added orient parameter to wxMDIParentFrame::Tile()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32951 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/mdi.tex

@@ -545,9 +545,12 @@ To remove the window completely, use the wxFRAME\_NO\_WINDOW\_MENU window style.
 
 \membersection{wxMDIParentFrame::Tile}\label{wxmdiparentframetile}
 
-\func{void}{Tile}{\void}
+\func{void}{Tile}{\param{wxOrientation}{ orient = wxHORIZONTAL}}
 
-Tiles the MDI child windows.
+Tiles the MDI child windows either horizontally or vertically depending on
+whether \arg{orient} is wxHORIZONTAL or wxVERTICAL.
+
+Currently only implemented for MSW, does nothing under the other platforms.
 
 \wxheading{See also}