Sets the amount of spacing in Pango units between
the lines of the layout.
When placing lines with spacing, Pango arranges things so that
line2.top = line1.bottom + spacing
The default value is 0.
Note: Since 1.44, Pango is using the line height (as determined
by the font) for placing lines when the line spacing factor is set
to a non-zero value with [method@Pango.Layout.set_line_spacing].
In that case, the @spacing set with this function is ignored.
Note: for semantics that are closer to the CSS line-height
property, see [func@Pango.attr_line_height_new].
Sets the amount of spacing in Pango units between the lines of the layout.
When placing lines with spacing, Pango arranges things so that
line2.top = line1.bottom + spacing
The default value is 0.
Note: Since 1.44, Pango is using the line height (as determined by the font) for placing lines when the line spacing factor is set to a non-zero value with [method@Pango.Layout.set_line_spacing]. In that case, the @spacing set with this function is ignored.
Note: for semantics that are closer to the CSS line-height property, see [func@Pango.attr_line_height_new].