Determines if a header is set to be printed for each page.
A header will be printed if this function returns %TRUE **and** some format strings have been specified with [method@PrintCompositor.set_header_format].
%TRUE if the header is set to be printed.
See Implementation
Determines if a header is set to be printed for each page.
A header will be printed if this function returns %TRUE **and** some format strings have been specified with [method@PrintCompositor.set_header_format].