ttfOpenFontIndexRw function

Pointer<TtfFont> ttfOpenFontIndexRw(
  1. Pointer<SdlRWops> src,
  2. int freesrc,
  3. int ptsize,
  4. int index,
)

Create a font from an SDL_RWops, using a specified face index.

Some .fon fonts will have several sizes embedded in the file, so the point size becomes the index of choosing which size. If the value is too high, the last indexed size will be the default.

If freesrc is non-zero, the RWops will be automatically closed once the font is closed. Otherwise you should close the RWops yourself after closing the font.

Some fonts have multiple "faces" included. The index specifies which face to use from the font file. Font files with only one face should specify zero for the index.

When done with the returned TTF_Font, use TTF_CloseFont() to dispose of it.

\param src an SDL_RWops to provide a font file's data. \param freesrc non-zero to close the RWops when the font is closed, zero to leave it open. \param ptsize point size to use for the newly-opened font. \param index index of the face in the font file. \returns a valid TTF_Font, or NULL on error.

\since This function is available since SDL_ttf 2.0.12.

\sa TTF_CloseFont

extern DECLSPEC TTF_Font * SDLCALL TTF_OpenFontIndexRW(SDL_RWops *src, int freesrc, int ptsize, long index)

Implementation

Pointer<TtfFont> ttfOpenFontIndexRw(
    Pointer<SdlRWops> src, int freesrc, int ptsize, int index) {
  final ttfOpenFontIndexRwLookupFunction = libSdl2Ttf.lookupFunction<
      Pointer<TtfFont> Function(
          Pointer<SdlRWops> src, Int32 freesrc, Int32 ptsize, Int32 index),
      Pointer<TtfFont> Function(Pointer<SdlRWops> src, int freesrc, int ptsize,
          int index)>('TTF_OpenFontIndexRW');
  return ttfOpenFontIndexRwLookupFunction(src, freesrc, ptsize, index);
}