Hi Bart,
> Is there a way to pass in my own defined parameters to such a function?
>
> I would like to be able to do something similar to the following:
>
> \startCenteredText[myownparm="This is a test"]
> \startlines
> My own parm is: \myownparm
> \stoplines
> \stopCenteredText
Not with framedtext but you define your environment with a optional argument.
ConTeXt has the command \definestartstop but it did not help in your case,
something like LaTeXs \newenvironment, I wrote a simple version below.
\unprotect
\def\????ev{@@@@ev}
\def\environmentparameter#1%
{\csname\????ev\currentenvironment#1\endcsname}
\def\defineenvironment
{\dodoubleempty\dodefineenvironment}
\def\dodefineenvironment[#1][#2]%
{\getparameters
[\????ev#1]
[\c!before=,
\c!after=,
#2]%
\setvalue{\e!start#1}{\dodoubleempty\dostartenvironment[#1]}%
\setvalue{\e!stop #1}{\dostopenvironment}}
\def\setupenvironment
{\dodoubleargument\dosetupenvironment}
\def\dosetupenvironment[#1][#2]%
{\getparameters[\????ev#1][#2]}
\def\dostartenvironment[#1][#2]%
{\bgroup
\edef\currentenvironment{#1}%
\ifsecondargument
\setupenvironment[\currentenvironment][#2]%
\fi
\environmentparameter\c!before}
\def\dostopenvironment
{\environmentparameter\c!after
\egroup}
\protect
\defineframedtext
[CenteredTextFrame]
[width=fit,
location=middle]
\defineenvironment
[CenteredText]
[before=\startCenteredTextFrame\startlines,
after=\stoplines\stopCenteredTextFrame]
\starttext
\startCenteredText[text={This is a test}]
My own parm is: \environmentparameter{text}
\stopCenteredText
\stoptext
Wolfgang
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