Question about GtkComboBox

[Igor Korot <ikorot01 gmail com>]

Hi, ALL,
I am using GtkComboBox and I need to show the dropdown
list in my program.

I found a function gtk_combo_box_popup() but the documentation
says that it should be used for the accessibility purposes.

Does this mean I can't use it? And if I can't what are the drawbacks?
Is there another way to show the dropdown of the combo box?

Thank you.