Richview trvdocparameters page parameter settings

RichView  TRVDocParameters Page setup

      One 、TRVDocParameters

      This is a TRichView.DocParameters A type of . It contains document and page properties , Can be written to or from RVF (RichView Format ) and RTF( Rich text format ) Read . Components do not use these properties , But you can use AssignDocParameters Method assigns them to TRVPrint.

      Two 、 attribute :

Units – Page margins 、 Paper size 、 Measurement unit of header and footer position ;

PageWidth, ageHeight – Page size ;

Orientation – Page orientation ;

LeftMargin, RightMargin, TopMargin, BottomMargin – Page margins ;

MirrorMargins – Allow left and right margins to be swapped on even pages ;

HeaderY, FooterY  – Position of header and footer ;

TitlePage  Show / Hide the header and footer of the first page ;

FacingPages – Show / Hide headers and footers of even pages ;

ZoomMode – Zoom mode ;

ZoomPercent – Zoom percentage .

Author, Title, Comments – author , title , Comment on - Text attribute .

Be careful ：Units The default value of rvuInches（ centimeter ）, Another value of it ：rvuPixels（  A unit = 1/Style, If Style = nil, The value is 1/96 Inch ）

          Not right Units Direct assignment , You should use ConvertToUnits Convert all sizes to new units .

      3、 ... and 、 Set up

procedure TRichView_TEMP_Frm.Button7Click(Sender: TObject);
var DP: TRVDocParameters;
begin
  DP := SRichViewEdit1.RichViewEdit.DocParameters;
  DP.Units := rvuMillimeters;
  DP.PageWidth := 210;
  DP.PageHeight := 297;
  DP.LeftMargin := 30;
  DP.RightMargin := 15;
  DP.TopMargin := 20;
  DP.BottomMargin := 20;
  DP.HeaderY := 10;
  DP.FooterY := 10;
end;

      The above is usually A4 Parameter Settings .