from 'src/extension/internal/cairo-png-out.cpp':
/*
* A quick hack to use the Cairo renderer to write out a file. This
* then makes 'save as...' PNG.
*
Related issue:
The internal output extension 'org.inkscape.output.png.cairo' seems to get used (instead of 'sp_export_png_file()'?) when pasting the clipboard contents from Inkscape into e.g. a raster image editor like GIMP: the pasted images always have a white solid background and show the same rendering errors (e.g. with patterns) or missing filter effects as when saving an SVG drawing as "Cairo PNG".
from 'src/extension/ internal/ cairo-png- out.cpp' :
/*
* A quick hack to use the Cairo renderer to write out a file. This
* then makes 'save as...' PNG.
*
Related issue: output. png.cairo' seems to get used (instead of 'sp_export_ png_file( )'?) when pasting the clipboard contents from Inkscape into e.g. a raster image editor like GIMP: the pasted images always have a white solid background and show the same rendering errors (e.g. with patterns) or missing filter effects as when saving an SVG drawing as "Cairo PNG".
The internal output extension 'org.inkscape.
Bug #404826 “copy an object from inkscape to system clipboard doesn't keep transparency” /bugs.launchpad .net/inkscape/ +bug/404826>
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