(x_draw_glyph_string_background): Clear the background

manually when cleartype is in use.
(x_draw_glyph_string_foreground): Draw text transparently when
cleartype is in use.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/w32term.c b/src/w32term.c
index 57455303ed5..25ecccfd6ba 100644
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -1846,6 +1846,7 @@ x_draw_glyph_string_background (s, force_p)
                || s->font_not_found_p
                || s->extends_to_end_of_line_p
                || s->font->bdf
+               || cleartype_active
                || force_p)
         {
           x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
@@ -1874,7 +1875,8 @@ x_draw_glyph_string_foreground (s)
   else
     x = s->x;
 
-  if (s->for_overlaps || (s->background_filled_p && s->hl != DRAW_CURSOR))
+  if (s->for_overlaps || (s->background_filled_p && s->hl != DRAW_CURSOR)
+      || cleartype_active)
     SetBkMode (s->hdc, TRANSPARENT);
   else
     SetBkMode (s->hdc, OPAQUE);