ReadBlock property

Pointer<NativeFunction<FPDF_RESULT Function(Pointer<Void> clientData, FPDF_DWORD offset, Pointer<Void> buffer, FPDF_DWORD size)>> ReadBlock

Callback function to read data from the current file stream.

Parameters: clientData - Pointer to user-defined data. offset - Offset position starts from the beginning of file stream. This parameter indicates reading position. buffer - Memory buffer to store data which are read from file stream. This parameter should not be NULL. size - Size of data which should be read from file stream, in bytes. The buffer indicated by |buffer| must be large enough to store specified data. Returns: 0 for success, other value for failure.

Implementation

external ffi.Pointer<
  ffi.NativeFunction<
    FPDF_RESULT Function(
      ffi.Pointer<ffi.Void> clientData,
      FPDF_DWORD offset,
      ffi.Pointer<ffi.Void> buffer,
      FPDF_DWORD size,
    )
  >
>
ReadBlock;