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HKEY hKey;
long lRet;
LPCTSTR lpSubkey;
BYTE keyvalue = 1;
DWORD dwaaa = 10;
lpSubkey = L"Software\\Microsoft\\Clock\\0\\";
lRet = RegOpenKeyExW(HKEY_LOCAL_MACHINE, lpSubkey, 0, 0, &hKey);
if(lRet!=ERROR_SUCCESS) //如果无法打开hKEY,则终止程序的执行
{
MessageBox(NULL, L"Error", NULL, MB_OKCANCEL);
return 1;
}
lRet = RegSetValueExW(hKey, L"AlarmFlags", 0, REG_BINARY, &keyvalue, 1);
RegCloseKey(hKey);