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This is a discussion on Keyboard within the C++ Programming forums, part of the General Programming Boards category; Can you tell me how i could get my program to recognise when the user presses any arrow key up,down,left,right?...

  1. #1
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    Keyboard

    Can you tell me how i could get my program to recognise when the user presses any arrow key up,down,left,right?

  2. #2
    I'm Back
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    Dec 2001
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    556
    you could use the bioskey(0); function in bios.h to see the interger value of the keys

    an eg program

    ----------
    #include<iostream.h>
    #include<conio.h>
    #include<bios.h>

    void main()
    {
    int key;
    clrscr();

    cout<<"Press any key...";
    key=bioskey(0);
    cout<<"\ninteger value : "<<key;

    getch();
    }
    --------

    like if you pressed enter it will give 7181 as output.

    use for loop to see for all keys.

    Hope this helps..

  3. #3
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    Dev c++ doesn't seem to have

    bios.h any other way?

  4. #4
    S­énior Member
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    982
    This should work on Dev C++ -

    Code:
    #include <iostream>
    #include <windows.h>
    using namespace std;
    
    
    int main()
    {
    
    	while(1)
    	{
    	
    		if(GetAsyncKeyState(VK_UP))
    			cout << "UP"<<endl;
    		if(GetAsyncKeyState(VK_DOWN))
    			cout << "DOWN"<<endl;
    
    		//etc
    	}
    	
    
       return 0;
    }

  5. #5
    Flash Animator, OF DOOOOM bluehead's Avatar
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    Nov 2001
    Posts
    269
    #include <iostream.h>
    #include <conio.h>
    //There may be others im not sure....

    int main()
    {
    while(1)
    {
    char key = getch();

    if (key == 27) //This is ascii code for ESC (what you use)
    break;

    }
    return 0;
    }



    Tell me if i helped
    Code:
    #if _emo
      #define stereo_type_i_dislike
    #endif

  6. #6
    Registered User JTtheCPPgod's Avatar
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    Dec 2001
    Posts
    44
    Originally posted by Sorensen
    This should work on Dev C++ -

    Code:
    #include <iostream>
    #include <windows.h>
    using namespace std;
    
    
    int main()
    {
    
    	while(1)
    	{
    	
    		if(GetAsyncKeyState(VK_UP))
    			cout << "UP"<<endl;
    		if(GetAsyncKeyState(VK_DOWN))
    			cout << "DOWN"<<endl;
    
    		//etc
    	}
    	
    
       return 0;
    }
    would that work in VC++?
    "No! I must have my delicious cupcakes, my sweet cakey treasures, piping hot from their 40 watt WOMB!!!"
    --Captain Murphy

  7. #7
    ¡Amo fútbol!
    Join Date
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    2,136
    just out of curiosity, why don't u try it and find out??

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