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Author Topic: Prevent computer sleep  (Read 5486 times)

mdalacu

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Prevent computer sleep
« on: November 07, 2018, 02:23:31 pm »
Hi. I need help to modify my application to prevent computer entering sleep state while the app is doing something....
On windows i achieve this like so:
Code: Pascal  [Select][+][-]
  1. {$IFDEF Windows}
  2.    SetThreadExecutionState(ES_CONTINUOUS OR ES_SYSTEM_REQUIRED OR ES_AWAYMODE_REQUIRED);
  3. {$ENDIF}

Any ideea on how can i do this on Linux..manly Ubuntu 18.04 x64.
Thank you very much.

mdalacu

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Re: Prevent computer sleep
« Reply #1 on: November 12, 2018, 07:23:25 am »
No one? Any hint is appreciated... :)

Leledumbo

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Re: Prevent computer sleep
« Reply #2 on: November 12, 2018, 01:10:57 pm »
What I can find is this, where FPC should be capable of doing both, however I prefer the dbus way as X may not be available in the future when wayland finally takes over. See: http://wiki.freepascal.org/FPC_and_DBus

Thaddy

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Re: Prevent computer sleep
« Reply #3 on: November 12, 2018, 01:30:57 pm »
Yes, I agree, but the wiki entry is not finished and a bit marginal. There is far better code however:
If you are new to dbus programming maybe these articles by Michael can Canneyt can help:
https://www.freepascal.org/~michael/articles/#dbus1
https://www.freepascal.org/~michael/articles/#dbus2
sources: https://www.freepascal.org/~michael/articles/dbus2/dbus-code.zip
« Last Edit: November 12, 2018, 01:32:47 pm by Thaddy »
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mdalacu

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Re: Prevent computer sleep
« Reply #4 on: November 14, 2018, 09:46:27 am »
Thank you both! :-)
@Thaddy The sorces posted for dbus does not compile anymore so i will try using dbus-sent in a Tprocess
Thank you again.

Thaddy

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Re: Prevent computer sleep
« Reply #5 on: November 14, 2018, 10:00:32 am »
Yes i Saw that. A quick Fix is to make the property a VAR
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mdalacu

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Re: Prevent computer sleep
« Reply #6 on: November 14, 2018, 01:04:56 pm »
@Thaddy Please, can you be more specific?
What did you changed in order to compile the 2 bundled examples? Thank you.

mdalacu

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Re: Prevent computer sleep
« Reply #7 on: November 16, 2018, 10:12:11 am »
Me again...i am unable to sort this out... :/ It is beyond my skills.
Could someone provide an quick example how to call a dbus method using dbus unit from fpc? "dbuscomp" i am unable to make it to compile.
Thank you very much.

Thaddy

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Re: Prevent computer sleep
« Reply #8 on: November 16, 2018, 11:52:03 am »
check if  the dbus shared libraries have the extension .so and not so.1 or something. If so, create a symlink or copy.
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mdalacu

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Re: Prevent computer sleep
« Reply #9 on: November 16, 2018, 02:51:04 pm »
check if  the dbus shared libraries have the extension .so and not so.1 or something. If so, create a symlink or copy.
This is not the problem.
I need an working examle using dbus unit as the wiki is incomplete or an updated dbuscomp unit which i could compile. The posted one has methods which are no longer available in dbus.
Thanks again.

Thaddy

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Re: Prevent computer sleep
« Reply #10 on: November 16, 2018, 03:12:17 pm »
OK I will come up with something new (but these calls are still available afaik AND tested!) Not based on the wiki but based on the article.
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mdalacu

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Re: Prevent computer sleep
« Reply #11 on: November 17, 2018, 12:43:23 pm »
Thank you @Thaddy.  :D I am waiting eagerly for your example.

mdalacu

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Re: Prevent computer sleep
« Reply #12 on: November 22, 2018, 09:46:38 am »
Please, just an working example of using dbus...it's all i need... i hope... :-)

Thaddy

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Re: Prevent computer sleep
« Reply #13 on: November 22, 2018, 11:30:12 am »
I do not always have time to do it right away.
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mdalacu

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Re: Prevent computer sleep
« Reply #14 on: November 23, 2018, 07:49:37 am »
I do not always have time to do it right away.
I am sorry for insisting to much.

 

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