Thread: reading keystrokes

It's not "extra stuff", it's part of the code you need. It's not just one line to do this - it's about 15-20 lines. So you need all of this:

Code:

// Code supplied by LuckY

#include <iostream> 
#include <windows.h> 

bool keyHit(void)
{
  HANDLE  stdIn = GetStdHandle(STD_INPUT_HANDLE);

  DWORD   saveMode;
  GetConsoleMode(stdIn, &saveMode);
  SetConsoleMode(stdIn, ENABLE_PROCESSED_INPUT);

  bool  ret = false;

  if (WaitForSingleObject(stdIn, 1) == WAIT_OBJECT_0) ret = true;

  SetConsoleMode(stdIn, saveMode);

  return(ret);
}

bool getChar(TCHAR &ch)
{
  bool    ret = false;

  HANDLE  stdIn = GetStdHandle(STD_INPUT_HANDLE);

  DWORD   saveMode;
  GetConsoleMode(stdIn, &saveMode);
  SetConsoleMode(stdIn, ENABLE_PROCESSED_INPUT);

  if (WaitForSingleObject(stdIn, INFINITE) == WAIT_OBJECT_0)
  {
    DWORD num;
    ReadConsole(stdIn, &ch, 1, &num, NULL);

    if (num == 1) ret = true;
  }

  SetConsoleMode(stdIn, saveMode);

  return(ret);
}

TCHAR getChar(void)
{
  TCHAR ch = 0;
  getChar(ch);
  return(ch);
}

int main(void)
{
  std::cout << "Press a key" << std::endl;
  getChar();
  std::cout << "Done" << std::endl;
}

--
Mats

Originally Posted by h3ckf1r3

you were almost right it was getchar(x) but you were really close

Since the code is C++, it implements two functions:
bool getChar(TCHAR &ch);
TCHAR getChar(void);

The latter will work with what I wrote, whilst the former will work as you write it. Obvioulsy, calling just getChar() without assigning the return value to anything will not work.

--
Mats