Graphic Environment on Clipper Language

Graphic environment implemented on Clipper language for old DOS Operational System.

History Behind

This code is the core that I've used on my 90's projects on MS-DOS on Clipper Language. With this core I was able not only to have a graphical interface on MS-DOS but also resources that were only available on Windows (that was not so wide used as MS-DOS).

Unfortunately I could only "revive" the core of the system from the backups, there is still missing the window editor that was part of that (like an IDE for drag-and-drop components), and some commercial software made over this platform. With some luck I will be able to find these files and share them one day.

Standard DOS apps looked like this:

  

Using this graphical environment it looks like this:

  

Compiling and Running

To run this app properly it is needed to have a MS-DOS compatible environment. Using FreeDOS does the job very well.

• Copy the content of the project to a folder;
• Inside the folder run C.BAT, it will compile and link everything;

How does it work?

The graphical environment works by loading external window files and mounting on the screen. Every object loaded from the window file enters into the core flow.

Objects in the flow are:

• Input (text, number, formated floats, formated data)
• Checkbox
• Selectbox
• Button
• Data Browser

TODO

• Finish some variable translations (originally it is in portuguese)
• Prepare some documentation about the window files;