说明：  VC++ 一个位图操作类——Cdib，此类库可以实现设备无关位图的读入、创建、显示、保存、位图捕捉等功能。类中代码的注释非常丰富，没有接触的，只要对C++熟悉，会使用是没有问题的。
(VC++ class a bitmap operations Cdib, these libraries can be device-independent bitmap read, create, display, save, bitmap capture. Comments class code is very rich, there is no contact, as long as the familiar C++ will be used is not a problem.)