Using TextOut to display variables

This is a discussion on Using TextOut to display variables within the Windows Programming forums, part of the Platform Specific Boards category; I searched google for this a couple of different times,rephrasing my search query. I have an int variable and need ...

  1. #1
    C++ Enthusiast jmd15's Avatar
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    Using TextOut to display variables

    I searched google for this a couple of different times,rephrasing my search query. I have an int variable and need to display it on a window. I know there is a way you can format the variable so you can pass it to the TextOut function. I was wondering if anybody knew how to format the variable so TextOut will accept it? I tried this code but it doesn't display it, it compiles though:
    Code:
    TextOut(hDC,x,y,(LPCTSTR)clicks,2);
    clicks is my int variable and x and y are the position. That code compiles but it doesn't show the variable on the window?
    A different way is acceptable as well. Thanks.
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    Look up sprintf
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    C++ Enthusiast jmd15's Avatar
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    I have and tried it but always get these errors:

    passing `const TCHAR *' as argument 1 of `sprintf(char *, const char *, ...)' discards qualifiers

    passing `int' to argument 2 of `sprintf(char *, const char *, ...)' lacks a cast

    But I'm pretty sure the way I have seen it done before was using sprintf or some similar function. This is what I passed to sprintf: for the buffer to receive the formatted string I used a variable of type LPCTSTR, TextOut accepts that kind of variable, and the second argument of sprintf I passed my int variable that needs formatting. I just used NULL for the last argument. Thanks for the suggestion though.
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  4. #4
    It's full of stars adrianxw's Avatar
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    sprintf() updates the contents of the first parameter, thus it cannot be declared as const. It expects a formatting string as the second argument, not an integer.

    char SomeBuffer[20];
    int SomeNumber = 5;
    sprintf(SomeBuffer, "%d", SomeNumber);
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  5. #5
    C++ Enthusiast jmd15's Avatar
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    Thank you that answered my question and solved my problem.
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