get_approximate_digit_width

Gets the approximate digit width for a font metrics structure.

This is merely a representative value useful, for example, for determining the initial size for a window. Actual digits in text can be wider or narrower than this, though this value is generally somewhat more accurate than the result of get_approximate_char_width for digits.

Parameters:

this	a `PangoFontMetrics` structure

Returns:

the digit width, in Pango units.