[gtkmm/gtkmm-3-4] Slight rewrite of documentation

[Murray Cumming <murrayc src gnome org>]

commit 0d3c066f756fabc9a08f028a2f5d9b97c277c980
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon May 28 21:54:09 2012 +0200

    Slight rewrite of documentation

 gtk/src/widget.hg |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/gtk/src/widget.hg b/gtk/src/widget.hg
index 83c7b6e..986b736 100644
--- a/gtk/src/widget.hg
+++ b/gtk/src/widget.hg
@@ -819,6 +819,15 @@ protected:
   _IGNORE(gtk_widget_get_child_requisition) //deprecated.
 
   //The parameter name is "the_property_name" to avoid a warning because there is a method with the "property_name" name.
+
+  /** Gets the value of a style property of @a widget.
+   * 
+   * It is usually easier to use get_style_property(), to avoid the use of 
+   * Glib::Value.
+   *
+   * @param the_property_name The name of a style property.
+   * @param value Location to return the property value.
+   */
   _WRAP_METHOD(void get_style_property_value(
                    const Glib::ustring& the_property_name, Glib::ValueBase& value) const,
                gtk_widget_style_get_property)