Commit dc604697 authored by Eli Zaretskii's avatar Eli Zaretskii

src/xdisp.c (try_window_id): Update commentary.

parent f96d0a6b
......@@ -17333,9 +17333,16 @@ row_containing_pos (struct window *w, ptrdiff_t charpos,
Value is
1 if display has been updated
0 if otherwise unsuccessful
>= 1 if successful, i.e. display has been updated
specifically:
1 means the changes were in front of a newline that precedes
the window start, and the whole current matrix was reused
2 means the changes were after the last position displayed
in the window, and the whole current matrix was reused
3 means portions of the current matrix were reused, while
some of the screen lines were redrawn
-1 if redisplay with same window start is known not to succeed
0 if otherwise unsuccessful
The following steps are performed:
......
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