API referenceImport & Output APIs

pdfHaveOpenDoc

Test whether an output document is open on the instance

Purpose — Test whether an output document is open on the instance (i.e. pdfCreateNewPDF…/pdfOpenOutputFile succeeded and pdfCloseFile has not yet run).

C
BOOL32 __stdcall pdfHaveOpenDoc(PPDF IPDF);
Delphi
function pdfHaveOpenDoc(const IPDF: PPDF): LongBool; stdcall; external 'LumasPdf.dll';

Return valueTRUE/FALSE; FALSE also for an invalid handle. Note this reflects the output document, not the import source.

C# (P/Invoke)

wrappers/dotnet/LumasPdf.cs
[return: MarshalAs(UnmanagedType.Bool)]
Area
Import & Output APIs
Category

Core

Exported names

pdfHaveOpenDoc

String variants

The …A form takes UTF-8, …W takes UTF-16; a bare name aliases the ANSI form.

See working code

Worked examples — complete programs in ten languages.