海康威视 MP4_ServerStart 启动服务端False！ ( 积分: 50 )

定义结构如下：
type SERVER_VIDEOINFO=packed record
m_datatype: array[1..64] of BYTE;
m_channum:BYTE;
m_waittimeWORD;
m_bufnumWORD;
end;
PSERVER_VIDEOINFO=^SERVER_VIDEOINFO;
VideoInfo=SERVER_VIDEOINFO;
声明：
function MP4_ServerStart(pServerVideoInfo:VideoInfo):Boolean;stdcall;external 'HikServer.dll';
调用：
procedure TFrmMain.btnStartServerClick(Sender: TObject);
var
VideoInfo:SERVER_VIDEOINFO;
begin
if MP4_ServerStart(VideoInfo) then
ShowMessage('Starting Server is Successfull!')
else
ShowMessage('Starting Server is Fail!');
end;
请问是什么原因！请各位大帮帮忙！
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