imos 学习笔记五 抓拍 c#

抓拍

/// <summary>

/// 抓拍

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void tsButtonSnatch_Click(object sender, EventArgs e)

{

//检查用户登录状态

if (null == m_player.m_mainForm)

{

MessageBox.Show("请先登录！");

return;

}

//当前用户控制面板

selectedSubCtrl = m_player.m_mainForm.g_userCtrlList[m_player.m_mainForm.tabControl1.SelectedIndex];

if(null != selectedSubCtrl)

{

//当前播放通道

selectedPanel = selectedSubCtrl.imosPlayer.m_playerUnit[PlayerPanel.SelectedIndex];

}

//检查图片保存地址，默认为snatch

UInt32 ulRet = 0;

String picPath = LocalConfig.picSnatchLoc;

if (false == Directory.Exists(LocalConfig.picSnatchLoc))

{

Directory.CreateDirectory(LocalConfig.picSnatchLoc);

}

if(false ==LocalConfig.picSnatchLoc.EndsWith("\\"))

{

//这里要给路径后添加"\"

picPath = LocalConfig.picSnatchLoc.Insert(LocalConfig.picSnatchLoc.Length, "\\");

}

if(null != selectedPanel.channelCode)

{

//单次实时抓图

ulRet = IMOSSDK.IMOS_SnatchOnce(ref selectedSubCtrl.sdkManager.stLoginInfo.stUserLoginIDInfo,//用户登录标识

Encoding.Default.GetBytes(selectedPanel.channelCode),//频道号

Encoding.Default.GetBytes(picPath),//图像文件名

LocalConfig.picFormat);//图像格式

}

if (0 != ulRet)

{

log.Info("抓图失败，错误码为：" + ulRet.ToString());

MessageBox.Show("抓图失败，错误码为：" + ulRet.ToString());

}else

{

MessageBox.Show("抓图成功！图片保存在" + LocalConfig.picSnatchLoc);

}

}

调用sdk中的方法

/// <summary>

/// 单次实时抓拍

/// 图像文件名全部由用户指定

/// </summary>

/// <param name="stUserLoginInfo">用户标识信息</param>

/// <param name="szChannelCode">播放通道号</param>

/// <param name="szFileName">要保存的图像文件名</param>

/// <param name="ulPicFormat">图像格式</param>

/// <returns></returns>

[DllImport("xp_frame.dll", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.StdCall)]

public static extern UInt32 IMOS_SnatchOnceEx(ref USER_LOGIN_ID_INFO_S stUserLoginInfo, byte[] szChannelCode, byte[] szFileName, UInt32 ulPicFormat);

/// <summary>

/// 启动连续实时抓拍

/// </summary>

/// <param name="stUserLoginInfo">用户登录标识</param>

/// <param name="szChannelCode">播放通道号</param>

/// <param name="szFileName">图像文件存放路径,包括文件名(不带扩展名)</param>

/// <param name="ulPicFormat">图像文件的格式</param>

/// <param name="ulInterval">抓拍间隔,时间为毫秒</param>

/// <returns></returns>

[DllImport("xp_frame.dll", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.StdCall)]

public static extern UInt32 IMOS_StartSnatchSeries(ref USER_LOGIN_ID_INFO_S stUserLoginInfo, byte[] szChannelCode, byte[] szFileName, UInt32 ulPicFormat, UInt32 ulInterval);

/// <summary>

/// 停止连续实时抓拍

/// </summary>

/// <param name="stUserLoginInfo">用户标识</param>

/// <param name="szChannelCode">播放通道编码</param>

/// <returns></returns>

[DllImport("xp_frame.dll", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.StdCall)]

public static extern UInt32 IMOS_StopSnatchSeries(ref USER_LOGIN_ID_INFO_S stUserLoginInfo, byte[] szChannelCode);