How to insert a newline in a text area via coding

[Zui]

i have this problem, in my app i have a text area which say:

current option:

Option A

using touchGFX i set an interaction when a button is pressed to chage that text area, and i need it to become:

current option:

Option B

when i put those tho line in the text field in the Interaction options on touchGFX like showed

what TouchGFX generates on ScreenViewBase.cpp is this:

and OFC won't compile.

i tryed some escape sequence, but no luck so far...

can someone enlight me.

Thanks in advance

Stefano

[After Forever]

What escape sequences did you try? If not \n or \r\n then try them too.

[Zui]

tryed \n, \n\r ,\\n, \0x0A, and whith / instead of \

[After Forever]

So what exactly happens with \n for example? I'd think that the generated comment breaking with syntax error should be fixed.

[Zui]

i fix temporaly with a work-around by creating a resource with the phrases i need, in this case works fine because i need few different fixed phrases, but problem persists if i need to change text with something user type, or still something not hard coded

[Zui]

well, with \n there are no errors, but che textArea shown is

current option:\n option B

instead of

current option:

option B

[Martin KJELDSEN · Accepted solution]

Hi @Zui​,

Have you considered texts with wildcards? Using wildcard unicode buffers you can replace the text of a textarea runtime.

Step 3 of this tutorial explains how to do that using the designer:

https://touchgfx.zendesk.com/hc/en-us/articles/205587571-Step-3-Adding-Text

[AMege]

That tutorial article is nice and all, but it doesn't show how to add newlines to a text area from code.

Does snprintf support printing newlines to a wild card buffer? I think not (I've tried)