Minor doc edits.

	* pango/pangowin32-fontcache.c, pango/pangox-fontcache.c: Minor doc edits.

	* docs/tmpl/win32-fonts.sgml: Document PangoWin32FontCache.

	* docs/tmpl/x-fonts.sgml: Document PangoXFontCache.

	* docs/tmpl/glyphs.sgml: Document PangoGlyphInfo.

	* docs/tmpl/opentype.sgml: Document PangoOTInfo, PangoOTTag,
	PangoOTTableType.

4 files changed, 24 insertions, 11 deletions

diff --git a/docs/tmpl/glyphs.sgml b/docs/tmpl/glyphs.sgml
index 04d2ba5f..a43b2905 100644
--- a/docs/tmpl/glyphs.sgml
+++ b/docs/tmpl/glyphs.sgml
@@ -124,12 +124,14 @@ form of a string. It contains the following fields.
 
 <!-- ##### STRUCT PangoGlyphInfo ##### -->
 <para>
-
+The #PangoGlyphInfo structure represents a single glyph together with
+positioning information and visual attributes.
+It contains the following fields.
 </para>
 
-@glyph: 
-@geometry: 
-@attr: 
+@glyph: the glyph itself.
+@geometry: the positional information about the glyph.
+@attr: the visual attributes of the glyph. 
 
 <!-- ##### STRUCT PangoGlyphGeometry ##### -->
 <para>
diff --git a/docs/tmpl/opentype.sgml b/docs/tmpl/opentype.sgml
index 42656151..8e3a0d4e 100644
--- a/docs/tmpl/opentype.sgml
+++ b/docs/tmpl/opentype.sgml
@@ -16,13 +16,20 @@ OpenType Font Handling
 
 <!-- ##### TYPEDEF PangoOTTag ##### -->
 <para>
-
+The <type>PangoOTTag</type> typedef is used to represent TrueType and OpenType
+four letter tags inside Pango. Use the <function>FT_MAKE_TAG()</function> macro
+defined in the FreeType2 header <filename>freetype/freetype.h</filename> to 
+create <type>PangoOTTag</type>s manually.
 </para>
 
 
 <!-- ##### STRUCT PangoOTInfo ##### -->
 <para>
-
+The <structname>PangoOTInfo</structname> struct contains the various 
+tables associated with an OpenType font. It contains only private fields and
+should only be accessed via the <function>pango_ot_info_*</function> functions
+which are documented below. To obtain a <structname>PangoOTInfo</structname>,
+use pango_ot_info_new().
 </para>
 
 
@@ -34,11 +41,13 @@ OpenType Font Handling
 
 <!-- ##### ENUM PangoOTTableType ##### -->
 <para>
-
+The <type>PangoOTTableType</type> enumeration values are used to
+identify the various OpenType tables in the
+<function>pango_ot_info_*</function> functions.
 </para>
 
-@PANGO_OT_TABLE_GSUB: 
-@PANGO_OT_TABLE_GPOS: 
+@PANGO_OT_TABLE_GSUB: The GSUB table.
+@PANGO_OT_TABLE_GPOS: The GPOS table.
 
 <!-- ##### FUNCTION pango_ot_info_new ##### -->
 <para>
diff --git a/docs/tmpl/win32-fonts.sgml b/docs/tmpl/win32-fonts.sgml
index 9c801fd2..e887a105 100644
--- a/docs/tmpl/win32-fonts.sgml
+++ b/docs/tmpl/win32-fonts.sgml
@@ -85,7 +85,8 @@ g_quark_from_string()) is used to identify the renderer in pango_find_map().
 
 <!-- ##### STRUCT PangoWin32FontCache ##### -->
 <para>
-
+A <structname>PangoWin32FontCache</structname> caches
+<structname>HFONT</structname>s by their <structname>LOGFONT</structname> descriptions. 
 </para>
 
 
diff --git a/docs/tmpl/x-fonts.sgml b/docs/tmpl/x-fonts.sgml
index a97a0c1b..eabc2afa 100644
--- a/docs/tmpl/x-fonts.sgml
+++ b/docs/tmpl/x-fonts.sgml
@@ -176,7 +176,8 @@ glyph index.
 
 <!-- ##### STRUCT PangoXFontCache ##### -->
 <para>
-
+A <structname>PangoXFontCache</structname> caches
+<structname>XFontStruct</structname>s for a single display by their XLFD name. 
 </para>