`pdfCopyChoiceValues`

Copy a Choice-type form field's (/Ch, listbox/combobox)

BOOL32 __stdcall pdfCopyChoiceValues(PPDF IPDF, uint32_t Source, uint32_t Dest, BOOL32 Share);

Delphi

function pdfCopyChoiceValues(const IPDF: PPDF; Source, Dest: Cardinal; Share: LongBool): LongBool; stdcall;

Purpose. Copy a Choice-type form field's (/Ch, listbox/combobox) /Opt export-value list from one field to another — useful for keeping several fields with identical option lists in sync without redefining the list per field.

Parameters.

Parameter	Description
`IPDF`	Document handle.
`Source`, `Dest`	Field handles.
`Share`	Whether the two fields should reference the shared `/Opt` array object (`True`) or receive independent copies (`False`) — not independently re-verified in this chapter beyond confirming the parameter reaches `CopyChoiceValues`.

Return value. True if both fields resolve and are Choice-type; False otherwise.

C# (P/Invoke)

wrappers/dotnet/LumasPdf.cs

[return: MarshalAs(UnmanagedType.Bool)]

Area

Core SDK