WINDEV Concepts

Part 7: Appendices 185 WD Signature Allows you to easily include a ready-to-use ‘Signature’ control in your WINDEV applications. This control is very useful for the applications intended to operate on touch-screen devices, TabletPC in Windows XP, interactive devices, ... WD Simplexe Used to perform calculations from the Simplexe algorithm. WD Sockets Used to establish a communication between two applications by using sockets. WD SystemInfo Proposes three categories of functions used to group information about the current computer, the user and the network to which the current computer is connected. WD Touch Screen Used for interfacing a tactile screen that can replace the standard keyboard. This keyboard allows you to use a WINDEV application on a computer not equipped with a keyboard. WD Trace Socket Allows you to trace a communication via socket, on a given address, on a given port. This allows you to understand the principle of dialog via socket between two applications. In the applications that dialog via socket, you will be able to see all of the exchanges performed on the socket even if no trace option was specified by the developers. This example also allows you to better understand the operating mode of network protocols based on sockets: POP3, SMTP, FTP, HTTP, etc.