- guint (*top_ypixel)(const GSheetRow *geo, gint row, const GtkSheet *);
- gint (*pixel_to_row)(const GSheetRow *geo, guint pixel, const GtkSheet *);
+ const GtkSheetChild * (*get_button_child) (const GSheetRow *geo,
+ glong row, gpointer);
+
+ guint (*top_ypixel) (const GSheetRow *geo, glong row, gpointer);
+ glong (*pixel_to_row) (const GSheetRow *geo, guint pixel, gpointer);