ASCII Codes

This is a discussion on ASCII Codes within the C++ Programming forums, part of the General Programming Boards category; Does anyone know the ASCII Codes for the arrow keys? If it helps i'm using Borland on a Windows O/S, ...

  1. #1
    Student drdroid's Avatar
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    Question ASCII Codes

    Does anyone know the ASCII Codes for the arrow keys? If it helps i'm using Borland on a Windows O/S, in console mode.

  2. #2
    Code Goddess Prelude's Avatar
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    My best code is written with the delete key.

  3. #3
    Its not rocket science vasanth's Avatar
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    It is as follows


    up arrow 0x48
    down arrow 0x50
    left arrow 0x4b
    right arrow 0x4d

  4. #4
    Registered User Liam Battle's Avatar
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    UP_KEY 1072
    DOWN_KEY 1080
    LEFT_KEY 1075
    RIGHT_KEY 1077

    Those are the key numbers you are looking for in borland
    LB0: * Life once school is done
    LB1: N <- WakeUp;
    LB2: N <- C++_Code;
    LB3: N >= Tired : N <- Sleep;
    LB4: JMP*-3;

  5. #5
    Student drdroid's Avatar
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    Question Question:

    It doesn't sense the grey keys... What do I have to do?

  6. #6
    Registered User Dual-Catfish's Avatar
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    Grey keys? I assume you mean the numpad..
    I believe they're 100, 102, 104 and 106... I'm not sure in which order though.

  7. #7
    Seņor Member
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    Code:
    #include  <iostream.h>
    #include <conio.h>
    int main()
    {
       char a = getch();
       //press one of the arrow keys
       cout << "The ASCII value for the button you pressed is " << int(a);
       return 0;
    }

  8. #8
    Student drdroid's Avatar
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    Main?

    What about the main arrow keys?

  9. #9
    Seņor Member
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    Look at the program I just wrote. You can get the ASCII of any button. Just compile it.

  10. #10
    Student drdroid's Avatar
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    Nope

    It doesn't show it for the arrow keys next to the main part of the keyboard... The ones that don't use the num keys... any body?

  11. #11
    Student drdroid's Avatar
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    Question Hello?

    Noone's responded in a while... Help!!!???
    I Repeat question yes???

    It doesn't show it for the arrow keys next to the main part of the keyboard... The ones that don't use the num keys... any body?

    or

    Does anyone know the code for the main arrow keys?

  12. #12
    Registered User
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    Here is what I use.
    However Im using MSVC++ although it should still work for you.

    Code:
    #include <iostream.h>
    #include <conio.h> // for _kbhit and getch()
    
    int main()
    {
    	char key;
    	int iKey;
    	bool endprog = false;
    
    	do
    	{
    		if(_kbhit())//if a key is in the buffer
    		{
    			key = getch();//then get the key
    			iKey = key;
    
    			cout<<"key: "<<key<<" iKey: "<<iKey<<endl;
    
    			if(key == 'Q' || key == 'q')
    				endprog = true;
    		}
    
    	}while(!endprog);
    
    	return 0;
    }
    note that when you press a function key, arrow key, or any other special key it will display twice because all of the non alphabetic keys send two hits to the input buffer.

    Also you might want to check your Borland documentation for allready defined constants. For example in MSVC++ the enter key is VK_RETURN.

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