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DARenderPageToStream

Direct access functionality, Rendering and printing

Description

This function is only available in the Delphi edition.

It renders the specified page from the specified document to an image and returns the image data in the supplied TStream.

By default rendering uses the GDI+ system which is available by default in Windows XP and later.

Option 10, TIFF (G4) output, is only available on Windows Vista and Windows Server 2008 and later.

It is also possible to render using Cairo, use the SetCairoFileName and SelectRenderer functions.

Syntax

Delphi

function TDebenuPDFLibrary1511.DARenderPageToStream(FileHandle, PageRef, 
  Options: Integer; DPI: Double; Target: TStream): Integer;

ActiveX

This function is not available in the ActiveX edition

DLL

This function is not available in the DLL edition

Parameters

FileHandle A handle returned by the DAOpenFile, DAOpenFileReadOnly or DAOpenFromStream functions
PageRef A page reference returned by the DAFindPage or DANewPage functions
Options 0 = BMP output
1 = JPEG output
2 = WMF output
3 = EMF output
4 = EPS output
5 = PNG output
6 = GIF output
7 = TIFF output
8 = EMF+ output
9 = HTML5 output
10 = G4 TIFF output
DPI The DPI to use when rendering the page. Values over 300 will cause excessive memory usage.
Target The stream to place the rendered page into

Return values

0 The page could not be rendered. Check that the FileHandle and PageRef parameters contain valid values.
1 The page was rendered and the image data was put into the stream

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