C / C++ / MFC

void CMenuTestDlg::OnMenuButton() 
{
  CMenu * sysMenu = GetSystemMenu(FALSE);
  if(sysMenu != NULL){
    int menuID=sysMenu->
      TrackPopupMenu(TPM_LEFTALIGN | TPM_LEFTBUTTON |TPM_RIGHTBUTTON |
                     TPM_NONOTIFY | TPM_RETURNCMD, 40,40, this);
    if(menuID){
      SendMessage(WM_SYSCOMMAND,menuID,0);
    }    
  }
}

#include <stdio.h>
#include <stdlib.h>
 
bool my_precious_parser(const char* str,int& prefix,int& suffix)
{
  char str_prefix[1024]="0",str_suffix[1024];
  if(
    sscanf(
      str,
      "%[012345689]d%[0123456789]",
      str_prefix,str_suffix)!=2 &&
    sscanf(
      str,
      "d%[0123456789]",
      str_suffix)!=1){
    return false;
  }
  prefix=atoi(str_prefix);
  suffix=atoi(str_suffix);
  return true;
}

#include <io.h>
 
inline bool dir_exists(const char* str)
{
  return _access(str,0)==0;
}

bool DoesDirectoryExist(LPCTSTR inputPath)
{
  bool bRet = false;
  DWORD dwRc = ::GetFileAttributes(inputPath);

  if (dwRc == 0xFFFFFFFF)
  {
    // Directory does not exist.
    bRet = false;
  } else if(dwRc & FILE_ATTRIBUTE_DIRECTORY)
  {
    bRet = true;
  } else
  {
    // File exists, but is not a directory
    bRet = false;
  }

  return bRet;
}