`pdfWriteAngleText`

Draw a single straight line of text rotated by Angle around

Category	Text output
Availability	Partial — `Radius`/`YOrigin` accepted but completely unused; weaker Unicode support (see chapter table)

Purpose — Draw a single straight line of text rotated by Angle around (PosX, PosY).

Description — compatibility shim. The exported signature includes Radius and YOrigin — parameters whose names suggest text placed along a circular arc — but the wrapper's implementation calls the internal writer with only (PosX, PosY, Angle, Text); Radius and YOrigin are never read anywhere in the call chain. This function always draws straight (non-curved) rotated text at the given point, regardless of what you pass for Radius/YOrigin. For actual arc (curved-baseline) text, see pdfDrawTextArc (a different, separate API, not this one). Font-kind dispatch: TrueType → Identity-H GIDs via WriteAngleTextBlockGID; everything else (including CID-predefined fonts, which get no special-case here unlike pdfWriteText) → raw-byte WriteAngleTextBlock. The non-TrueType W path encodes via CP_ACP (see the chapter-level table), not the WinAnsi-safe path.

Declarations

BOOL32 __stdcall pdfWriteAngleTextA(PPDF IPDF, const char* AText, double Angle, double PosX, double PosY, double Radius, double YOrigin);
BOOL32 __stdcall pdfWriteAngleTextW(PPDF IPDF, const wchar_t* AText, double Angle, double PosX, double PosY, double Radius, double YOrigin);

Delphi

function pdfWriteAngleTextA(const IPDF: PPDF; const AText: PAnsiChar; Angle, PosX, PosY, Radius, YOrigin: Double): LongBool; stdcall; external 'LumasPdf.dll';
function pdfWriteAngleTextW(const IPDF: PPDF; const AText: PWideChar; Angle, PosX, PosY, Radius, YOrigin: Double): LongBool; stdcall; external 'LumasPdf.dll';

Parameters

Parameter	Type	Description
`IPDF`	`PPDF`	Instance handle with an open page and font.
`AText`	string	Text to draw.
`Angle`	`Double`	Rotation in degrees, counter-clockwise from horizontal.
`PosX`, `PosY`	`Double`	Rotation pivot / text origin.
`Radius`	`Double`	Accepted but ignored — see Description.
`YOrigin`	`Double`	Accepted but ignored — see Description.

Return value — TRUE on success; FALSE on a missing precondition or empty text.

Remarks — After a successful call, FLastTextPosX/Y are set to the starting PosX/PosY — unlike pdfWriteText, which reports the end of the run. This is a second, independent inconsistency between the two writers beyond the encoding difference.

See also — pdfDrawTextArc (separate API for true curved-baseline text)

C# (P/Invoke)

wrappers/dotnet/LumasPdf.cs

[return: MarshalAs(UnmanagedType.Bool)]

Area

Text