Re: RMagick's #display (focus issues) - off-topic?

On Jul 10, 2013, at 7:27 AM, Hal Fulton <[e-mail]> wrote:

> I was playing with a little software idea last night and ran into =
difficulty.
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> Actually, I could start an email with that sentence almost every day.  =
;)
> '

I firmly believe one should strive daily for this sort of perfection.

> I wanted a little image-processing tool and felt that Photoshop was
> massive overkill (also, I don't have it anymore, and it's expensive).
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> So I thought: It might be fun to write a little semi-interactive =
program
> with an old-fashioned interface.
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> This is Mac OS X, fwiw.
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> The basic logic flow was:
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>    Read an image file
>    Loop:
>       Read a command via gets
>       Parse and execute the command
>       Display the resulting image
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> Which works "mostly ok" -- but when I do img.display and it
> opens a new window... the new window (naturally?) has the
> focus -- I would say "steals" the focus from iTerm.
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> Thinking about this, I suppose it relates more to the window
> manager (and maybe ImageMagick and the OS) than to Ruby...
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This is indeed a property of OS/X (or any other similar display manager, =
such as Windows, X, etc)

> Having said that, I wonder if there is a solution to this, other than
> constantly re-clicking in my original terminal window?

I haven't written any native applications in ruby, but I imagine that =
after you call img.display from your program, you can steal back the =
focus in your REPL just before you read a command, but again, I'm not =
sure how you'd do this specifically. You'd probably need to send some =
message to raise the iTerm window. I know you could do something in =
AppleScript to do this, but again, not sure what, specifically.

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> Thanks,
> Hal
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