rif->update_window_begin_hook (w);
yb = window_text_bottom_y (w);
-
- /* If window has a header line, update it before everything else.
- Adjust y-positions of other rows by the header line height. */
row = desired_matrix->rows;
end = row + desired_matrix->nrows - 1;
+ /* Take note of the header line, if there is one. We will
+ update it below, after updating all of the window's lines. */
if (row->mode_line_p)
{
header_line_row = row;
/* Update the rest of the lines. */
for (; row < end && (force_p || !input_pending); ++row)
+ /* scrolling_window resets the enabled_p flag of the rows it
+ reuses from current_matrix. */
if (row->enabled_p)
{
int vpos = MATRIX_ROW_VPOS (row, desired_matrix);