程序特性

Veyon提供了一系列特性以帮助您控制和访问计算机。所有可用特性都可以通过工具栏里的按钮或者个人计算机的上下文菜单来访问。

当您将鼠标划过工具栏中的单个按钮时,一个带有简短帮助文本的工具提示将会显示,除非您禁用了工具提示。按下按钮将在所有显示的计算机上激活您想要的功能。

在个人计算机上使用功能

如果您只想在单个计算机上激活功能,右击监控视图中的计算机并从上下文菜单中选择想要的功能。上下文菜单的条目将根据活动的功能动态显示。

../_images/ContextMenu.png

您也可以使用鼠标画出矩形选择框来选定您想要的多台计算机。

../_images/select-computers.png

或者,您可以按下 Ctrl 键然后使用鼠标点击来逐个选择多台计算机。

监控模式

默认情况下Veyon运行在监控模式下。在此模式中您可以看到所有计算机的概览并通过缩略图查看它们的屏幕内容。屏幕内容会近实时更新,所以您可以监控选择地点的所有活动。

如果没有到一个计算机的连接,则程序将会显示一个计算机图标,而不是屏幕内容。在程序启动后,图标开始会是灰色的。当程序检测到计算机不可达或访问被拒绝时,图标会变成红色。

在下一节中介绍的一些功能特性会将远程计算机切换到不同的模式。您可以通过重新激活监控模式来退出那些模式。

../_images/FeatureMonitoringMode.png

演示模式

You can use the demonstration mode (demo mode) to start a presentation. In this mode, the content of your or a student's screen is broadcasted to all computers and displayed in real time. You can choose between a full screen and a window demo.

在全屏演示期间,您的屏幕内容将在远程计算机上全屏显示。 在此模式下,已登录的用户无法将其计算机用于其他任务,因为所有输入设备均被锁定。 这样,您将获得学生的全部关注。

相比之下,窗口演示允许用户在演示窗口和自己的应用程序之间切换。 例如,课程参与者可以并排布置窗户,并亲自尝试演示的步骤。 因此,输入设备未锁定在此模式下。

In order to start a demonstration, you have to open the demo menu by pressing the Demo:

../_images/DemoMenu.png

Now click the desired item in the menu. If you want to share a student's screen, make sure to select it before so the program knows which screen to broadcast.

In case your computer is equipped with multiple screens, you can choose to only broadcast one of the screens. To do this, click the corresponding screen item in the demo menu before sharing your screen.

如果您想再次退出演示模式,只需再次按下按钮或单击 监视 按钮即可全局切换回监视模式。 上下文菜单还可以用于停止单台计算机上的演示模式。

锁定屏幕

引起学生注意的另一种方法是使用屏幕锁定功能。 与全屏演示过程一样,学生计算机上的所有输入设备均被锁定。 这样,学生将无法再使用计算机。 此外,还会显示一个锁定符号,以防止因打开的应用程序而引起的干扰。

按 :guilabel:`锁定`按钮锁定所有显示的计算机:

../_images/FeatureScreenLock.png

如果您想再次退出演示模式,只需再次按下按钮或单击 监视 按钮即可全局切换回监视模式。

If only individual computers are to be locked, you can select them as described in section 在个人计算机上使用功能 and select the screen lock feature in the context menu. The screen lock can then be deactivated either by selecting Unlock or switching back to Monitoring mode. The screen lock can also be activated globally at first and later deactivated for individual computers via the context menu.

注解

由于大多数操作系统的安全性限制,如果没有用户登录,则无法显示锁定屏幕。 输入设备仍处于锁定状态,因此无法进行用户登录。

远程访问

菜单栏*远程访问*中,由:guilabel:`远程浏览`和:guilabel:`远程控制`两部分组成。在两种模式下,远程计算机的屏幕都会在独立的窗口中显示。与主窗口中的控制模式不同,您可以清除看到远程计算机上的活动或是介入其中。

可以通过不同方式激活功能。 根据系统配置,通常通过双击计算机来启动两个功能之一。 或者,您可以单击鼠标右键以打开上下文菜单并选择所需的功能。

如果要访问未出现在监视器视图中的计算机,请使用相应的工具栏按钮:

../_images/FeatureRemoteAccess.png

按下此按钮后,将打开一个对话框,询问要访问的计算机的主机名:

../_images/RemoteAccessHostDialog.png

然后一个带有远程访问视图的新窗口将会打开:

../_images/RemoteAccessWindow.png

然后在几秒钟内显示远程屏幕并实时更新。 在窗口顶部,您将看到一个工具栏,其按钮类似于主应用程序。 建立连接后,工具栏会自动消失几秒钟。 您可以随时通过将鼠标指针移到屏幕顶部来再次显示它。

You can also change the access mode at any time during a running remote access session. All you need to do is click on the Remote control or View only button. The button does not show the current access mode, but the access mode that is changed when pressed.

As soon as you have entered the Remote control mode, your keystrokes, mouse movements and clicks are transmitted to the remote computer so that you can operate it as usual. However, depending on the operating system, certain special keys or key shortcuts such as Ctrl+Alt+Del cannot be used directly. If you want to use these shortcuts, you can use the button Send shortcut. Clicking this button opens a menu where you can select the desired shortcut:

../_images/RemoteAccessShortcutsMenu.png

If the menu was opened accidentally, it can also be closed again without triggering an action by clicking the button again or pressing the Esc key.

If you want to switch to fullscreen mode, you can use the Fullscreen button. In full screen mode, the button label changes to Window. You can easily switch back to window mode by clicking on it again.

The Screenshot function captures the current screen content and saves it to a file that can be displayed later. More information regarding screenshots can be found in sections Screenshots panel and Screenshots.

With the button Exit the remote access window is closed.

打开、重新启动及关闭计算机

The features Power on, Reboot and Power down are helpful both for administrative purposes and for the preparation and follow-up of courses and exams. Using these functions, you can remotely power on, restart, or shut down computers. The corresponding buttons can be found in the toolbar:

../_images/FeaturePowerControl.png

单击适当的按钮打开,重新启动或关闭所有显示的计算机。 如果仅要将功能用于单个计算机,则可以选择相应的计算机,然后在上下文菜单中选择所需的项目。

Veyon 4.2 and newer provide additional power down options. These options can be selected from a menu which opens when clicking the Power down button:

../_images/PowerDownOptions.png

下列操作可用:

立即关机
计算机将立即关机,不会再有其他确认对话框。
安装更新并关机
如果操作系统支持,则在关闭过程中将安装所有可用的系统更新。 如果没有可用的更新,则将立即关闭相应计算机的电源。
用户确认后关机
使用此选项,将询问每个登录用户是否关闭相应的计算机。 如果没有用户登录到特定计算机,它将立即关闭电源。
超时后关机

选择此选项将打开一个对话框,您可以在其中设置关闭计算机电源的时间:

../_images/PowerDownTimeInputDialog.png

接受对话框后,所有计算机上都会显示一个倒计时窗口,告诉用户保存其工作并关闭所有应用程序。

注意

请注意,根据程序配置,计算机将在没有进一步确认对话框的情况下重新启动或关闭。 因此,请始终确保已登录的用户保存了所有打开的文档等,并在可能的情况下关闭了所有程序。 这样可以防止不必要的数据丢失。

注解

取决于网络的配置和单个计算机的系统设置,仅在某些技术条件下才能打开电源。 同时,打开电源时不会进行访问权限检查,因此您可以打开其他房间或位置的计算机。 因此,使用此功能时请注意所选的计算机。

登录用户

The Log in feature allows logging in a particular user on all computers remotely. A corresponding button in the toolbar is available for this purpose:

../_images/FeatureUserLogin.png

After pressing the button, a dialog window opens in which you can enter the username and password to log in:

../_images/UserLoginDialog.png

点击:guilabel:`OK`来以特定用户登录。

If you want to use this feature for individual computers only, you can select the respective computers and select the desired item in the context menu.

注解

This feature is only activated on computers on which no user is logged in. To ensure a consistent state on all computers consider using the 注销用户 feature beforehand.

提示

A typical use case for this feature can be to prepare a course by logging in all computers and start programs or open websites in advance.

注销用户

The Log off feature complements the possibilities described in the previous section to control basic computer states. A corresponding button in the toolbar is available for this purpose:

../_images/FeatureUserLogoff.png

激活此按钮可以注销所有显示的计算机上的所有用户。 如果仅要将此功能用于单独的计算机,则可以选择相应的计算机,然后在上下文菜单中选择所需的项目。

提示

A typical use case for this feature can be to end a course for all participants at the same time.

注意

Please note that the logged on users – depending on the program configuration – are logged off without further confirmation dialogs. Therefore, always make sure that the logged on users have saved all open documents etc. and closed all programs if possible. This prevents unwanted data loss.

发送消息

Another possibility for user interaction is to send a text message to individual or all course participants. The text message is displayed on the computers in the form of a message window. The Text message button is available for this purpose:

../_images/FeatureTextMessage.png

After pressing the button, a dialog window opens in which you can enter the message to be displayed:

../_images/TextMessageDialog.png

Click on OK to send the entered message.

If you want to use this feature for individual computers only, you can select the respective computers and select the desired item in the context menu.

运行程序

If a specific program is to be started on all computers, you can use the Run program feature in the toolbar. For this purpose, click on the button shown:

../_images/FeatureRunProgram.png

Depending on whether you added custom programs before or programs have been predefined by the administrator, a popup menu or a dialog window opens. In the former case all available programs are listed in the menu:

../_images/RunProgramMenu.png

Click the desired item to start the respective program on all computers. Alternatively click the last item Custom program to run a program that is not listed. This will open a new dialog window. In this dialog you can enter the name of the program to run:

../_images/RunProgramDialog.png

Confirm this dialog with OK to run the program. Please note, that a program often is not located in the program path environment so that you have to specify the complete path to the program, e.g. "C:\Program Files\VideoLAN\VLC\vlc.exe".

注解

To remove a previously added custom program, move the mouse over the according item and press the Del key.

提示

You can pass an argument to most programs with the name of a file that you want it to open automatically. For example, if you want to play a video on all computers, add the path to the video file separated by a space, e.g. "C:\Program Files\VideoLAN\VLC\vlc.exe" X:\Videos\Example.mp4.

注意

In case the program path or file name contains spaces, you always have to enclose the complete path and file name in quotation marks. Otherwise parts of the input will be interpreted as parameters. Example: "C:\Program Files\LibreOffice 5\program\swriter.exe".

打开网站

If you want all students to open a specific website, you can automatically let that website open on all computers. Use the Open website button to do so:

../_images/FeatureOpenWebsite.png

Depending on whether you added custom websites before or websites have been predefined by the administrator, a popup menu or a dialog window opens. In the former case all available websites are listed in the menu:

../_images/OpenWebsiteMenu.png

Click the desired item to open the respective website on all computers. Alternatively click the last item Custom website to open a website that is not listed. This will open a new dialog window. In this dialog you can enter the address of the website to open:

../_images/OpenWebsiteDialog.png

Confirm this dialog with OK to open the website.

注解

To remove a previously added custom website, move the mouse over the according item and press the Del key.

发布文件

Using the file transfer feature you can easily transfer files to all students and optionally open the transferred files afterwards. First click the File transfer button to open a file dialog which allows you to select the files to transfer:

../_images/FeatureFileTransfer.png

After selecting the desired files the actual file transfer dialog opens:

../_images/FileTransferDialogStart.png

In this dialog further options can be chosen before starting the file transfer. Per default the files only will be transferred to the user's home or profile directory without overwriting existing files.

覆盖已存在的文件
Enable this option to overwrite possibly existing files. This can be useful to replace an old version of a file or document with a new one.
仅传输
In this mode, only files are transferred without further actions being performed. Use this mode to silently distribute teaching material in advance without disturbing the students.
传输并用关联的程序打开
In this mode, the transferred files will be opened with the corresponding program which is associated with the respective file type. For example, text documents will be opened with the installed word processor program. Use this mode to make students work with the provided materials immediately.
传输并打开目标文件夹
If you intend to transfer many files at once, opening all of them automatically is not a good choice in most cases. Instead, the destination folder can be opened in a file manager window where students can view the transferred files and open the desired ones themselves.

After choosing the desired options click the Start button to start the file transfer. Depending on the size of the files and the number of computers this may take a while. A progress bar with the total progress is shown at the bottom of the dialog. After the transfers have been completed, you can click the Close button to finish:

../_images/FileTransferDialogFinished.png

屏幕截图

Veyon allows you to save the current screen content of single or all computers in image files. By clicking the button Screenshot you trigger the feature for all displayed computers:

../_images/FeatureScreenshot.png

If you want to use this feature for individual computers only, you can select the respective computers and select the item Screenshot from the context menu.

You will then receive an information message about how many screenshots have been taken. You can now view the images in the screenshots panel and delete them if necessary.