alt+ 0176

[phongvants123]

when i use getch() ,i can not input alt+0176 and stuff like that.But i can do it with cin>>something...i do believe facebook or any game still accept alt+0176 (symbol like this °) eventhough that is password

#include<iostream>
using namespace std;

#include<conio.h>
int main() {

char a;
bool b=true;

while(b)
{
	cout<<getch();// can not input alt+0176
}
}

[JayhawkZombie]

Use std::cin.get

For example:

char c;
std::cin.get(c);
std::cout << "Got \'" << c << "\'";

Produces:

º
Got 'º'

on my system

[phongvants123]

don't get me wrong ... the reason i use getch() because it can hide the character so that i can use it for my password

[Cubbi]

neither conio.h nor getch() are part of C++ (or C), so we are left to guess what you're programming for. I'll try to guess.

Since Linux (and other Unix systems) define their getch() in curses.h, this must be MS-DOS (where it is defined in conio.h) or Windows (which mantains a conio.h for backwards compat with ancient source code)

Guessing this is for Windows, MSDN page for getch() says nothing about how this function deals with the Alt-code input. I am guessing since it predates Windows, it may simply not support it.

If that guess is right, try a WinAPI system call instead of MS-DOS:

#include <iostream>
#include <windows.h>
int main() {
	HANDLE handle = GetStdHandle(STD_INPUT_HANDLE);
	while (true) {
		DWORD events = 1;
		INPUT_RECORD buffer;
		ReadConsoleInput(handle, &buffer, 1, &events);
// this will trigger on key-up events for regular keys and also on the key-up of the alt 
// after entring a Windows Alt-code
		if (!buffer.Event.KeyEvent.bKeyDown
			&& !(buffer.Event.KeyEvent.dwControlKeyState & RIGHT_ALT_PRESSED)
			&& !(buffer.Event.KeyEvent.dwControlKeyState & LEFT_ALT_PRESSED))
		{
			std::wcout << buffer.Event.KeyEvent.uChar.UnicodeChar << '\n';
		}
	}
}

[phongvants123]

your code doesnt work...i use win 7 32 bit dev-c++

[Cubbi]

So my guess was close, but not quite right (I assumed Visual Studio, which is where that demo was tested). It really helps to mention the environment when using non-standard features to find people familiar with them.