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  1. #1
    Registered User
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    Sep 2008
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    How to apply patch to existing application

    I have an application which will be generic,

    I want that user can customize my application as per his/her requirement via downloading some files (Patch files) via internet and can get the application customize as per his own way.
    This will perfectly work when Generic application is already present on device and user is downloading patch files.

    My question is how can I know at any time (downloading, installing) patch files that generic application is present on user's device or not?

    One more thing this patch file should be added/updated to the application's private directory. Is it possible?

  2. #2
    Nokia Developer Moderator
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    Re: How to apply patch to existing application

    Quote Originally Posted by boletushar View Post
    My question is how can I know at any time (downloading, installing) patch files that generic application is present on user's device or not?
    Easiest way would probably be opening the download site only from the application itself, and when opening it, giving some Url arguments identifying the application, version, language etc. anything you need on determining what should be present for the application to download.

    And if you get invalid stuff with the url, then just let the user download the base application

  3. #3
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    Re: How to apply patch to existing application

    Yes If that is the case then no problem,

    These customized patches will be different for different purpose and will be downloaded within/outside(Via browser) of base application.
    my question is while installing these patches can I come to know the base application is installed or not. Or even after installation.

  4. #4
    Nokia Developer Moderator
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    Re: How to apply patch to existing application

    you could use for example Requisite Lines : http://www.developer.nokia.com/Commu...e_File_Options or use the if exists with a file that is in public folders and is installed with main file.

    or even have executable run during installation , which would check whether the app exists, and maybe it could even offer downloading the app, if it is not found.

  5. #5
    Nokia Developer Moderator
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    Re: How to apply patch to existing application

    Possibly revealing remark: there are separate patch and upgrade package types, and such packages can not be installed without having the base application.

  6. #6
    Registered User
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    Sep 2008
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    57

    Re: How to apply patch to existing application

    Hello,

    Thanks symbianyucca link you provided really helped me a lot. I also wanted to ask few question,
    1) Can I launch browser and open app download link from my package file? Or need to run exe which will launch the browser with specified url.
    2) @Wizard_hu_ - Kindly explain separate patch and upgrade package types I didn't get that. Does it mean changing package header or something.

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