c_gtk_source_print_compositor_set_header_format

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
void function(GtkSourcePrintCompositor* compositor, gboolean separator, gchar* left, gchar* center, gchar* right) c_gtk_source_print_compositor_set_header_format;

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