Index: trunk/pswarp/src/pswarp.h
===================================================================
--- trunk/pswarp/src/pswarp.h	(revision 12505)
+++ trunk/pswarp/src/pswarp.h	(revision 12523)
@@ -48,6 +48,6 @@
 pswarpMapGrid *pswarpMapGridFromImage (pmReadout *dest, pmReadout *src, int nXpix, int nYpix);
 bool pswarpMapGridSetGrid (pswarpMapGrid *grid, int ix, int iy, int *gridX, int *gridY);
-bool pswarpMapGridNextGrid_X (pswarpMapGrid *grid, int gridX, int *nextX);
-bool pswarpMapGridNextGrid_Y (pswarpMapGrid *grid, int gridY, int *nextY);
+int pswarpMapGridNextGrid_X (pswarpMapGrid *grid, int gridX);
+int pswarpMapGridNextGrid_Y (pswarpMapGrid *grid, int gridY);
 double pswarpMapGridMaxError (pswarpMapGrid *grid);
 bool pswarpMapApply (double *outX, double *outY, pswarpMap *map, double inX, double inY);