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SurfaceGuard

frus_widgets

Struct SurfaceGuard 

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pub struct SurfaceGuard { /* private fields */ }
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Holds a surface installed — see MediaQuery::install. Dropping it puts back the description and the reader’s font size that were in force before.

The two live in one guard so that they cannot be held for different lengths of time, which is exactly how they came apart in milestone 407.

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