X-Git-Url: https://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Fcwindowgui.C;h=af778e598350e08dc69eb829a6578edc10bf7496;hb=9c8644d5f3f05b52a81c259c32217bcd57792ae5;hp=0ee1d6751906ec6a4992c6feaf4c90ade928c9a5;hpb=f7444a58936e4ab8fa7e7062281567cbc74e175f;p=goodguy%2Fcinelerra.git

diff --git a/cinelerra-5.1/cinelerra/cwindowgui.C b/cinelerra-5.1/cinelerra/cwindowgui.C
index 0ee1d675..af778e59 100644
--- a/cinelerra-5.1/cinelerra/cwindowgui.C
+++ b/cinelerra-5.1/cinelerra/cwindowgui.C
@@ -2018,13 +2018,21 @@ int CWindowCanvas::do_mask(int &redraw, int &rerender,
 		SubMask *mask = gui->mask_keyframe->get_submask(mwindow->edl->session->cwindow_mask);
 		ArrayList<MaskPoint*> &mask_points = mask->points;
 #endif
-		MaskPoint *point = mask_points.values[gui->affected_point];
-		gui->center_x = point->x;
-		gui->center_y = point->y;
-		gui->control_in_x = point->control_x1;
-		gui->control_in_y = point->control_y1;
-		gui->control_out_x = point->control_x2;
-		gui->control_out_y = point->control_y2;
+		int k = gui->affected_point;
+		if( k >= 0 && k < mask_points.size() ) {
+			MaskPoint *point = mask_points.values[k];
+			gui->center_x = point->x;
+			gui->center_y = point->y;
+			gui->control_in_x = point->control_x1;
+			gui->control_in_y = point->control_y1;
+			gui->control_out_x = point->control_x2;
+			gui->control_out_y = point->control_y2;
+		}
+		else {
+			gui->center_x = gui->center_y = 0;
+			gui->control_in_x = gui->control_in_y = 0;
+			gui->control_out_x = gui->control_out_y = 0;
+		}
 		gui->tool_panel->raise_window();
 	}