Looking for a very specific device that doesnt seem to exist

[fr33man]

On most projectors there's a feature that lets you "freeze" the currently displayed image so that the computer connected to it can do something else while still keeping that image up. I was wondering if there was a way to create some HDMI pass through that lets you do the same. I understand that this feature does exist on some hi-fi equipment, but I don't wish to spend $3k for one simple function.

Am I just not finding it or does something like this not exist?

All I want is some kind of "freeze" feature that works through HDMI.

 

 

I understand Macs can already do something quite similar to this, and with Windows you can just extend your desktop to the second display, however I do not want to use the extend for this use. If there is some kind of way for software to do this, please do tell. The computer I'm aiming to do this is on is running Windows 7 and it needs to either run through software or HDMI.

[dalekphalm]

Depending on how exactly you want/need this to work, you could simply take a screen shot...

 

Or, you could build a RaspberryPi w/ a capture device and write a script or a program to essentially do the same thing for you. You could even potentially write the code so that a physical button press or switch activates the screenshot-then-output-to-display script.

 

Not exactly elegant though.

[fr33man]

1 minute ago, dalekphalm said:

Depending on how exactly you want/need this to work, you could simply take a screen shot...

 

Or, you could build a RaspberryPi w/ a capture device and write a script or a program to essentially do the same thing for you. You could even potentially write the code so that a physical button press or switch activates the screenshot-then-output-to-display script.

 

Not exactly elegant though.

Elegance doesn't matter. A RaspberryPi would definetly be interesting to work with but I have no prior experience. Would you happen to know if most of what I want to do would already be online?

[Enderman]

https://superuser.com/questions/333178/how-do-we-freeze-the-display-on-an-external-display ?

[fr33man]

Just now, Enderman said:

https://superuser.com/questions/333178/how-do-we-freeze-the-display-on-an-external-display ?

All they talk about is using extended mode. I don't want to use extended mode.

[RadiatingLight]

25 minutes ago, dalekphalm said:

Depending on how exactly you want/need this to work, you could simply take a screen shot...

 

Or, you could build a RaspberryPi w/ a capture device and write a script or a program to essentially do the same thing for you. You could even potentially write the code so that a physical button press or switch activates the screenshot-then-output-to-display script.

 

Not exactly elegant though.

But how would you have both a display input and a display output on the Pi?

Don't they have just one HDMI port?

[zMeul]

3 minutes ago, RadiatingLight said:

But how would you have both a display input and a display output on the Pi?

Don't they have just one HDMI port?

you could add a HDMI switch and switch between the main input to the Pi, then switch back

https://www.amazon.com/Generic-HDMI-1-Out-Switch-Cable/dp/B0018DQYQ2?th=1

[RadiatingLight]

8 minutes ago, zMeul said:

you could add a HDMI switch and switch between the main input to the Pi, then switch back

https://www.amazon.com/Generic-HDMI-1-Out-Switch-Cable/dp/B0018DQYQ2?th=1

but that's now two buttons to push...

welp.

[fr33man]

2 minutes ago, RadiatingLight said:

but that's now two buttons to push...

welp.

It wouldn't even work properly...

This problem is oddly difficult.

[RadiatingLight]

Just now, fr33man said:

It wouldn't even work properly...

This problem is oddly difficult.

Hm..

Can the pi even input video through HDMI?

[dalekphalm]

9 hours ago, RadiatingLight said:

But how would you have both a display input and a display output on the Pi?

Don't they have just one HDMI port?

As I said in my post, you'd need to use the Pi with a capture device. The Pi cannot natively capture/input HDMI.