THPDFPage.SetEmbeddedGlyphFont Method

Selects validated caller-owned font bytes without installing or resolving the face through GDI

Declaration

function SetEmbeddedGlyphFont(
  const FontIdentity: AnsiString;
  const FontData: TBytes;
  FontCollectionIndex: Integer;
  ASize: Single): boolean;

FontIdentity is a stable document-local cache identity for the supplied program
FontData contains a TrueType, OpenType, or TrueType Collection program
FontCollectionIndex selects a zero-based TTC member and must be zero for a standalone font
ASize is the positive font size in page units

Validates the sfnt tables, glyph count, units per em, cmap, metrics, and finite size before changing the current font
Rejects restricted and bitmap-only embedding permissions and honors the no-subsetting bit
Builds cached BMP and supplementary-plane cmap lookups plus per-glyph advances
Returns false without selecting the font when validation fails