Index: trunk/src/data.c
===================================================================
--- trunk/src/data.c	(revision 21810)
+++ trunk/src/data.c	(revision 21811)
@@ -799,12 +799,13 @@
 #include "obj_arc_draw.h"
 #include "obj_line_draw.h"
 #include "conf_core.h"
-void pcb_data_clear_obj_flag(pcb_data_t *data, pcb_objtype_t tmask, unsigned long flag, int redraw)
+unsigned long pcb_data_clear_obj_flag(pcb_data_t *data, pcb_objtype_t tmask, unsigned long flag, int redraw)
 {
 	pcb_rtree_it_t it;
 	pcb_box_t *n;
 	int li;
 	pcb_layer_t *l;
+	unsigned long cnt = 0;
 
 	conf_core.temp.rat_warn = pcb_false;
 
@@ -814,6 +815,7 @@
 				PCB_FLAG_CLEAR(flag, (pcb_any_obj_t *)n);
 				if (redraw)
 					pcb_pstk_invalidate_draw((pcb_pstk_t *)n);
+				cnt++;
 			}
 		}
 		pcb_r_end(&it);
@@ -831,6 +833,7 @@
 					PCB_FLAG_CLEAR(flag, (pcb_any_obj_t *)n);
 					if (redraw)
 						pcb_line_invalidate_draw(l, (pcb_line_t *)n);
+					cnt++;
 				}
 			}
 			pcb_r_end(&it);
@@ -842,6 +845,7 @@
 					PCB_FLAG_CLEAR(flag, (pcb_any_obj_t *)n);
 					if (redraw)
 						pcb_arc_invalidate_draw(l, (pcb_arc_t *)n);
+					cnt++;
 				}
 			}
 			pcb_r_end(&it);
@@ -853,6 +857,7 @@
 					PCB_FLAG_CLEAR(flag, (pcb_any_obj_t *)n);
 					if (redraw)
 						pcb_poly_invalidate_draw(l, (pcb_poly_t *)n);
+					cnt++;
 				}
 			}
 			pcb_r_end(&it);
@@ -864,16 +869,18 @@
 					PCB_FLAG_CLEAR(flag, (pcb_any_obj_t *)n);
 					if (redraw)
 						pcb_text_invalidate_draw(l, (pcb_text_t *)n);
+					cnt++;
 				}
 			}
 			pcb_r_end(&it);
 		}
 	}
+	return cnt;
 }
 
-void pcb_data_clear_flag(pcb_data_t *data, unsigned long flag, int redraw)
+unsigned long pcb_data_clear_flag(pcb_data_t *data, unsigned long flag, int redraw)
 {
-	pcb_data_clear_obj_flag(data, PCB_OBJ_CLASS_REAL, flag, redraw);
+	return pcb_data_clear_obj_flag(data, PCB_OBJ_CLASS_REAL, flag, redraw);
 }
 
 
Index: trunk/src/data.h
===================================================================
--- trunk/src/data.h	(revision 21810)
+++ trunk/src/data.h	(revision 21811)
@@ -217,9 +217,9 @@
 void pcb_data_flag_change(pcb_data_t *data, pcb_objtype_t mask, int how, unsigned long flags);
 
 /* Clear specific static flag from all objects, optionally with matching
-   object types only. */
-void pcb_data_clear_obj_flag(pcb_data_t *data, pcb_objtype_t tmask, unsigned long flag, int redraw);
-void pcb_data_clear_flag(pcb_data_t *data, unsigned long flag, int redraw);
+   object types only. Returns number of object changed. */
+unsigned long pcb_data_clear_obj_flag(pcb_data_t *data, pcb_objtype_t tmask, unsigned long flag, int redraw);
+unsigned long pcb_data_clear_flag(pcb_data_t *data, unsigned long flag, int redraw);
 
 /* Clear the given dyflag bit from all objects under data */
 void pcb_data_dynflag_clear(pcb_data_t *data, pcb_dynf_t dynf);