What is TTWeb?
TTWeb is Turbosoft’s web to host terminal emulation software, designed to run terminal emulation sessions directly within a browser or, to use that browser as a delivery mechanism to deploy and maintain a stand alone terminal emulation application for an end user. We call the latter ‘stand-alone’ mode and the web page usage 'embedded' mode. TTWeb utilizes Microsoft’s ActiveX technology to embed terminal emulation sessions within the Internet Explorer browser - because ActiveX is a Microsoft technology for all practical purposes it is limited to the Windows platform and Internet Explorer browser. For more information on ActiveX, take a look at our article on ActiveX and Terminal Emulation.
Let’s look at the example included with the TTWeb install.
TTWeb sample page, showing TTWeb embedded in browser.
Using the emkeys method, clickable images representative of keys are included to allow the end user to send keystrokes to the host such as the F13 and F14 keys on a DEC keyboard of which no direct equivalents are available on the PC keyboard (although TTWeb does, of course, allow them to be mapped to PC keys). Strings and TTWeb macros can also be sent to the host using this method allowing a user to click on web page element and trigger a complex action on the host system (check the post on Macros and Terminal Emulation or refer to the TTWin 4 User Manual chapter of the same name for more detail on macro capabilities). There is no reason why a button could not be included which completed the entire login process for the user, asking for or sending a stored password and username to the host system.
Print buttons using the printScreen method to enable the printing of a selected area of the terminal display or the full terminal screen to be printed. Printing dialogs and the selection of a local printer are handled by the browser.
Other controls allow the switching of terminal types such as vt100 and 3270 emulation, the selection of communications protocols like SSH and telnet and the entering of a host address along with basic connect and disconnect buttons. The small green toggle button located at the top right of the display panel enlarges or shrinks the terminal display area.