HANDLE h_sour,HANDLE h_dest)
{
    LZW_DATA        lzw;
    BUFFER_DATA     in ;
    BUFFER_DATA     out;
    
    BOOL first_run = TRUE;

    lzw_create( &lzw ,h_sour,h_dest );
    buffer_create( &in );
    buffer_create( &out );


    while( load_buffer( h_sour, &in ) )
    {
        if( first_run )
        {// File length should be considered  but here we simply
         // believe file length bigger than 2 bytes.
                lzw.prefix = in.lp_buffer[ in.index++ ];
                lzw.suffix = in.lp_buffer[ in.index++ ];
                first_run = FALSE;
        }
        do_encode(&in , &out, &lzw);
    }
    
output_code(lzw.prefix, &out , &lzw);
output_code(lzw.suffix, &out , &lzw);
out.end_flag = TRUE;
    empty_buffer( &lzw,&out);

    lzw_destory( &lzw );
    buffer_destory( &in );
    buffer_destory( &out );
}

//------------------------------------------------------------------------------

#endif

(5) decode.h  解压函数主函数

#ifndef __DECODE_H__
#define __DECODE_H__
//------------------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
//------------------------------------------------------------------------------
VOID out_code( WORD code ,PBUFFER_DATA buffer,PLZW_DATA lzw,PSTACK_DATA stack)
{
WORD tmp;
if( code < 0x100 )
{
  stack->lp_stack[ stack->index++ ] = code;
}
else
{
   stack->lp_stack[ stack->index++ ] = lzw->lp_suffix[ code ];
   tmp = lzw->lp_prefix[ code ];
   while( tmp > 0x100 )
   {
    stack->lp_stack[ stack->index++ ] = lzw->lp_suffix[ tmp ];
    tmp = lzw->lp_prefix[ tmp ];
   }
   stack->lp_stack[ stack->index++ ] = (BYTE)tmp;

}


while( stack->index )
{
  if( buffer->index == BUFFERSIZE )
  {
   empty_buffer(lzw,buffer);
  }
  buffer->lp_buffer[ buffer->index++ ] = stack->lp_stack[ --stack->index ] ;
}
}
//---