clear_glyph_matrix_rows 3772 src/dispextern.h void clear_glyph_matrix_rows (struct glyph_matrix *, int, int);
clear_glyph_matrix_rows  745 src/dispnew.c        clear_glyph_matrix_rows (matrix, 0, matrix->nrows);
clear_glyph_matrix_rows 22430 src/xdisp.c          clear_glyph_matrix_rows (current_matrix, bottom_vpos + dvpos,
clear_glyph_matrix_rows 22437 src/xdisp.c          clear_glyph_matrix_rows (current_matrix, first_unchanged_at_end_vpos,