many compilation fixes for WinCE using VC8 (it now build, although still doesn't work)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47749 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/bitmap.cpp

@@ -374,6 +374,8 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon,
     return true;
 #else // __WXMICROWIN__ || __WXWINCE__
     wxUnusedVar(icon);
+    wxUnusedVar(transp);
+
     return false;
 #endif // !__WXWINCE__/__WXWINCE__
 }