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-rw-r--r--pango/glyphstring.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/pango/glyphstring.c b/pango/glyphstring.c
index 9a930a37..f4766191 100644
--- a/pango/glyphstring.c
+++ b/pango/glyphstring.c
@@ -125,7 +125,8 @@ pango_glyph_string_free (PangoGlyphString *string)
* pango_glyph_string_extents_range:
* @glyphs: a #PangoGlyphString
* @start: start index
- * @end: end index
+ * @end: end index (the range is the set of bytes with
+ indices such that start <= index < end)
* @font: a #PangoFont
* @ink_rect: rectangle used to store the extents of the glyph string range as drawn
* or %NULL to indicate that the result is not needed.