ReadFile 总返回失败异常代码1784

ReadFile 总返回失败错误代码1784
hDevHandle := CreateFile( PChar(strP), GENERIC_READ or GENERIC_WRITE,
FILE_SHARE_READ or FILE_SHARE_WRITE, @SecurityAttributes, OPEN_EXISTING, 0, 0);



var
  PreparsedData:PHIDPPreparsedData;
  Success:Boolean ;
  Capabilities:THIDPCaps;
  INputReport: array [0..66] of CHAR;
  OutputReport: array [0..66] of CHAR;
  OutputReport1: array [0..66] of CHAR;
  bread,bWritten:DWORD;
  ii:Integer;
  strv:string;
  c:BYTE;
  strGet:string;
  iv:Integer;
begin
  II:=1;
  Success := HidD_GetPreparsedData(hDevHandle, PreparsedData);
  if Success then
  begin
  FillChar(OutputReport, Length(OutputReport), 0);
  FillChar(INputReport, Length(INputReport), 0);
  HidP_GetCaps(PreparsedData, Capabilities);
  Success := WriteFile( hDevHandle, OutputReport, 65, bWritten, 0);  
  if not Success then
  me1.Lines.Add( '写入失败')
  else
  BEGIN
  success:=ReadFile( hDevHandle, InputReport, 64,bWritten, 0);
bread:=GetLastError(); 写入成功后再读总返回失败 错误代码：1784
  me1.Lines.Add( '写入：' + strCode);
  END;
  end;

end;


[解决办法]
〖1784〗-提供给请求操作的用户缓冲区无效。