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# persisting state
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There are two ways to persist state and preference either with VLC variables or
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using Qt QSettings system. the rule of thumb is that settings & preferences
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should be stored using VLC variables (should we display CSD, should the
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application resize to the video size, etc), whereas application state (window
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position, is the playlist visible) should be stored in QSettings
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* Most settings & preferences will be loaded by MainCtx within the
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`MainCtx::loadPrefs` procedure. Settings may be loaded manually for specific
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use case using the usual VLC `var_inheritXXXX` API on the `qt_intf_t` object.
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* Most states will be loaded by MainCtx within the
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`MainCtx::loadFromSettingsImpl` and saved within `MainCtx` destructor
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the QSetting instance is store in the `qt_intf_t` object if there is a need to
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access outside of MainCtx. |
