pango:font-family-is-monospace (object)

object -- a pango:font-family object
setting -- true if object is monospace

A monospace font is a font designed for text display where the characters form a regular grid. For Western languages this would mean that the advance width of all characters are the same, but this categorization also includes Asian fonts which include double-width characters. The g_unichar_iswide() function returns a result that indicates whether a character is typically double-width in a monospace font.

The best way to find out the grid-cell size is to call the pango:font-metrics-approximate-digit-width function, since the results of the pango:font-metrics-approximate-char-width function may be affected by double-width characters.

Since 1.52