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#include<Windows.h>

#include<tchar.h>

#include"resource1.h"

#pragma warning(disable:4996)

BOOL EnableShutDownPriv()

{

	HANDLE hToken = NULL;

	TOKEN_PRIVILEGES tkp = {0};

	//打开当前程序的权限令牌

	if (!OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY,&hToken))

	{

		return FALSE;

	}

	if (!LookupPrivilegeValue(NULL,SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid))

	{

		CloseHandle(hToken);

		return FALSE;

	}

	tkp.PrivilegeCount = 1;

	tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;

	if (!AdjustTokenPrivileges(hToken,FALSE,&tkp,sizeof(TOKEN_PRIVILEGES),NULL,NULL))

	{

		CloseHandle(hToken);

		return FALSE;

	}

	return true;

}

//winMain是一个win32程序的入口点，

//程序入口点：	1.console程序的入口点函数 main

//				2.win32程序的入口点函数   WinMain

//				3.dll32程序的入口点函数   DllMain

//				4.服务程序的入口点函数    ServiceMain

//				5.驱动程序入口点函数      Driver

//參数1，HINSTANCE hInstance 应用程序实例句柄

//參数2。HINSTANCE hPrevInstance前一个程序实例

//參数3。LPSTR lpCmdLine 是一个用户运行应用程序时传入的參数

//參数4，int nShowCmd假设有窗体以什么形态显示窗体，最大化，最小化

//reset window  status 又一次设置window状态

/*

C4996以前不是警告么？如今升级啦？

尝试这个

1.Project Properties > Configuration Properties > C/C++ > General > SDL checks关掉

其它方法：

2.#pragma warning(disable: 4996)

3。

/wd 4996

*/

BOOL ReSetWindow(DWORD dwFlag, BOOL bForce)

{

	//推断又一次设置的标志

	switch (dwFlag)

	{

	case EWX_LOGOFF:

	case EWX_REBOOT:

	case EWX_SHUTDOWN:

	case EWX_POWEROFF:

		break;

	default:

		return FALSE;

	}

	//获取电脑系统版本号

	OSVERSIONINFO osvi = { 0 };

	osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);

	if (!GetVersionEx(&osvi))

	{

		return FALSE;

	}

	DWORD highVersion;

	DWORD lowVersion;

	//获取主版本号号

	highVersion = osvi.dwMajorVersion;

	//获取次版本号号

	lowVersion = osvi.dwMinorVersion;

	DWORD plat = osvi.dwPlatformId;

	if (plat == VER_PLATFORM_WIN32_NT)

	{

		EnableShutDownPriv();

	}

	//在window中通常是占领不同的位数表示不同的值，一般通过|来获取两个或两个以上的效果

	dwFlag = bForce ?

dwFlag | EWX_FORCE : dwFlag|EWX_FORCEIFHUNG;

	ExitWindowsEx(dwFlag, 0);

}

INT_PTR CALLBACK DialogProc(

	_In_  HWND hwndDlg,

	_In_  UINT uMsg,

	_In_  WPARAM wParam,

	_In_  LPARAM lParam

	)

{

	TCHAR  tStr[20] = { 0 };

	switch (uMsg)

	{

	case WM_INITDIALOG:

	{

						  //获取窗体句柄

						  HWND hComBox = GetDlgItem(hwndDlg, IDC_COMBO1);

						  //往combobox中插入值

						  SendMessage(hComBox, CB_INSERTSTRING, 0, (LPARAM)_T("注销"));

						  SendMessage(hComBox, CB_INSERTSTRING, 1, (LPARAM)_T("重新启动"));

						  SendMessage(hComBox, CB_INSERTSTRING, 2, (LPARAM)_T("关机"));

						  //选择button

						  SendMessage(hComBox, CB_SELECTSTRING, 0, (LPARAM)_T("注销"));

						  //获取屏幕大小

						  int witdh = GetSystemMetrics(SM_CXSCREEN);

						  int height = GetSystemMetrics(SM_CYSCREEN);

						  RECT rect;

						  GetWindowRect(hwndDlg, &rect);

						  //获取对话框的大小

						  int dlgW = rect.right - rect.left;

						  int dlgH = rect.top = rect.bottom;

						  //设置窗体位置

						  SetWindowPos(hwndDlg, 0, witdh / 2 - dlgW / 2, height / 2 - dlgH / 2, dlgW, dlgH, SWP_SHOWWINDOW);

	}

		break;

	case WM_COMMAND:

	{

					   switch (wParam)

					   {

					   case IDOK:

						   GetDlgItemText(hwndDlg, IDC_COMBO1, tStr, 20);

						   if (wcscmp(tStr, _T("注销")))

						   {

							   ReSetWindow(EWX_LOGOFF, FALSE);

						   }

						   else if (wcscmp(tStr, _T("重新启动")))

						   {

							   ReSetWindow(EWX_REBOOT, FALSE);

						   }

						   else if (wcscmp(tStr, _T("关机")))

						   {

							   ReSetWindow(EWX_SHUTDOWN, FALSE);

						   }

						   break;

					   case IDCANCEL:

						   if (MessageBox(NULL,_T("是否关闭"),_T("提示"),MB_OKCANCEL)==IDOK)

						   {

							   EndDialog(hwndDlg, IDCANCEL);

						   }

						   break;

					   default:

						   break;

					   }

	}

		break;

	default:

		break;

	}

	return 0;

}

int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)

{

	if (strcmp(lpCmdLine, "/r") == 0)

	{

		ReSetWindow(EWX_REBOOT, FALSE);

	}

	else if (strcmp(lpCmdLine,"/f")==0)

	{

		ReSetWindow(EWX_LOGOFF, FALSE);

	}

	else if (strcmp(lpCmdLine,"/s")==0)

	{

		ReSetWindow(EWX_SHUTDOWN, FALSE);

	}

	else

	{

		DialogBox(hInstance,MAKEINTRESOURCE(IDD_DIALOG1),NULL,DialogProc);

	}

	return 0;

}