cairoRegionCreateFromSurface

fncairo.region.Region cairoRegionCreateFromSurface(cairo.surface.Surface surface)

Creates region that covers the area where the given surface is more than 50% opaque.

This function takes into account device offsets that might be set with [cairo.surface.Surface.setDeviceOffset].

Parameters

surfacea cairo surface

Returns

A [cairo.region.Region]