protected override bool PrepClose()
{
if (PlayHandle > -1)
{
if (HCNetSDKWrap.NET_DVR_StopPlayBack(PlayHandle))
{
PlayHandle = -1;
PlayPort = -1;
return(true);
}
}
return(false);
}
protected override bool PrepOpen(object target)
{
if (PlayHandle < 0)
{
if (mType == 1)
{
PlayHandle = HCNetSDKWrap.NET_DVR_PlayBackByName(DVRDevice.UserID, target.ToString(), HWnd);
}
else if (mType == 2)
{
PlayHandle = HCNetSDKWrap.NET_DVR_PlayBackByTime(DVRDevice.UserID, (Int32)target, ref mStartTime, ref mStopTime, HWnd);
}
else
{
throw new Exception("回放类型不支持！");
}
if (PlayHandle > -1)
{
PlayPort = HCNetSDKWrap.NET_DVR_GetPlayBackPlayerIndex(PlayHandle);
if (PlayPort > -1)
{
mTryCount = 0;
if (ImageDrawer.DrawFun != null)
{
HCNetSDKWrap.PlayM4_RigisterDrawFun(PlayPort, ImageDrawer.DrawFun, DVRDevice.UserID);
}
return(true);
}
else if (HCNetSDKWrap.NET_DVR_StopPlayBack(PlayHandle))
{
PlayHandle = -1;
CLocalSystem.WriteErrorLog(string.Format("HKDVRBackPlayer({0}) 播放时获取播放器句柄失败：{1}", this.Name, PlayPort));
}
}
else
{
int nErr = HCNetSDKWrap.NET_DVR_GetLastError();
CLocalSystem.WriteErrorLog(string.Format("HKDVRBackPlayer({0}) 播放失败：{1}", this.Name, nErr));
PlayStatus = PlayState.Error;
}
}
return(false);
}
