[Gambas-user] ncurses fail. says Screen incorrectly overridden

Tobias Boege taboege at gmail.com
Wed Dec 9 17:39:23 CET 2020

On Wed, 09 Dec 2020, Bruce Steers wrote:
> If adding gb.ncurses component to any app when i try to run it says..
> Screen height is incorrectly overridden in class Screen.

The Screen class in gb.ncurses is static, as there is only one terminal
that a gb.ncurses program can use[*], and therefore all of its properties
are static as well. The project that you link gb.ncurses to seems to
have its own Screen class with a conflicting definition of the Height

My guess: you're trying to mix a gb.gui-style component (which brings
a non-static Screen class) and gb.ncurses (with a static Screen class).
If yes, then do you really need the two user interfaces in a single

Without namespaces in Gambas, conflicts like these are bound to occur.
>From an ncurses point of view, "Screen" was the right name to choose
for that class, but it has a very different meaning than "Screen" in
the GUI components.

The only thing you can do is not to mix the two classes of components.


[*] Not true for ncurses, but for gb.ncurses because it is not fully
developed to ncurses's capabilities.

"There's an old saying: Don't change anything... ever!" -- Mr. Monk

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