Sorry, that I don´t wrote that earlier but i had no time.
Your posts were very helpful.
I´ve solved the problem:

Code:
[...]
start_index = pos;
while ((command_str.chars)[pos]!=' ')
	pos++;
diff = pos - start_index;
str_get_chars(strTemp,command,pos,diff);
number = str_to_int(strTemp);
pos++;
[...]


Code:
void str_get_chars(STRING* str1,STRING* str2,int start_num,int count)
{
str_cpy(str1, str2);
str_clip(str1, start_num-1);
(str1.chars)[count] = 0;
}


@CanadianDavid:
Im good in C/C++ but I think Lite-C is is a lit bit complicated. (probably because I have learned C++ first)
Quote:
Otherwise, there are many C/C++ threads online related to basic string manipulation. In your case, you can search for something like "string to array of ints" in C.

Can I program with C/C++ in with connection the Acknex Engine?

Thanks. Paul