This paper provides a sort of system software design of LED Picture-Character Display,introduces the program s key points of upper computer and nether device,and emphatically describes how to convert Chinese character into display dot-matrix from Chinese character Font Library and how to convert picture to display dot-matrix with the method of snap-screen.

Technological Application of Screen Capture in Drawing Coordinate Sketch-Map for The Site of Weather Modification;

Faced with a laser cutting machine′ s data output problems caused by foreign technological embargo on China,it presented a bidirectional data transfer program based on the screen capture and numerical recognition technology and its concrete method.

This article mainly analyzes the technique principle of a function overall screen capture software which is based on Delphi,introduces the strong function and operation method of this software,and gives a concrete program code in the meantime.

Research on medical screengraphics capture oflong distance in real-time;