Do you know any alternative to the getch() function? because it's from the Conio library (which is not standard) and I would like to know if there is any standard alternative for C ++.
I have this code:
do
{
tecla = getch();
} while (tecla != TECLA_ARRIBA && tecla != TECLA_ABAJO && tecla != ENTER);
I do not want a break, I want to capture data like the example code.
Note: or otherwise, any code that emulates the function?
I understand that what you want is to read the direct inputs of the keys, without going through the buffer input std::cin .
In that case, the answer is simple: no There is a standard way, since it depends on the operating system you use.
If you're in the console emulation of Windows, you know what to use: conio.h
If you use a graphical application, you have no choice but to resort to the system of events provided by the operating system, or the library of highest level you use.
The most portable mode would be using the ncurses library. Although it is native to * nix systems, it can be used in Windows terminal emulators. In chapter 11 of NCURSES Programming HOWTO , Interfacing with the keyboard , you have a complete example.
As a last option, if you are in Linux, you can set the keyboard in raw mode, directly accessing the events it generates. You have a complete example in Grab Raw Keyboard Input .
You can not do what you want. At least not pulling the C ++ standard.
C ++ understands neither keyboards nor consoles but standard input and standard output. This change of concept, although it may seem trivial has its implications:
The only option left for you is to pull OS-dependent libraries to perform this task: conio.h (Windows), ncurses (Linux), pdcurses (Windows),
etc.
You can use cin.get( ); of the library iostream and make available the objects cin, cout .
example:
#include <iostream.h>
int main()
{
std::cout << "Hola mundo";
std::cin.get();
return 0;
}