gboolean (*get_button_visibility) (const GSheetRow *geo,
glong row);
- const GtkSheetChild * (*get_button_child) (const GSheetRow *geo,
- glong row);
-
guint (*top_ypixel) (const GSheetRow *geo, glong row);
glong (*pixel_to_row) (const GSheetRow *geo, guint pixel);
};