用VB实现的坐标转换，功能简单了点，但很实用，WGS-84,B-54之间的相互转换。-VB coordinate conversion, a simple functional, but very useful, WGS-84, B-54 between the conversion.

这是个基于VB版的鼠标钩子程序，程序适时跟踪计算鼠标坐标、移动距离、像素转换等，还可以设置窗口永远在最上层，不遮挡！-This is based on the VB version of the mouse hook procedure, timely follow-up procedures for calculating the coordinates of the mouse, move distance, pixel conversion, you can set the window