PRWAITBARINIT

Low level routine to simplify PRWAITBAR init

   [N,S,COUNT] = PRWAITBARINIT(STRING,N)

Input
STRING	String with text to be written in every waitbar,  e.g. 'Processing %i items: '. This will be parsed  by S = SPRINTF(STRING,N);
N	Total number of items to be processed

Output
N	Resulting N (Input N may be expression)
S	Resulting STRING (see above)
COUNT	Counter initialisation, COUNT = 0

  This routine has to be used in combination with PRWAITBARNEXT, e.g.

    [n,s,count] = prwaitbarinit('Processing %i items:',size(a,1)*size(a,2));
    for i=1:size(a,1)
      for j=1:size(a,2)
        < process a(i,j) %gt
        count = prwaitbarnext(n,s,count);
      end
    end

PRWAITBARINIT and PRWAITBARNEXT are written on top of PRWAITBAR. If it  is possible that loops like the above are not fully processed, it is  necessary to include as a final call PRWAITBAR(0)