Implementation of wxGenericDialog that prompts for a text string.
Use show_modal to display and get_text_value to retrieve the entered value
and set_text to set the text.
Creation Parameters
- atom parent
- sequence message
- sequencecaption [= "Please enter text"]
- sequencedefault [= ""]
- atom style [= wxOK | wxCANCEL | wxCENTRE]
- integer pos_x [= -1]
- integer pos_y [= -1]