I don't understand GetChar() very well

[Ahmed Shendy]

Hello,

I didn't understand well the GetChar() function. Could anyone please explain it in more details.

I tried to comment this like

"GetChar() GetChar() # End of line"

but I got behavior I could not understand.

--

Thanks,

Shendy

[amr ESSAM]

What behavior you didn't understnad ?

and btw you can check this link about inputs, http://wp.me/p7aUcp-9u.

[Ahmed Shendy]

Why the line I comment it makes difference in the output?

[amr ESSAM]

It actually doesn't, i didn't understand too but when i tried i saw no difference in the results.

[Mahmoud Fayed]

Hello Ahmed

The GetChar() function accept one character from the keyboard buffer

In this example

While True
        See "
                Main Menu
                (1) Say Hello
                (2) Exit
            "
        Option = GetChar()

        GetChar() GetChar()  # End of line

        # the previous two lines can be replaced with the next line
        # Give Option

        if Option = 1
                see "Enter your name : " give cName
                see "Hello " + cName
        else
                bye
        ok
End

We uses GetChar() Three times
The first time we get the user option

Option = GetChar() 

But in the second and the third time (We accept the new line characters from the buffer)

GetChar() GetChar()  # End of line

Example : when the user select the option number 1 then press ENTER
We have Three Characters
The first character is : Number 1
The second character is : CHAR(13)
The third character is : CHAR(10)
because Windows uses CHAR(13) and CHAR(10) for new line  ( i.e. CR+LF )

Greetings,
Mahmoud

[Ahmed Shendy]

There is a difference in how output displayed on console

[Ahmed Shendy]

Hello Eng.Mahmoud,

Now I understand it.

[Mahmoud Fayed]

You are welcome :D

Greetings,
Mahmoud