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Annotation of researchv10no/ncurses/screen/_scrollf.c, revision 1.1.1.1

1.1       root        1: /*     @(#) _scrollf.c: 1.1 10/15/83   (1.21   2/11/83)        */
                      2: 
                      3: #include "curses.ext"
                      4: 
                      5: extern int     _outch();
                      6: 
                      7: /*
                      8:  * Scroll the terminal forward n lines, bringing up blank lines from bottom.
                      9:  * This only affects the current scrolling region.
                     10:  */
                     11: _scrollf(n)
                     12: int n;
                     13: {
                     14:        register int i;
                     15: 
                     16:        if( scroll_forward )
                     17:        {
                     18:                _setwind();
                     19:                _pos( SP->des_bot_mgn, 0 );
                     20:                for( i=0; i<n; i++ )
                     21:                {
                     22:                        tputs(scroll_forward, 1, _outch);
                     23:                }
                     24:                SP->ml_above += n;
                     25:                if( SP->ml_above + lines > lines_of_memory )
                     26:                {
                     27:                        SP->ml_above = lines_of_memory - lines;
                     28:                }
                     29:        }
                     30:        else
                     31:        {
                     32:                /* If terminal can't do it, try delete line. */
                     33:                _pos(0, 0);
                     34:                _dellines(n);
                     35:        }
                     36: }

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