Sets whether there is a selection to print.
Application has to set number of pages to which the selection will draw by gtk_print_operation_set_n_pages() in a callback of #GtkPrintOperation::begin-print.
%TRUE indicates that a selection exists
2.18
See Implementation
Sets whether there is a selection to print.
Application has to set number of pages to which the selection will draw by gtk_print_operation_set_n_pages() in a callback of #GtkPrintOperation::begin-print.