aVerifyDepth");      if (pmaxd) *pmaxd = 0;     if (!psame)         return ERROR_INT("psame not defined", procName, 0);     if (!pixa)         return ERROR_INT("pixa not defined", procName, 0);     if ((n = pixaGetCount(pixa)) == 0)         return ERROR_INT("no pix in pixa", procName, 0);      same = 0;     pixaGetPixDimensions(pixa, 0, 