On Sun, 22 Feb 2015, Scott Talbert wrote:
When calling gtk_print_operation_run(), I'm seeing this GTK error:
Gtk-CRITICAL **: Error building template class 'GtkPrintUnixDialog' for an
instance of type 'GtkPrintUnixDialog': Invalid object type
`GtkPrinterOptionWidget' on line 567
Does anyone know what might be the issue?
This is the code for calling gtk_print_operation_run:
GtkPrintOperationResult response = gtk_print_operation_run
(
printOp,
GetShowDialog()
?
GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG
:
GTK_PRINT_OPERATION_ACTION_PRINT,
m_parent
?
GTK_WINDOW(gtk_widget_get_toplevel(m_parent->m_widget))
: NULL,
&gError
);
Okay, I've debugged this further. Ultimately, what is happening here is
GTK+ is calling dlsym() (via _g_module_symbol()) to lookup the
gtk_printer_option_widget_get_type function and it fails to find it, ie,
dlsym() returns NULL.
What I neglected to mention in the first place is that this failure is
occurring when running as a Python application (wxPython to be specific).
When I run the same code as a C++ application (wxWidgets), the failure
does not occur. Presumably this failure is occurring because the python
binary itself is not linked with the GTK+ library.
Does anyone have any ideas of how to resolve this?
Thanks,
Scott
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