[Coco] Breaking out of Overlay Windows in Basic09 Error Handling.

[L. Curtis Boyle]

I think just a simple ON ERROR GOTO would handle that.

L. Curtis Boyle
curtisboyle at sasktel.net



> On Jun 22, 2020, at 10:29 AM, coco at jechar.ca wrote:
> 
> 
> Sometimes in my programs and others as well I end up dumped back into the
> shell in an overlay window. I have tended to use the WTYPE program to turn
> it back into a full screen window however this resets the palette and
> puts one back in a FULL screen window even if your original device window
> was just part of the screen.
> 
> So I wrote a program that would simply break out of a overlay window.
> 
> PROCEDURE owc
> 
> (* (c)CC 2020 - GPL *)
> (* Close Overlay Window if any. *)
> 
> RUN GFX2("OWEND")
> 
> END
> 
> I would like to improve on it.
> Ideally it would repeat until one is back in the parent device window
> while preserving the color palette. I think just puting it in a loop would
> do that but when it exits how can I suppress the
> Error 195 - Illegal window definition
> and do a quiet exit.