Qt Console Application - Print colored text

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

AliReza Beytari

@Wieland Windows 10.0.10586

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@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.

AliReza Beytari

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

mrjj

@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 :)

AliReza Beytari

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

mrjj

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

AliReza Beytari

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

mrjj

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

mrjj

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 :(

AlgorithMan

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).