set_frame_matrix_frame 3231 src/dispnew.c        set_frame_matrix_frame (NULL);
set_frame_matrix_frame 3298 src/dispnew.c        set_frame_matrix_frame (f);
set_frame_matrix_frame 3358 src/dispnew.c    set_frame_matrix_frame (f);
set_frame_matrix_frame 3476 src/dispnew.c        set_frame_matrix_frame (NULL);