vb+surfer 绘制等值线图，用vb编程的方式调用surfer出图，自动生成等值线-by visual basic and surfer draw picter auto run,ultlize the picture frame,draw some pretty picture,very well this an example,my write sever years ago

VB源码,VB自动截取当前屏幕并将BMP转换为JPG，抓不到图，有兴趣的朋友下载试试。 -VB source code, VB auto-interception current screen and BMP converted to JPG, grasp diagram, friends who are interested to download to try.