vc++编写的双缓冲画图、无闪烁的usb虚拟示波器。(Vc++ prepared double buffered drawing, flicker free USB virtual oscilloscope)

说明： 软键盘，主要是体现VC编程的一些技巧。包括图形按钮，透明度设置，消息响应，虚拟键设置((Soft keyboard, mainly reflecting VC programming skills. Including graphical buttons, transparency settings, message response, the virtual key settings))

虚拟桌面软件,能自由切换4个虚拟桌面, VC++编写()