updated docs

docs/docs/api.xml

@@ -297,6 +297,10 @@
                         <name>draw_solid_circle</name>
                         <link>dlib/gui_widgets/canvas_drawing_abstract.h.html#draw_solid_circle</link>
                      </item>
+                     <item>
+                        <name>draw_solid_convex_polygon</name>
+                        <link>dlib/gui_widgets/canvas_drawing_abstract.h.html#draw_solid_convex_polygon</link>
+                     </item>
                      <item>
                         <name>draw_button_down</name>
                         <link>dlib/gui_widgets/canvas_drawing_abstract.h.html#draw_button_down</link>

docs/docs/term_index.xml

@@ -905,6 +905,7 @@
          <term file="dlib/gui_widgets/canvas_drawing_abstract.h.html" name="draw_circle"/>
          <term file="dlib/gui_widgets/canvas_drawing_abstract.h.html" name="draw_pixel"/>
          <term file="dlib/gui_widgets/canvas_drawing_abstract.h.html" name="draw_solid_circle"/>
+         <term file="dlib/gui_widgets/canvas_drawing_abstract.h.html" name="draw_solid_convex_polygon"/>
          <term file="dlib/gui_widgets/canvas_drawing_abstract.h.html" name="draw_button_down"/>
          <term file="dlib/gui_widgets/canvas_drawing_abstract.h.html" name="draw_sunken_rectangle"/>
          <term file="dlib/gui_widgets/canvas_drawing_abstract.h.html" name="draw_button_up"/>