Monkeybread Software - DynaPDF Manual

DynaPDF Manual - Page 53

Content parsing & editing

Page 53 of 860

ClearSelection

Syntax:

void psrClearSelection(

const IPSR* Ctx) // Parser instance pointer

The function clears the selection. This function is declared for future use. FindText() clears the

text selection automatically before it is executed. There is currently no need to clear the selection

manually.

CreateParserContext

Syntax:

IPSR* psrCreateParserContext(

const PPDF* IPDF,

// Instance pointer

TOptimizeFlags Flags,

// Optimization flags

struct TOptimizeParams* Parms) // Optional parameters

The function creates a parser context that can be used to edit and extract text, or do delete

arbitrary operators of a page.

The content parser is used by Optimize() too. Therefore, the same flags and optimization

parameters are supported. Please have a look at Optimize() for a description of the available

flags and parameters. The parameter Parms can be set to NULL and Flags to ofDefault if nothing

special should be achieved. Parms is considered only if the member StructSize is set to

sizeof(TOptimizeParams).

The function makes a copy of the structure if set. This makes sure that no error occurs when the

structure becomes out of scope.

Remarks:

To determine how the parser can be used, have a look at the example edit_text. The example is

available for C/C++, C#, Delphi, VB .Net, and VB 6.

The parser context must be deleted with DeleteParserContext() when no longer needed.

Return values:

If the function succeeds the return value is a pointer of the parser context. If the function fails

the return value is NULL.