1、从www.fltk.org上下载源码...我下载的源码是fltk-1.1.10-source.zip

2、解压到任意盘，我是解压到C盘下面滴...

3、切换到visualc文件夹...

4、用Visual C++ 6.0 打开fltk.dsw

5、按F7编译，Build the Project

6、在lib文件夹内生成了如下文件：

                     fltkd.lib
                     fltkformsd.lib
                     fltkgld.lib
                     fltkimagesd.lib
                     fltkjpegd.lib
                     fltkpngd.lib
                     fltkzd.lib

搞定.....