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  1. #1
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    how to set specified homescreen wallpaper on maemo 5

    i want to design a app that image viewer, it can be able to set the viewing image to specified homescreen wallpaper, how to do that?
    the platform is maemo 5(N900) and i will use QT to develop it.

  2. #2
    Nokia Developer Moderator
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    Re: how to set specified homescreen wallpaper on maemo 5

    You should save images' uris to the following GConf keys:
    /apps/osso/hildon-desktop/views/N/bg-image
    where N is a number of the desktop from 1 to 4 by default.
    Current active desktop number is saved in this GConf key:
    /apps/osso/hildon-desktop/views/current
    and list of active desktops (as hardcoding 1-4 is not probably a good idea)
    /apps/osso/hildon-desktop/views/active

    Useful link:
    http://linux.die.net/man/1/gconftool-2

  3. #3
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    Re: how to set specified homescreen wallpaper on maemo 5

    Quote Originally Posted by divanov View Post
    You should save images' uris to the following GConf keys:
    /apps/osso/hildon-desktop/views/N/bg-image
    where N is a number of the desktop from 1 to 4 by default.
    Current active desktop number is saved in this GConf key:
    /apps/osso/hildon-desktop/views/current
    and list of active desktops (as hardcoding 1-4 is not probably a good idea)
    /apps/osso/hildon-desktop/views/active

    Useful link:
    http://linux.die.net/man/1/gconftool-2
    i found "hildon-desktop" file path in scratchbox , but i counldn't found the next file folder "views".
    my file path was [sbox-FREMANTLE_X86: /etc/hildon-desktop] >
    does it right??
    thank you for give me a long time help..

  4. #4
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    Re: how to set specified homescreen wallpaper on maemo 5

    GConf keys have nothing to do with filesystem
    Code:
    $run-standalone.sh gconftool-2 -R /apps/osso/hildon-desktop/views
     current = 3
     active = [1,2,3,4]

  5. #5
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    Re: how to set specified homescreen wallpaper on maemo 5

    Quote Originally Posted by divanov View Post
    GConf keys have nothing to do with filesystem
    Code:
    $run-standalone.sh gconftool-2 -R /apps/osso/hildon-desktop/views
     current = 3
     active = [1,2,3,4]
    sorry ,i am a little stupid,
    i want to set a image to background of screen, and how could i coding it??

  6. #6
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    Re: how to set specified homescreen wallpaper on maemo 5

    Quote Originally Posted by fily_love View Post
    sorry ,i am a little stupid,
    i want to set a image to background of screen, and how could i coding it??
    You can use libgconf2-6 to access and alter GConf keys. Here is a documentation:
    http://library.gnome.org/devel/gconf/stable/

  7. #7
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    Re: how to set specified homescreen wallpaper on maemo 5

    Quote Originally Posted by divanov View Post
    You can use libgconf2-6 to access and alter GConf keys. Here is a documentation:
    http://library.gnome.org/devel/gconf/stable/
    hi , everybody, I am a new guy for develop qt on maemo, and I also want to write for this feature. I read for this talk, but still not very clearly for how to coding. Could these superiores can tell me more clarity to set background image ??

    thank you!

  8. #8
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    Re: how to set specified homescreen wallpaper on maemo 5

    Quote Originally Posted by ftball View Post
    hi , everybody, I am a new guy for develop qt on maemo, and I also want to write for this feature. I read for this talk, but still not very clearly for how to coding. Could these superiores can tell me more clarity to set background image ??

    thank you!
    There are some small example applications showing how to access GConf keys
    http://people.gnome.org/~newren/tuto.../html/apd.html
    Last edited by divanov; 2010-03-30 at 09:35.

  9. #9
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    Re: how to set specified homescreen wallpaper on maemo 5

    Quote Originally Posted by divanov View Post
    There are some small example applications showing how to access GConf keys
    http://people.gnome.org/~newren/tuto.../html/apd.html
    thanks !! so difficult!

  10. #10
    Nokia Developer Moderator
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    Re: how to set specified homescreen wallpaper on maemo 5

    Quote Originally Posted by fily_love View Post
    thanks !! so difficult!
    Cannot agree with you
    http://wiki.forum.nokia.com/index.ph...per_in_Maemo_5

  11. #11
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    Re: how to set specified homescreen wallpaper on maemo 5

    [QUOTE=divanov;720547]Cannot agree with you
    http://wiki.forum.nokia.com/index.ph...per_in_Maemo_5[/QUOTE

    divanov, if you are in China ,i will treat you for dinner!!
    so nice man!

  12. #12
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    Re: how to set specified homescreen wallpaper on maemo 5

    You are welcome. I'm not really located in China.

  13. #13
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    Re: how to set specified homescreen wallpaper on maemo 5

    Quote Originally Posted by divanov View Post
    You are welcome. I'm not really located in China.
    hi divanov, i have some problem with the setWallpaper() function, what is the parameter of that function. the first one is my wallpaper path what i want, the second one is return ID in the getXIntProperty() function. but it doesn't work, the problem is the return value of gconf_client_set_string(), maybe the parameter is wrong when call that.

  14. #14
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    Re: how to set specified homescreen wallpaper on maemo 5

    Quote Originally Posted by denniswang View Post
    hi divanov, i have some problem with the setWallpaper() function, what is the parameter of that function. the first one is my wallpaper path what i want, the second one is return ID in the getXIntProperty() function. but it doesn't work, the problem is the return value of gconf_client_set_string(), maybe the parameter is wrong when call that.
    And what is a content of gconf_client_set_string error message?

  15. #15
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    Re: how to set specified homescreen wallpaper on maemo 5

    Quote Originally Posted by divanov View Post
    And what is a content of gconf_client_set_string error message?
    the error is "segmentation fault"

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