[gtk+] docs: add docs for some printing enums

[William Jon McCann <mccann src gnome org>]

commit 0db5d93884b28474169a049a3676c0416f84cc26
Author: William Jon McCann <william jon mccann gmail com>
Date:   Tue Jan 21 12:36:29 2014 -0500

    docs: add docs for some printing enums

 gtk/gtkenums.h |   35 +++++++++++++++++++++++++++++++++++
 1 files changed, 35 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkenums.h b/gtk/gtkenums.h
index cc202bc..95ec910 100644
--- a/gtk/gtkenums.h
+++ b/gtk/gtkenums.h
@@ -895,6 +895,15 @@ typedef enum
   GTK_NUMBER_UP_LAYOUT_BOTTOM_TO_TOP_RIGHT_TO_LEFT  /*< nick=btrl >*/
 } GtkNumberUpLayout;
 
+/**
+ * GtkPageOrientation:
+ * @GTK_PAGE_ORIENTATION_PORTRAIT: Portrait mode.
+ * @GTK_PAGE_ORIENTATION_LANDSCAPE: Landscape mode.
+ * @GTK_PAGE_ORIENTATION_REVERSE_PORTRAIT: Reverse portrait mode.
+ * @GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE: Reverse landscape mode.
+ *
+ * See also gtk_print_settings_set_orientation().
+ */
 typedef enum
 {
   GTK_PAGE_ORIENTATION_PORTRAIT,
@@ -903,6 +912,15 @@ typedef enum
   GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE
 } GtkPageOrientation;
 
+/**
+ * GtkPrintQuality:
+ * @GTK_PRINT_QUALITY_LOW: Low quality.
+ * @GTK_PRINT_QUALITY_NORMAL: Normal quality.
+ * @GTK_PRINT_QUALITY_HIGH: High quality.
+ * @GTK_PRINT_QUALITY_DRAFT: Draft quality.
+ *
+ * See also gtk_print_settings_set_quality().
+ */
 typedef enum
 {
   GTK_PRINT_QUALITY_LOW,
@@ -911,6 +929,14 @@ typedef enum
   GTK_PRINT_QUALITY_DRAFT
 } GtkPrintQuality;
 
+/**
+ * GtkPrintDuplex:
+ * @GTK_PRINT_DUPLEX_SIMPLEX: No duplex.
+ * @GTK_PRINT_DUPLEX_HORIZONTAL: Horizontal duplex.
+ * @GTK_PRINT_DUPLEX_VERTICAL: Vertical duplex.
+ *
+ * See also gtk_print_settings_set_duplex().
+ */
 typedef enum
 {
   GTK_PRINT_DUPLEX_SIMPLEX,
@@ -919,6 +945,15 @@ typedef enum
 } GtkPrintDuplex;
 
 
+/**
+ * GtkUnit:
+ * @GTK_UNIT_NONE: No units.
+ * @GTK_UNIT_POINTS: Dimensions in points.
+ * @GTK_UNIT_INCH: Dimensions in inches.
+ * @GTK_UNIT_MM: Dimensions in millimeters
+ *
+ * See also gtk_print_settings_set_paper_width().
+ */
 typedef enum
 {
   GTK_UNIT_NONE,