LumasAPI reference › Import & Output APIs
pdfSetXFAStream
Replace the bytes of packet Index (0-based); the packet's name is kept.
Replace the bytes of packet Index (0-based); the packet's name is kept. A NULL/empty buffer empties the packet.
C
BOOL32 __stdcall pdfSetXFAStream(PPDF IPDF, uint32_t Index, void* Buffer, uint32_t BufSize);Return value — TRUE on success; FALSE for an out-of-range index.
Private data blobs
C# (P/Invoke)
wrappers/dotnet/LumasPdf.cs
[return: MarshalAs(UnmanagedType.Bool)]Area
Import & Output APIs
Category
Setters
Exported names
pdfSetXFAStream
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.