Tried this today with an Android app that does not allow screenshots. On Windows the screen for that app is just all black. Guess they _really_
don't want you taking screenshots!

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sms <scharf.steven@geemail.com> wrote:

Tried this today with an Android app that does not allow screenshots. On Windows the screen for that app is just all black. Guess they _really_
don't want you taking screenshots!

With USB and ADB, Windows sees the phone as a mass storage device, so
you see the phone in File Explorer. To remotely view the phone's screen
on your Windows host, you need more software, like AirDroid, LetsView,
AirCast, MS Remote Desktop, AnyDesk, TeamViewer, or some other screen
remoting setup. What are YOU using?

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On 8/17/2023 7:33 PM, VanguardLH wrote:

sms <scharf.steven@geemail.com> wrote:

Tried this today with an Android app that does not allow screenshots. On
Windows the screen for that app is just all black. Guess they _really_
don't want you taking screenshots!

With USB and ADB, Windows sees the phone as a mass storage device, so
you see the phone in File Explorer. To remotely view the phone's screen
on your Windows host, you need more software, like AirDroid, LetsView, AirCast, MS Remote Desktop, AnyDesk, TeamViewer, or some other screen remoting setup. What are YOU using?

LetsView didn't work, nor did Airdroid, both respect the Android app's disallowing of screen shots, just a black screen shows up. I suspect
that all the others would have the same result.

Fortunately, iOS lacks the capability of blocking screenshots so I can
use my iPhone to capture the screenshot then send it to the Android device.

--
“If you are not an expert on a subject, then your opinions about it
really do matter less than the opinions of experts. It's not
indoctrination nor elitism. It's just that you don't know as much as
they do about the subject.”—Tin Foil Awards

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In article <ubo5s9$arqv$1@dont-email.me>, sms
<scharf.steven@geemail.com> wrote:

Fortunately, iOS lacks the capability of blocking screenshots

false, and further evidence you know very little about ios.

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sms <scharf.steven@geemail.com> wrote:

VanguardLH wrote:

sms <scharf.steven@geemail.com> wrote:

Tried this today with an Android app that does not allow
screenshots. On Windows the screen for that app is just all black.
Guess they _really_ don't want you taking screenshots!

With USB and ADB, Windows sees the phone as a mass storage device, so
you see the phone in File Explorer. To remotely view the phone's
screen on your Windows host, you need more software, like AirDroid,
LetsView, AirCast, MS Remote Desktop, AnyDesk, TeamViewer, or some
other screen remoting setup. What are YOU using?

LetsView didn't work, nor did Airdroid, both respect the Android app's disallowing of screen shots, just a black screen shows up. I suspect
that all the others would have the same result.

Fortunately, iOS lacks the capability of blocking screenshots so I can
use my iPhone to capture the screenshot then send it to the Android device.

New one on me. Didn't realize an app could restrict capturing its
window. I hunted around, and found:

https://developer.android.com/reference/android/view/WindowManager.LayoutParams.html#FLAG_SECURE

Mentions how to code an app to prevent capturing its window, like using:

getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);

https://www.makeuseof.com/how-to-take-screenshots-on-android-when-the-app-doesnt-allow-it/
Annoying as it is, developers don't restrict screenshots for no
reason. Be it privacy or security, there's always a grain of reason
for doing this.

Most banking and payment apps block screenshots for security reasons.
Chrome blocks screenshots in its Incognito tabs and windows for
privacy reasons. Streaming services block screenshots to prevent
piracy. Another example would be Telegram's self-destructing photos,
where you can't screenshot them."

I've not used "Hey, Google" for a long time. I had it disabled. My
phone is sitting on a desk, the TV is on, and something said on the TV
triggers the Google Assistant, so I have to exit it. I just reenabled
voice assist in Google Assistant, and it does work to have an app opened
(to see its window) and say "Hey, Google, take a screenshot".

The 2nd method the article mentions is to use scrcpy (https://github.com/Genymobile/scrcpy) which, according to the article,
does not honor screenshot restrictions in apps.

You didn't mention the app to lookup and check if it deliberately blocks
screen captures.

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VanguardLH <V@nguard.lh> wrote:
[...]

https://www.makeuseof.com/how-to-take-screenshots-on-android-when-the-app-doesnt-allow-it/

[...]

The 2nd method the article mentions is to use scrcpy (https://github.com/Genymobile/scrcpy) which, according to the article,
does not honor screenshot restrictions in apps.

sms already used scrcpy:

Subject: Re: Android is too smart to Allow Screenshots , via Windows, using scrpy and ADB

[...]

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On 8/18/2023 10:42 AM, VanguardLH wrote:

New one on me. Didn't realize an app could restrict capturing its
window. I hunted around, and found:

Two apps that I use have this restriction, Costco and Kaiser-Permenante.

Both can do screenshots on iOS.

<snip>

Annoying as it is, developers don't restrict screenshots for no
reason. Be it privacy or security, there's always a grain of reason
for doing this.

Yes, but if it were that important they would not even release iOS apps
since iOS lacks the privacy and security protections that are built into Android.

The 2nd method the article mentions is to use scrcpy (https://github.com/Genymobile/scrcpy) which, according to the article,
does not honor screenshot restrictions in apps.

scrcpy also does not work.

You didn't mention the app to lookup and check if it deliberately blocks screen captures.

<https://play.google.com/store/apps/details?id=com.costco.app.android> <https://play.google.com/store/search?q=kp.org>

I think that you'd have to be able to log in before you see the
restrictions.

--
“If you are not an expert on a subject, then your opinions about it
really do matter less than the opinions of experts. It's not
indoctrination nor elitism. It's just that you don't know as much as
they do about the subject.”—Tin Foil Awards

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Frank Slootweg <this@ddress.is.invalid> wrote:

VanguardLH <V@nguard.lh> wrote:

https://www.makeuseof.com/how-to-take-screenshots-on-android-when-the-app-doesnt-allow-it/

The 2nd method the article mentions is to use scrcpy
(https://github.com/Genymobile/scrcpy) which, according to the article,
does not honor screenshot restrictions in apps.

sms already used scrcpy:

He didn't mention scrcpy in this thread. He mentioned it elsewhere?

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VanguardLH <V@nguard.lh> wrote:

Frank Slootweg <this@ddress.is.invalid> wrote:

VanguardLH <V@nguard.lh> wrote:

https://www.makeuseof.com/how-to-take-screenshots-on-android-when-the-app-doesnt-allow-it/

The 2nd method the article mentions is to use scrcpy
(https://github.com/Genymobile/scrcpy) which, according to the article,
does not honor screenshot restrictions in apps.

sms already used scrcpy:

He didn't mention scrcpy in this thread. He mentioned it elsewhere?

Yes, he did. He mentioned it in the Subject: header, which I quoted,
but you snipped (and apparently didn't read). It's kind of mind boggling
that you managed to do that, even despite the preceding colon
introducing the quote.

I fully understand that you didn't see the scrcpy part in the subject
as displayed by your newsreader. Dialog probably didn't display the full
header (my newsreader didn't either). But missing and snipping my quote,
... !?

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Frank Slootweg <this@ddress.is.invalid> wrote:

VanguardLH <V@nguard.lh> wrote:

Frank Slootweg <this@ddress.is.invalid> wrote:

VanguardLH <V@nguard.lh> wrote:

https://www.makeuseof.com/how-to-take-screenshots-on-android-when-the-app-doesnt-allow-it/

The 2nd method the article mentions is to use scrcpy
(https://github.com/Genymobile/scrcpy) which, according to the article, >>>> does not honor screenshot restrictions in apps.

sms already used scrcpy:

He didn't mention scrcpy in this thread. He mentioned it elsewhere?

Yes, he did. He mentioned it in the Subject: header, which I quoted,
but you snipped (and apparently didn't read). It's kind of mind boggling
that you managed to do that, even despite the preceding colon
introducing the quote.

I fully understand that you didn't see the scrcpy part in the subject
as displayed by your newsreader. Dialog probably didn't display the full header (my newsreader didn't either). But missing and snipping my quote,
... !?

Ah, long subject got cut off from view. Thanks for the update.

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On 2023-08-19, sms <scharf.steven@geemail.com> wrote:

The 2nd method the article mentions is to use scrcpy
(https://github.com/Genymobile/scrcpy) which, according to the article,
does not honor screenshot restrictions in apps.

scrcpy also does not work.

That statement, while partly true, is too much of a blanket statement.

As I described elsewhere in this thread, the Genymotion emulator company donated scrcpy worked 100% in my tests to screenshot protected Android 10
and Android 11 activities (a fancy word for a display in any Android app).

However, I was surprised when I moved to Android 12, and changed nothing
else, that only about half of the protected screenshots are visible on
Windows when I use Irfanview to screenshot the Android image on the PC.

My guess is that there is a new "something" that didn't exist in Android 11 that apps can add in Android 12 to better protect protected activities.

My guess is that some apps have included that Android 12 "something" while others haven't. I haven't delved deeper into the problem other than that.

Since I've been using screencopy (scrpy) and soundcopy (sndcpy) for years (because my eyes are bad so a ten-inch phone on the screen is easily seen), you're welcome to ask me any questions about any app that I may already
have installed on Android (although I don't have a Costco or Kaiser app).

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On 2023-08-19, VanguardLH <V@nguard.LH> wrote:

Ah, long subject got cut off from view. Thanks for the update.

Frank Slootweg <this@ddress.is.invalid> wrote

sms already used scrcpy:

In my many experiments, the FOSS scrcpy screen-copy program worked 100% of
the time on Android 11 but roughly only about half the time on Android 12
to screenshot protected Android activities (ie protected screen displays).

<https://scrcpy.org/>
<https://github.com/Genymobile/scrcpy>
<https://sourceforge.net/projects/scrcpy.mirror/>

My guess is that there's a new "something" in Android 12 which screen copy hasn't yet had a chance to add code for overriding protected screenshots.

Note that there is also a soundcopy (sndcpy) which, along with scrcpy, essentially puts your entire Android phone onto your PC for all purposes.
<https://github.com/rom1v/sndcpy>
<https://github.com/rom1v/sndcpy/releases>
<https://www.downloadsource.net/how-to-set-up-sndcpy-to-forward-audio-from-android-to-pc/n/19526/>

The mouse, keyboard, screen and clipboard all work as you'd expect them to.

I've used them both for years so if you have questions, just ask for help.

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Ankora <ankora1234567890@gmail.com> wrote:

As I described elsewhere in this thread, the Genymotion emulator
company donated scrcpy worked 100% in my tests to screenshot
protected Android 10 and Android 11 activities (a fancy word for a
display in any Android app).

However, I was surprised when I moved to Android 12, and changed
nothing else, that only about half of the protected screenshots are
visible on Windows when I use Irfanview to screenshot the Android
image on the PC.

https://www.androidpolice.com/2021/06/21/screen-recorder-scrcpy-gains-android-12-support-but-google-severely-limited-its-capabilities/

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VanguardLH <V@nguard.LH> wrote:

Ankora <ankora1234567890@gmail.com> wrote:

As I described elsewhere in this thread, the Genymotion emulator
company donated scrcpy worked 100% in my tests to screenshot
protected Android 10 and Android 11 activities (a fancy word for a
display in any Android app).

However, I was surprised when I moved to Android 12, and changed
nothing else, that only about half of the protected screenshots are
visible on Windows when I use Irfanview to screenshot the Android
image on the PC.

https://www.androidpolice.com/2021/06/21/screen-recorder-scrcpy-gains-android-12-support-but-google-severely-limited-its-capabilities/

Um, to clarify, sms didn't yet mention here what is his version of
Android, so Ankora and I are guessing he could be on Android 12, and why scrcpy, and other remoting software, does not work for him.

Google giveth and taketh.

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On 2023-08-19, VanguardLH <V@nguard.LH> wrote:

https://www.androidpolice.com/2021/06/21/screen-recorder-scrcpy-gains-android-12-support-but-google-severely-limited-its-capabilities/

Um, to clarify, sms didn't yet mention here what is his version of
Android, so Ankora and I are guessing he could be on Android 12, and why scrcpy, and other remoting software, does not work for him.

Google giveth and taketh.

Thank you for searching for what's different in Android 12 versus Android
10 and 11 for scrcpy to snap screenshots of protected Android activities.

Your article suggests the scrcpy team may be working on a workaround.
Your article date is Jun 21, 2021 & their version of scrcpy is 1.18.

I just checked mine, which is 1.24 but I haven't tested recently if it
snaps protected content or not. Probably not as this is a known issue. https://github.com/Genymobile/scrcpy/issues/3117

This is my scrcpy version.
scrcpy --version
scrcpy 1.24 <https://github.com/Genymobile/scrcpy>
Dependencies (compiled / linked):
- SDL: 2.0.22 / 2.0.22
- libavcodec: 59.18.100 / 59.18.100
- libavformat: 59.16.100 / 59.16.100
- libavutil: 57.17.100 / 57.17.100
- libusb: - / 1.0.26

Here is another article saying the same thing, so it's not that scrcpy
can't snapshot protected activities, but it's that it can't on Android 12. https://androidcommunity.com/scrcpy-supports-android-12-but-google-restricts-its-capabilities-20210622/

BTW, one nice feature of scrcpy is you can drag and drop any APK from your computer storage onto the Android image and it installs that application!

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On 8/19/2023 11:11 AM, VanguardLH wrote:

VanguardLH <V@nguard.LH> wrote:

Ankora <ankora1234567890@gmail.com> wrote:

As I described elsewhere in this thread, the Genymotion emulator
company donated scrcpy worked 100% in my tests to screenshot
protected Android 10 and Android 11 activities (a fancy word for a
display in any Android app).

However, I was surprised when I moved to Android 12, and changed
nothing else, that only about half of the protected screenshots are
visible on Windows when I use Irfanview to screenshot the Android
image on the PC.

https://www.androidpolice.com/2021/06/21/screen-recorder-scrcpy-gains-android-12-support-but-google-severely-limited-its-capabilities/

Um, to clarify, sms didn't yet mention here what is his version of
Android, so Ankora and I are guessing he could be on Android 12, and why scrcpy, and other remoting software, does not work for him.

Google giveth and taketh.

One device is on Android 13, one is on Android 14 Beta. Scrcpy doesn't
allow certain screenshots on either.

I wonder why Apple has not implemented a way for app developers to
disallow screenshots, not that I'm complaining! Apple is usually the
leader in terms of limiting functionality.

I wonder if this is once again a patent issue where Google has patented
this capability. We've seen a lot of such OS limitations, both on
Android and on iOS because of patent issues. The silliest things can be patented and unless someone has the money to challenge the validity of a patent, they can't use a patented feature.

--
“If you are not an expert on a subject, then your opinions about it
really do matter less than the opinions of experts. It's not
indoctrination nor elitism. It's just that you don't know as much as
they do about the subject.”—Tin Foil Awards

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In article <ubtjbc$1f78d$1@dont-email.me>, sms
<scharf.steven@geemail.com> wrote:

I wonder why Apple has not implemented a way for app developers to
disallow screenshots,

apple did implement a way to block screen shots.

you just don't know about it and have no interest in learning.

I wonder if this is once again a patent issue where Google has patented
this capability.

there you go with the bogus patent claim, which is what you do when
you're bullshitting.

We've seen a lot of such OS limitations, both on
Android and on iOS because of patent issues.

no we haven't.

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