set_decimal_point
Description:
Sets the Unicode character to use as decimal point.
This is only relevant for tabs with pango_tab_decimal alignment, which align content at the first occurrence of the decimal point character.
By default, Pango uses the decimal point according to the current locale.
Parameters:
| this |
a `PangoTabArray` |
| tab_index |
the index of a tab stop |
| decimal_point |
the decimal point to use |