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
switch(message)
{
case WM_CLOSE:
{
DestroyWindow(hWnd);
}
break;
case WM_DESTROY:
{
PostQuitMessage(0);
}
break;
case WM_PAINT:
{
PAINTSTRUCT ps={0};
HDC hDC=NULL;
hDC=BeginPaint(hWnd,&ps);
HFONT hOldFont=(HFONT)SelectObject(hDC,hFont);
int oldMode=SetBkMode(hDC,TRANSPARENT);
TextOut(hDC,10,5,szQuestion,_tcslen(szQuestion));
SelectObject(hDC,hOldFont);
SetBkMode(hDC,oldMode);
EndPaint(hWnd,&ps);
}
break;
}
return DefWindowProc(hWnd,message,wParam,lParam);
}LRESULT CALLBACK MyEditProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
return (*oldEditProc)(hWnd,message,wParam,lParam);
}LRESULT CALLBACK MyButtonProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
switch(message)
{
case WM_LBUTTONDOWN:
{
TCHAR buf[512]={0};
GetWindowText(hEditWnd,buf,512); if (!_tcscmp(buf,szAnswer))
{
MessageBox(hWnd,TEXT("你回答正确了！"),TEXT("提示"),MB_OK);
::SendMessage(hTestDlgWnd,WM_CLOSE,0,0);
}
else
{
MessageBox(hWnd,TEXT("你回答错误！请做好接受惩罚准备！！"),TEXT("提示"),MB_OK);
SystemReboot();
}
}
break;
}
return (*oldButtonProc)(hWnd,message,wParam,lParam);
}BOOL SystemReboot()
{
HANDLE hToken;
TOKEN_PRIVILEGES tkp;
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
{
return(FALSE);
}
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &tkp.Privileges[0].Luid);
tkp.PrivilegeCount = 1;
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0); if (GetLastError() != ERROR_SUCCESS)
{
return FALSE;
} if (!ExitWindowsEx(EWX_REBOOT, 0))
{
return FALSE;
}
return TRUE;
} 修改问题和答案在TCHAR* szQuestion=TEXT("1000*10等于多少?");
TCHAR* szAnswer=TEXT("10000");
设置即可