`pdfChangeFontEx`

Switch to a font handle and apply a new size and style in

Category	Font selection

Purpose — Switch to a font handle and apply a new size and style in one call.

Description — Switches first; if that succeeds, applies FontSize (via pdfChangeFontSize's logic) then Style (via pdfChangeFontStyle's logic — same bit-convention caveat applies to Style here as documented in the chapter-level warning, since Style: TFStyle on this entry point too).

Declarations

BOOL32 __stdcall pdfChangeFontEx(PPDF IPDF, int32_t Handle, double FontSize, TFStyle Style);

Delphi

function pdfChangeFontEx(const IPDF: PPDF; Handle: Integer; FontSize: Double; Style: TFStyle): LongBool; stdcall; external 'LumasPdf.dll';

Parameters

Parameter	Type	Description
`IPDF`	`PPDF`	Instance handle.
`Handle`	`Integer`	Target font handle.
`FontSize`	`Double`	New size; `<= 0` is silently ignored (previous size kept).
`Style`	`TFStyle`	Same bit-0=Bold/bit-1=Italic convention as `pdfChangeFontStyle` — see the chapter warning.

Return value — TRUE if Handle was valid; FALSE otherwise. (Once the handle switch succeeds, the size/style applications cannot themselves cause this call to report failure.)

See also — pdfChangeFont

C# (P/Invoke)

wrappers/dotnet/LumasPdf.cs

[return: MarshalAs(UnmanagedType.Bool)]

Area

Fonts