Probably simple question: Displaying int's

This is a discussion on Probably simple question: Displaying int's within the Windows Programming forums, part of the Platform Specific Boards category; I'm using DrawText to write some text to my screen. I need to also show some integers, but that function ...

  1. #1
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    Probably simple question: Displaying int's

    I'm using DrawText to write some text to my screen. I need to also show some integers, but that function only takes in Strings.

    So I guess my question is either one of the two:
    1) how do I convert an int to a string?
    or
    2) is there some better function to use to show text in windows? A function that can also show ints...

    Thank you!

    Nimit

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    Re: Probably simple question: Displaying int's

    Originally posted by conright
    I'm using DrawText to write some text to my screen. I need to also show some integers, but that function only takes in Strings.

    So I guess my question is either one of the two:
    1) how do I convert an int to a string?
    or
    2) is there some better function to use to show text in windows? A function that can also show ints...

    Thank you!

    Nimit
    You'll need to convert the integer into a string. Here is a quick example. The function you need is sprintf

    Code:
    char buffer[256] = { 0 };
    int nNumber = 123;
    
    sprintf( buffer, "The number is %d", nNumber );
    Then you will use TextOut or DrawText to display buffer and it will display "The number is 123". Hope this helps.

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    int i;
    char a[10];

    TextOut(hdc, x, y, a, wsprintf(a, "%d", i));

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    Unregistered Leeman_s's Avatar
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  5. #5
    Banned frenchfry164's Avatar
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    someone told me you shouldn't use itoa, can someone explain to me why?

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    Registered User AtomRiot's Avatar
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    you can use it like this
    Code:
    itoa(x,chBuffer,10);
    x is an int chBuffer is a char array and 10 is the base

    it works fine for me, i use it a few times in a prog and have not had any trouble with it
    All Your Base Are Still Belong to Someone!!!
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    Banned frenchfry164's Avatar
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    I used a bunch in a text-based game I made, and never had a problem. I was just wondering, since we are kinda on the topic.

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    Originally posted by frenchfry164
    someone told me you shouldn't use itoa, can someone explain to me why?

    itoa is not standard, so you aren't always going to have access to it, decreasing the portablility of you code. Use sprintf or a stringstream (or write your own function)

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    For the record -- use wsprintf if programming for Windows, which I assume you are if you're having problems printing ints.

    Using wsprintf and TextOut correctly looks like this:

    Code:
    int score = 0;
    char chScore[] = "Score: %d";
    char scoreString[20];
    
    wsprintf(scoreString, chScore, score);
    
    TextOut(hdc, x, y, scoreString, strlen(scoreString));

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