Rave Reports Merging - delphi

Question

I have multiple RVSystems set up each with there own unit to print one report each. I have a program where the user can select from a list of which ones they want to see.
The problem I'm trying to solve is how to combine the ones the user selects so they don't have to preview/print for each one they choose. I don't want to use a RVProject because they are all code based and I am not using a .rav file at all. Thanks!!!
I have looked at the Nevrona tip #41 which is supposed to address but it uses a RVProject with a .rav file to access the separate reports.
Nick

Answer 1

WPCubed wPDF can print multiple RAVE report into one PDF file:
http://www.wpcubed.com/manuals/wpdf/index.html?ravereport.htm
Example 2:
Render multiple NDR files directly to the PDF file 'c:\rave.pdf'. It uses an open dialog to let you choose the files.
procedure TForm1.Button1Click(Sender: TObject);
var
OpenDialog: TOpenDialog;
RvRenderWPDF: TRvRenderWPDF;
WPPDFPrinter: TWPPDFPrinter;
FileStream: TFileStream;
output: string;
i: Integer;
begin
OpenDialog := TOpenDialog.Create(Self);
OpenDialog.Options := [ofAllowMultiSelect];
RvRenderWPDF := TRvRenderWPDF.Create(Self);
WPPDFPrinter := TWPPDFPrinter.Create(Self);
try
OpenDialog.Filter := 'NDF Files|*.NDR';
RvRenderWPDF.PDFPrinter := WPPDFPrinter;
RvRenderWPDF.Active := TRUE;
WPPDFPrinter.AutoLaunch := TRUE;
WPPDFPrinter.CompressStreamMethod := wpCompressFastFlate;
if OpenDialog.Execute then
begin
output := 'dummy';
WPPDFPrinter.Filename := 'c:\rave.pdf';
WPPDFPrinter.BeginDoc;
try
for i := 0 to OpenDialog.Files.Count - 1 do
begin
FileStream := TFileStream.Create(OpenDialog.Files[i], fmOpenRead);
try
RvRenderWPDF.PrintRender(FileStream, output);
finally
FileStream.Free;
end;
end;
finally
WPPDFPrinter.EndDoc;
end;
end;
finally
OpenDialog.Free;
RvRenderWPDF.Free;
WPPDFPrinter.Free;
end;
end;
Also maybe You can use Gnostice eDocEngine to merge Rave Reports:
http://www.gnostice.com/nl_article.asp?id=247&t=Export_From_Rave_Reports_To_PDF_And_Other_Formats
Programmatic Export From Rave Report Snapshot File
In this example, eDocEngine will be used to export a Rave Reports report from an NDR (Rave Report snapshot) file.
Open the IDE and create a VCL forms application.
Drop three Rave Reports export interface components (TgtRaveExportInterface) on the form.
Drop a PDF engine (TgtPDFEngine), RTF engine (TgtRTFEngine) and XHTML engine (TgtXHTMLEngine) components on the form.
Add a button to the form and set this procedure for its click event handler
procedure TForm5.Button2Click(Sender: TObject);
begin
// Set output engines for the report export components
gtRaveExportInterface1.Engine := gtPDFEngine1;
gtRaveExportInterface2.Engine := gtRTFEngine1;
gtRaveExportInterface3.Engine := gtXHTMLEngine1;
// Disable output preferences dialog boxes
gtPDFEngine1.Preferences.ShowSetupDialog := false;
gtRTFEngine1.Preferences.ShowSetupDialog := false;
gtXHTMLEngine1.Preferences.ShowSetupDialog := false;
// Set output file name of the engines
gtPDFEngine1.FileName := 'eDoc_Rave_Demo.pdf';
gtRTFEngine1.FileName := 'eDoc_Rave_Demo.rtf';
gtXHTMLEngine1.FileName := 'eDoc_Rave_Demo.html';
// Export a Rave Reports snapshot file to PDF, RTF and XHTML
gtRaveExportInterface1.RenderDocument('eDoc_Rave.ndr');
gtRaveExportInterface2.RenderDocument('eDoc_Rave.ndr');
gtRaveExportInterface3.RenderDocument('eDoc_Rave.ndr');
end;