Here is a list of all variables with links to the classes they belong to:

• d_qApplication : gr::display::show_image_impl, gr::display::show_text_impl, gr::display::text_msg_impl
• displayArea : Ui_ShowPngPicture
• displayWidget : Ui_ShowPngPicture
• gridLayout : Ui_ShowPngPicture
• horizontalLayout : Ui_ShowPngPicture
• horizontalSpacer : Ui_ShowPngPicture
• reverse : Ui_ShowPngPicture
• saveButton : Ui_ShowPngPicture