Pass args with values to Console App

If i pass this argument:

-helloworld

I can get it easily.

But how do I do if i want to get this line as 1 argument or something:

-writethis "Hello Guys!"

I have only suceeded with retrieving it as 2 separate args :( (writethis, "hello Guys")

Loop through the arguments and find the position of "-writethis". The position for the arg after that would be args(writethis_pos + 1).

of course :D thx