Monkeybread Software - DynaPDF Manual

DynaPDF Manual - Page 54

Content parsing & editing

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DeleteOperator

Syntax:

LBOOL psrDeleteOperator(

const IPSR* Ctx, // Parser instance pointer

UI32 Index)

// Operator index

The function deletes an operator from the array of operators returned by ParsePage().

Please note that there is no error checking. Deleting operators can lead to errors, e.g. an operator

like BeginText has the counterpart EndText, as well as additional operators inside this block

which might not be allowed to occur standalone.

Return values:

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

DeleteOperatorInObject

Syntax:

LBOOL psrDeleteOperatorInObject(

const IPSR* Ctx, // Parser instance pointer

IPDFObj* ObjPtr, // Object pointer

UI32 Index)

// Operator index

The function deletes an operator of an object that has its own content stream like templates,

transparency groups, or patterns. The object pointer is provided in the structure of the

corresponding operator (see TDrawTemplateOP, TDrawGroupOP, or TSetPatternOP). This is

the member Template or Pattern of these structures.

For all other operators use DeleteOperator() instead.

Please note that there is no error checking. Deleting operators can lead to errors, e.g. an operator

like BeginText has the counterpart EndText, as well as additional operators inside this block

which might not be allowed to occur standalone.

Return values:

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

DeleteParserContext

Syntax:

void psrDeleteParserContext(

IPSR** Ctx) // Parser instance pointer

The function deletes a parser context that was created by CreateParserContext() and sets the

variable Ctx to NULL. If the parameter Ctx is NULL, the function returns immediately without

error.