• RM报表的打印偏移


    自己摸索一下
    
      RMReport1.SaveReportOptions.AutoLoadSaveSetting := True;
      RMReport1.SaveReportOptions.UseRegistry := False;
      RMReport1.SaveReportOptions.IniFileName := 'S:
    m.ini';//和每个报表文件一一对应
    
    //下面这行FileName 一定要加,而且在LoadFromFile  前面
    //原因是,程序运行,首次执行
    LoadFromFile,其调用LoadFromStream, 在LoadFromStream的最后部分会调用  FSaveReportOptions.LoadReportSetting(Self, '', False);
    这时FFileName的值是'Untitled'。
    而LoadFromFile 中在调用LoadFromStream(lStream);后才会设置 文件名。FileName := aFileName;

    所以,必须 在 LoadFromFile  前 先设置FileName值。

    RMReport1.FileName := 'd:mydoc桌面测试背景图片.rmf';
    
      RMReport1.LoadFromFile('d:mydoc桌面测试背景图片.rmf');
    
        RMReport1.ShowReport;
    或者
    RMReport1.PrintReport;
      
    
    这样无论是先预览 再点击工具栏的打印按钮
    
    还是 直接打印 ,最后的打印对话框上,都会显示 过去调试的 打印偏移值。
    
    要把 模版导出到 其他电脑,或者 相同电脑的其他文件夹 内容使用。
    只要复制2个文件,*.rm 和 *.ini
    :    
    男 lynu (lynu)    ▲▲▲▲▲    -
    盒子活跃会员
    2014-4-23 22:18:44
    1楼:    这个我看过源码,PrepareReport会将PrintOffset归零的.
    如果你不动手改rm源码,可以在
     reportObj.PrepareReport;
      //放在这里才有效
      setoffset;
      reportObj.PrintPreparedReport
    procedure TRMReport.OnTimerPrepareReportEvent(Sender: TObject);
    begin
      FTimer.Enabled := False;
      while FCurPreview = nil do
        Application.ProcessMessages;
    
      PrepareReport;//这里,好像是线程准备报表
    end;
    procedure TRMReport.ShowReport;//
    var
      lSaveThreadFlag: Boolean;
    //  tmp: DWORD;
    begin
      if FBusy then Exit;
    
      if FTimer = nil then
      begin
        FTimer := TTimer.Create(nil);
        with FTimer do
        begin
          Enabled := False;
          Interval := 10;
          OnTimer := OnTimerPrepareReportEvent;//
        end;
      end;
      procedure _RestoreReport;
      var
        i: Integer;
        lSaveErrorFlag: Boolean;
        lSaveErrorMsg: string;
        lStream: TMemoryStream;
        lReport: TRMReport;
      begin
        lSaveErrorFlag := ErrorFlag;
        lSaveErrorMsg := ErrorMsg;
        try
          if Self is TRMCompositeReport then
          begin
            for i := 0 to TRMCompositeReport(Self).Reports.Count - 1 do
            begin
              lStream := lReportList[i];
              lStream.Position := 0;
              lReport := TRMReport(TRMCompositeReport(Self).Reports[i]);
              if Assigned(lReport.FOnEndDoc) then
                lReport.FOnEndDoc(lReport);
              lReport.LoadFromStream(lStream);
            end;
          end
          else
          begin
            lStream := lReportList[0];
            lStream.Position := 0;
            LoadFromStream(lStream);//这里 第二次调用
          end;
        finally
          for i := 0 to lReportList.Count - 1 do
          begin
            TMemoryStream(lReportList[i]).Free;
          end;
          lReportList.Free;
          lReportList := nil;
          ErrorFlag := lSaveErrorFlag;
          ErrorMsg := lSaveErrorMsg;
        end;
      end;
    TRMReport.PrepareReport
    
    。。。
    
      finally
    //    if ErrorFlag then
    //      EndPages.Clear;
    
        if (FCurPreview <> nil) then
        begin
          THackPreview(FCurPreview).EndPrepareReport(Self, FThreadPrepareReport);
        end
        else if FPreview <> nil then
        begin
          THackPreview(FPreview).EndPrepareReport(Self, False);
        end;
    
        FreeProgressForm;
        _RestoreReport;
    procedure TRMReport.LoadFromStream(aStream: TStream);
    var
      lPos: Integer;
      lStr: string;
    begin
      ConvertNulls := False;
      RMCurReport := Self;
      ErrorFlag := False;
      ErrorMsg := '';
      FDocMode := rmdmDesigning;
      Clear;
      if aStream.Size < 10 then Exit;
    
      lStr := RMReadString(aStream);
      if (lStr <> RM_ReportFlagStr + #26) and (lStr <> RM_ReportFlagStr1 + #26) then
      begin
        ErrorFlag := True;
        ErrorMsg := 'Not ReportMachine Report File!';
        Application.MessageBox(PChar(RMLoadStr(SNotRMFFile)), PChar(RMLoadStr(SError)),
          mb_Ok + mb_IconError);
        Pages.Clear;
        Pages.AddReportPage;
        Exit;
      end;
    
      FReportVersion := RMReadWord(aStream);
      if FReportVersion > RMCurrentVersion then
      begin
        Application.MessageBox(PChar(RMLoadStr(SRMFError)), PChar(RMLoadStr(SError)),
          mb_Ok + mb_IconError);
        Exit;
      end;
    
      if FReportVersion > 51 then
      begin
        RMReadWord(aStream); // HVersion
        lPos := RMReadInt32(aStream);
      end
      else
        lPos := 0;
    
      ReportInfo.Title := RMReadString(aStream);
      ReportInfo.Author := RMReadString(aStream);
      ReportInfo.Company := RMReadString(aStream);
      ReportInfo.CopyRight := RMReadString(aStream);
      ReportInfo.Comment := RMReadString(aStream);
      FColorPrint := RMReadBoolean(aStream);
      FmmPrintOffsetTop := RMReadInt32(aStream);
      FmmPrintOffsetLeft := RMReadInt32(aStream);
      FmmPrintOffsetTop := 0;//这里先读取后 又自己清0了
      FmmPrintOffsetLeft := 0;
      FPageCompositeMode := TRMCompositeMode(RMReadByte(aStream));
      PrintBackGroundPicture := RMReadBoolean(aStream);
      DoublePass := RMReadBoolean(aStream);
      PrinterName := RMReadString(aStream);
      if FReportVersion >= 65 then
        RMReadWideMemo(aStream, FScript)
      else
        FScript.Text := RMReadAnsiMemo(aStream);
    
      if FReportVersion > 51 then
      begin
        FReportFlags := RMReadWord(aStream);
        if FReportVersion >= 57 then
          ConvertNulls := RMReadBoolean(aStream);
    
        aStream.Position := lPos;
      end
      else
      begin
        FReportFlags := 0;
        AutoSetPageLength := False;
      end;
    
      try
        Pages.LoadFromStream(FReportVersion, aStream);
      except
        on E: EClassNotFound do
          Application.MessageBox(PChar('Opened report contains the following non-plugged components:' +
            #13 + E.Message + 'Use appropriate component from RM component palette'), PChar(RMLoadStr(SError)),
            mb_Ok + mb_IconError);
      else
      end;
    
      FSaveReportOptions.LoadReportSetting(Self, '', False);//读取报表文件外的设置
      if FReportVersion < 64 then
        FPageCompositeMode := rmReportPerReport;
    end;
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  • 原文地址:https://www.cnblogs.com/CodeGear/p/4922604.html
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