sdlIOvprintf function iostream

int sdlIOvprintf(Pointer<SdlIoStream> context, String? fmt)

Print to an SDL_IOStream data stream.

This function does formatted printing to the stream.

\param context a pointer to an SDL_IOStream structure. \param fmt a printf() style format string. \param ap a variable argument list. \returns the number of bytes written or 0 on failure; call SDL_GetError() for more information.

\threadsafety Do not use the same SDL_IOStream from two threads at once.

\since This function is available since SDL 3.2.0.

\sa SDL_IOprintf \sa SDL_WriteIO

extern SDL_DECLSPEC size_t SDLCALL SDL_IOvprintf(SDL_IOStream *context, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(2)

Implementation

int sdlIOvprintf(Pointer<SdlIoStream> context, String? fmt) {
  final sdlIOvprintfLookupFunction = _libSdl
      .lookupFunction<
        Uint32 Function(Pointer<SdlIoStream> context, Pointer<Utf8> fmt),
        int Function(Pointer<SdlIoStream> context, Pointer<Utf8> fmt)
      >('SDL_IOvprintf');
  final fmtPointer = fmt != null ? fmt.toNativeUtf8() : nullptr;
  final result = sdlIOvprintfLookupFunction(context, fmtPointer);
  calloc.free(fmtPointer);
  return result;
}