The ObjectPAL was (like Hypercard) associated with the visual objects - also revealed by right click. The mouse right-click was used for access to Forms and Reports properties, inspired by the Xerox Alto and Smalltalk, in a way now almost universal to Windows programs. The Forms and Reports designers used device independent scaling including ability to work in zoomed mode for detailed layout. An object-based language based on ideas from Hypercard was used in place of keystroke recording.
The ObjectPAL changes were controversial but forced since PAL was based on keystroke recording actions that had no equivalent in Windows. Although key features of the DOS product, the QBE and the database engine, were ports keeping the DOS code, there was a major break in compatibility from PAL to ObjectPAL and in the shift to a GUI design metaphor for Forms and Reports. Paradox for Windows was a distinctly different product from Paradox for DOS, and was produced by a different team of programmers.
Corel paradox how to manuals#
In September 1987, Borland purchased Ansa Software, including their Paradox/DOS 2.0 software.
Corel paradox how to software#
Paradox for DOS was a relational database management system originally written by Richard Schwartz and Robert Shostak, and released by their company Ansa Software in 1985.