Context.glyphExtents

void glyphExtents(cairo.glyph.Glyph glyphs, int numGlyphs, out cairo.types.TextExtents extents)

Gets the extents for an array of glyphs. The extents describe a user-space rectangle that encloses the "inked" portion of the glyphs, (as they would be drawn by cairo.context.Context.showGlyphs). Additionally, the x_advance and y_advance values indicate the amount by which the current point would be advanced by cairo.context.Context.showGlyphs.

Note that whitespace glyphs do not contribute to the size of the rectangle (extents.width and extents.height).

Parameters

`glyphs`	an array of #cairo_glyph_t objects
`numGlyphs`	the number of elements in glyphs
`extents`	a #cairo_text_extents_t object into which the results will be stored