added the mention of library in which each class is defined to the documentation (patch 1756715)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47777 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/bufferdc.tex

@@ -46,6 +46,10 @@ buffering on the systems which already do it automatically.
 
 <wx/dcbuffer.h>
 
+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+
 \wxheading{See also}
 
 \helpref{wxDC}{wxdc},\rtfsp
@@ -132,6 +136,10 @@ already does this internally for the real underlying wxPaintDC.
 
 <wx/dcbuffer.h>
 
+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+
 \wxheading{See also}
 
 \helpref{wxDC}{wxdc},\rtfsp