`pdfSetAnnotSubject`

Set one of several text fields on an annotation

BOOL32 __stdcall pdfSetAnnotStringA(PPDF IPDF, uint32_t Handle, int32_t StringType, const char* Value);
BOOL32 __stdcall pdfSetAnnotStringW(PPDF IPDF, uint32_t Handle, int32_t StringType, const wchar_t* Value);
BOOL32 __stdcall pdfSetAnnotSubjectA(PPDF IPDF, uint32_t Handle, const char* Value);
BOOL32 __stdcall pdfSetAnnotSubjectW(PPDF IPDF, uint32_t Handle, const wchar_t* Value);

Delphi

function pdfSetAnnotStringA(const IPDF: PPDF; Handle: Cardinal; StringType: Integer; const Value: PAnsiChar): LongBool; stdcall;
function pdfSetAnnotStringW(const IPDF: PPDF; Handle: Cardinal; StringType: Integer; const Value: PWideChar): LongBool; stdcall;
function pdfSetAnnotSubjectA(const IPDF: PPDF; Handle: Cardinal; const Value: PAnsiChar): LongBool; stdcall;
function pdfSetAnnotSubjectW(const IPDF: PPDF; Handle: Cardinal; const Value: PWideChar): LongBool; stdcall;

Purpose. Set one of several text fields on an annotation (pdfSetAnnotString's StringType selects among Contents/Author/etc — a generic multi-field setter), or specifically the /Subject field (pdfSetAnnotSubject, a dedicated convenience for that one field).

Parameters.

Parameter	Description
`IPDF`	Document handle.
`Handle`	Document-wide annotation handle.
`StringType`	(SetAnnotString only) Which text field to set.
`Value`	The new string.

Return value. True if Handle resolves; False otherwise.

C# (P/Invoke)

wrappers/dotnet/LumasPdf.cs

[return: MarshalAs(UnmanagedType.Bool)]

Area

Annotations