DARenderPageToVariant
Direct access functionality, Rendering and printing
Description
Renders the specified page from the specified document to an image and returns the image data as a byte array variant
By default rendering uses the GDI+ system which is available 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
ActiveX
Function PDFlib::DARenderPageToVariant(FileHandle As Long, PageRef As Long, Options As Long, DPI As Double) As VariantParameters
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