C#处理word横向问题，有谁可以直接给代码设置成横向的，或者我用word宏来解决，怎么转化为C#代码？

Sub Macro2()
With ActiveDocument.Styles(wdStyleNormal).Font
If .NameFarEast = .NameAscii Then
.NameAscii = ""
End If
.NameFarEast = ""
End With
With ActiveDocument.PageSetup
.LineNumbering.Active = False
.Orientation = wdOrientLandscape
.TopMargin = CentimetersToPoints(3.17)
.BottomMargin = CentimetersToPoints(3.17)
.LeftMargin = CentimetersToPoints(2.54)
.RightMargin = CentimetersToPoints(2.54)
.Gutter = CentimetersToPoints(0)
.HeaderDistance = CentimetersToPoints(1.5)
.FooterDistance = CentimetersToPoints(1.75)
.PageWidth = CentimetersToPoints(29.7)
.PageHeight = CentimetersToPoints(21)
.FirstPageTray = wdPrinterDefaultBin
.OtherPagesTray = wdPrinterDefaultBin
.SectionStart = wdSectionNewPage
.OddAndEvenPagesHeaderFooter = False
.DifferentFirstPageHeaderFooter = False
.VerticalAlignment = wdAlignVerticalTop
.SuppressEndnotes = False
.MirrorMargins = False
.TwoPagesOnOne = False
.BookFoldPrinting = False
.BookFoldRevPrinting = False
.BookFoldPrintingSheets = 1
.GutterPos = wdGutterPosLeft
.LayoutMode = wdLayoutModeLineGrid
End With
End Sub