Hi,
I have problems using the printing feature with this GTK 2.x code:
----8<--------8<--------8<--------8<--------8<----
GtkPrintOperation *print;
GtkPrintOperationResult res;
print = gtk_print_operation_new ();
if (settings != NULL)
gtk_print_operation_set_print_settings (print, settings);
g_signal_connect (print, "status-changed", G_CALLBACK
(print_status_changed), NULL);
g_signal_connect (print, "begin-print", G_CALLBACK (begin_print), NULL);
g_signal_connect (print, "request-page-setup", G_CALLBACK
(print_request_page_setup), NULL);
g_signal_connect (print, "done", G_CALLBACK (print_done), NULL);
g_signal_connect (print, "end-print", G_CALLBACK (print_end), NULL);
g_signal_connect (print, "paginate", G_CALLBACK (print_paginate), NULL);
g_signal_connect (print, "draw-page", G_CALLBACK (draw_page), NULL);
gtk_print_operation_set_allow_async(print, FALSE);
gtk_print_operation_set_job_name(operation, "myprog");
gtk_print_operation_set_n_pages(operation, n_pages);
gtk_print_operation_set_use_full_page (operation, TRUE);
gtk_print_operation_set_unit (operation, GTK_UNIT_POINTS);
res = gtk_print_operation_run (print,
GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
GTK_WINDOW (main_window), NULL);
printf("on_button5_clicked gtk_print_operation_run result: %d\n", res);
----8<--------8<--------8<--------8<--------8<----
The problem is that my code only receives the "status-changed" event twice,
once with |GTK_PRINT_STATUS_INITIAL |and then with |GTK_PRINT_STATUS_PREPARING|. At this
point,
the printer dialog disappears but my code doesn't receive any other printing
event
or the result of gtk_print_operation_run().
I have used
gtk_print_operation_set_allow_async(print, FALSE);
since I want the printing to be synchronous, at least up to spooling the print
job.
The same happens without gtk_print_operation_set_allow_async(), I guess this is
the default.
The printing events progress further only when I press Ctrl-C in the terminal
from where I started this program. Only then I receive these in order:
- begin-print
- paginate
- status-change with status = |GTK_PRINT_STATUS_GENERATING_DATA
|- request-page-setup with page_nr 0
- draw-page with page_nr 0
- end-print
- status-change with status = |GTK_PRINT_STATUS_SENDING_DATA|
- status-change with status = |GTK_PRINT_STATUS_PRINTING|
- done with result = GTK_PRINT_OPERATION_RESULT_APPLY
Do I have to do something special in the status-changed callback to drive the
printing further? I am on Fedora 17/x86_64 if that's interesting.
Thanks in advance,
Zoltán Böszörményi
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