pdfExecuteJavaScript

const char* __stdcall pdfExecuteJavaScriptA(PPDF IPDF, const char* Script, const char* FieldsJSON);
const char* __stdcall pdfGetJSConsole(PPDF IPDF);

function pdfExecuteJavaScriptA(const IPDF: PPDF; const Script, FieldsJSON: PAnsiChar): PAnsiChar; stdcall;
function pdfGetJSConsole(const IPDF: PPDF): PAnsiChar; stdcall;

Purpose. Execute a JavaScript snippet against an embedded, real ECMAScript engine with an Acrobat-compatible host object model — per an inline source comment, "Lumas extension: real JavaScript execution (BESEN ECMAScript engine + Acrobat host)" — and read back the accumulated console output (console.log-style diagnostics) from the most recent execution.

Description. FieldsJSON supplies a JSON-encoded initial field-value context the script can read/manipulate (this.getField(...)-style Acrobat API calls resolve against it). This is real script execution, not a stub — a notable capability beyond the classic API's typical scope, called out explicitly as a "Lumas extension."

Parameters.

Return value. pdfExecuteJavaScriptA: pointer to the script's result (transient buffer), or nil if IPDF is invalid. pdfGetJSConsole: pointer to the accumulated console output; nil if IPDF invalid.

See also. pdfGetJSFields (not covered in this volume).

C# (P/Invoke)

public static extern IntPtr pdfExecuteJavaScriptA(IntPtr IPDF, [MarshalAs(UnmanagedType.LPStr)] string Script, [MarshalAs(UnmanagedType.LPStr)] string FieldsJSON);