put_bookmark

mark position
     ea      - address to mark
     lnnum   - number of generated line for the 'ea'
     x       - x coordinate of cursor
     y       - y coordinate of cursor
     slot    - slot number: 0..1023
               if the specified value is not within the range,
               IDA will ask the user to select slot.
     comment - description of the mark.
               Should be not empty.
returns: none

void put_bookmark(long ea, long lnnum, long x, long y, long slot, string comment);