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Forum Update on Monday, May 27th 2025

Qt Console Application - Print colored text

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printcolorconsole
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  • ? A Former User
    13 Aug 2016, 13:09

    Hi! Works for me. What's your operating system?

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    AliReza Beytari
    wrote on 13 Aug 2016, 17:15 last edited by
    #3

    @Wieland Windows 10.0.10586

    ? 1 Reply Last reply 13 Aug 2016, 17:19
    0
    • A AliReza Beytari
      13 Aug 2016, 17:15

      @Wieland Windows 10.0.10586

      ? Offline
      ? Offline
      A Former User
      wrote on 13 Aug 2016, 17:19 last edited by
      #4

      @AliReza-Beytari Ah, ok. I'm on Linux. Where did you read about the terminal codes? My strong guess would be, that these are codes for a Linux terminal emulator.

      A 1 Reply Last reply 13 Aug 2016, 17:31
      1
      • ? A Former User
        13 Aug 2016, 17:19

        @AliReza-Beytari Ah, ok. I'm on Linux. Where did you read about the terminal codes? My strong guess would be, that these are codes for a Linux terminal emulator.

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        AliReza Beytari
        wrote on 13 Aug 2016, 17:31 last edited by
        #5

        @Wieland I had used these ascii codes in one of my Python applications and it worked for windows and linux.

        M 1 Reply Last reply 13 Aug 2016, 17:37
        0
        • A AliReza Beytari
          13 Aug 2016, 17:31

          @Wieland I had used these ascii codes in one of my Python applications and it worked for windows and linux.

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          mrjj
          Lifetime Qt Champion
          wrote on 13 Aug 2016, 17:37 last edited by mrjj
          #6

          @AliReza-Beytari
          but dont python comes with its own shell? (or command prompt)

          Anyway, you can hax the prompt to support colors
          https://web.liferay.com/web/igor.spasic/blog/-/blogs/enable-ansi-colors-in-windows-command-prompt

          not tried in win 10. only win 7.
          I know its not what u wanted so just considered it a note :)

          A 1 Reply Last reply 13 Aug 2016, 18:25
          1
          • M mrjj
            13 Aug 2016, 17:37

            @AliReza-Beytari
            but dont python comes with its own shell? (or command prompt)

            Anyway, you can hax the prompt to support colors
            https://web.liferay.com/web/igor.spasic/blog/-/blogs/enable-ansi-colors-in-windows-command-prompt

            not tried in win 10. only win 7.
            I know its not what u wanted so just considered it a note :)

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            AliReza Beytari
            wrote on 13 Aug 2016, 18:25 last edited by
            #7

            @mrjj I couldn't use that!! :(

            M 1 Reply Last reply 13 Aug 2016, 18:27
            1
            • A AliReza Beytari
              13 Aug 2016, 18:25

              @mrjj I couldn't use that!! :(

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              mrjj
              Lifetime Qt Champion
              wrote on 13 Aug 2016, 18:27 last edited by
              #8

              @AliReza-Beytari
              didnt work on win 10 or what you mean?

              A 1 Reply Last reply 13 Aug 2016, 18:28
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              • M mrjj
                13 Aug 2016, 18:27

                @AliReza-Beytari
                didnt work on win 10 or what you mean?

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                AliReza Beytari
                wrote on 13 Aug 2016, 18:28 last edited by
                #9

                @mrjj I just need a very simple code for printing a colored text!! :)

                M 1 Reply Last reply 13 Aug 2016, 18:37
                0
                • A AliReza Beytari
                  13 Aug 2016, 18:28

                  @mrjj I just need a very simple code for printing a colored text!! :)

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                  mrjj
                  Lifetime Qt Champion
                  wrote on 13 Aug 2016, 18:37 last edited by mrjj
                  #10

                  @AliReza-Beytari
                  yes but its not really supported in windows anymore.
                  In command prompt i mean.
                  in ooooold times ansi.sys gave us colors. :)

                  M 1 Reply Last reply 13 Aug 2016, 18:49
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                  • M mrjj
                    13 Aug 2016, 18:37

                    @AliReza-Beytari
                    yes but its not really supported in windows anymore.
                    In command prompt i mean.
                    in ooooold times ansi.sys gave us colors. :)

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                    mrjj
                    Lifetime Qt Champion
                    wrote on 13 Aug 2016, 18:49 last edited by mrjj
                    #11

                    update
                    using native api, there are colors to some degree :)
                    https://msdn.microsoft.com/en-us/library/windows/desktop/ms682073(v=vs.85).aspx
                    check out
                    https://github.com/mattn/ansicolor-w32.c

                    but your app is then tied to windows :(

                    1 Reply Last reply
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                    • A Offline
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                      AlgorithMan
                      wrote on 9 Oct 2018, 14:07 last edited by AlgorithMan 10 Sept 2018, 14:10
                      #12

                      Yes, the code you have there uses VT100 Escape Codes (note that \033 is the octal representation of character 27=escape. You could also use the hexadecimal \x1b instead), see http://en.wikipedia.org/wiki/ANSI_escape_code

                      These require a terminal emulator that supports VT100, which almost all linux terminal emulators do. Windows Command Prompt doesn't support them by default, but at the bottom of https://docs.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences there is some code that shows how to turn that on (it's only a few lines of additional code that you only need to run once at the beginning - I would put it into an #ifdef __WIN32 #endif for platform independence.)
                      I haven't actually tried that though and I'm not sure on which versions of windows it works.

                      Regarding python: python doesn't natively support VT100 either, but the colorama package https://pypi.org/project/colorama/ enables them (to my knowledge, it replaces the print or write methods with something that extracts the escape codes and does the manipulations via calls to kernel32.dll methods).

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