Sets the currently-selected font.
Note that the @fontsel needs to know the screen in which it will appear for this to work; this can be guaranteed by simply making sure that the @fontsel is inserted in a toplevel window before you call this function.
a font name like “Helvetica 12” or “Times Bold 18”
%TRUE if the font could be set successfully; %FALSE if no such font exists or if the @fontsel doesn’t belong to a particular screen yet.
Deprecated: Use #GtkFontChooser
See Implementation
Sets the currently-selected font.
Note that the @fontsel needs to know the screen in which it will appear for this to work; this can be guaranteed by simply making sure that the @fontsel is inserted in a toplevel window before you call this function.