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Thread: show build date in about box

  1. #1
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    Default show build date in about box

    Hi,

    I have two questions :
    - How can i obtain the build date of an application ? I would like to show this in the about box.
    - Is there something like a build number that increments with every build ? I could show this in the about box too.

    Thanks for any suggestions.

    Cedric.

  2. #2
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    Default Re: show build date in about box

    Quote Originally Posted by glocker50 View Post
    I have two questions :
    - How can i obtain the build date of an application ? I would like to show this in the about box.
    You can use qmake to define a macro with the current date or #include a file which defines such a macro.

    For example add such a line to your project file:

    DEFINES += "BUILDDATE=system(date -R)"

    And then in your app create a string containing the date:

    Qt Code:
    1. QString dat = QString::fromLocal8Bit(BUILDDATE);
    To copy to clipboard, switch view to plain text mode 

    - Is there something like a build number that increments with every build ? I could show this in the about box too.
    Not out of the box, but you can simulate it using qmake as well.

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    Default Re: show build date in about box

    Didn't you forget the $$? I can't test it for linux right now but to make it work for winxp as well it should be:
    Qt Code:
    1. win32:DEFINES += BUILDDATE=$$system(date /t)
    To copy to clipboard, switch view to plain text mode 
    Last edited by spud; 16th January 2007 at 02:12. Reason: missing [code] tags

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    Default Re: show build date in about box

    Why not just use the __DATE__ and __TIME__ defines. AFAIK they are available in gcc and whatever windows calls their compiler

  5. The following user says thank you to ndastur for this useful post:

    BrainB0ne (16th January 2012)

  6. #5
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    Default Re: show build date in about box

    it is working fine i want in 12 hour format it is 24hour format how i can set.....

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    Default Re: show build date in about box

    Pass the string to a parsing function and reformat the output the way you want. See QDateTime::fromString() and QDateTime::toString()
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


  8. #7
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    Default Re: show build date in about box

    program compile time in 24 hour format .... should show in 12hour format
    send sample code it is usefull....

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    Default Re: show build date in about box

    Quote Originally Posted by mouni View Post
    send sample code it is usefull....
    You forgot "please".
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


  10. #9
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    Default Re: show build date in about box

    it s nt possible


    Added after 1 6 minutes:


    anybody tell me how to set....
    Last edited by mouni; 30th April 2015 at 12:35.

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    Default Re: show build date in about box

    Qt Code:
    1. int hoursIn12HourFormat = (hours > 12 ? hours - 12 : hours);
    To copy to clipboard, switch view to plain text mode 

    You're welcome.

    Edit: and here's something else for free:

    Qt Code:
    1. QString suffix = (hours > 12 ? "PM" : "AM");
    2. int hoursIn12HourFormat = (hours > 12 ? hours - 12 : hours);
    To copy to clipboard, switch view to plain text mode 
    Last edited by d_stranz; 30th April 2015 at 16:57.

  12. #11
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    Default Re: show build date in about box

    LOL Really
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


  13. #12
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    Default Re: show build date in about box

    i used __Time__ macro how can i declare to string ...

  14. #13
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    Default Re: show build date in about box

    __TIME__

    It might be easier for you if you simply posted the requirements for whatever program you're trying to write and let us write it for you. Or maybe just learn how to write C++ programs before trying to write a C++ program.

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