`pdfSetOCGConfigState`

Set a single OCG's default visibility within a specific

BOOL32 __stdcall pdfSetOCGConfigState(PPDF IPDF, int32_t ConfigHandle, int32_t OCGHandle, BOOL32 Visible);

Delphi

function pdfSetOCGConfigState(const IPDF: PPDF; ConfigHandle, OCGHandle: Integer; Visible: LongBool): LongBool; stdcall;

Purpose. Set a single OCG's default visibility within a specific named layer configuration (a pdfCreateOCLayerConfig/pdfLoadLayerConfig alternate /D-array config, Optional Content (OCG) Layers) — as opposed to the document's base default configuration.

Description. Real and validated: both ConfigHandle and OCGHandle must resolve to existing entries (1-based, bounds-checked against FCfgCount/FOCGCount); on success, records Visible (and its logical inverse) into that specific config's per-OCG ON/OFF membership arrays (FCfgOn/FCfgOff), lazily growing them to the current OCG count if needed. Distinct from pdfSetOCGState below, which affects the document-wide base configuration, not an alternate named one.

Parameters.

Parameter	Description
`IPDF`	Document handle.
`ConfigHandle`	Handle of an existing alternate layer configuration.
`OCGHandle`	Handle of an existing OCG.
`Visible`	The default visibility to record for this OCG within that specific configuration.

Return value. True if both handles resolved; False otherwise.

See also. pdfSetOCGState, pdfCreateOCLayerConfig.

C# (P/Invoke)

wrappers/dotnet/LumasPdf.cs

[return: MarshalAs(UnmanagedType.Bool)]

Area

Graphics