Monkeybread Software - DynaPDF Manual

DynaPDF Manual - Page 607

Function Reference

Page 607 of 883

LoadLayerConfig

Syntax:

LBOOL pdfLoadLayerConfig(

const PPDF* IPDF, // Instance pointer

SI32 Index)

// See description

The function loads the specified layer configuration. A PDF file that contains layers (Optional

Content Groups in PDF syntax) contains usually at least a default configuration dictionary. This

configuration is loaded by default when the visibility state of a layer or optional content group must

be determined, e.g. when rendering a page.

Use this function to load another configuration if available. To determine the number of available

configurations call GetLayerConfigCount().

The parameter Index can be one of the following:

•

-1: Load the default configuration.

•

-2: If a configuration was already loaded, leave it unchanged. Load

the default configuration otherwise.

•

0..Count -1: Load the specified configuration.

Return values:

If the function succeeds the return value is 1. If the function fails the return value is 0.

LoadSVG

Syntax:

ISVG* pdfLoadSVG(

const PPDF* IPDF,

// Instance pointer

const char* FileName) // Path of the SVG file

The function opens the specified SVG file and returns the SVG parser instance on success.

Notice:

The caller is responsible to delete the parser instance when finish with DeleteSVG(). This pointer

is not maintained by DynaPDF. That means if you forget to delete the parser instance a memory

leak will occur.

The PHP extension is an exception in this regard. The PHP extension makes sure that the

instance will be deleted when it becomes out of scope.

Note also that the SVG parser instance contains a reference of the PDF instance and this instance

pointer cannot be changed at runtime. The PDF instance is used to output errors and warning to

the error log.