Panel and Canvas

Hi all,
I am working on a maintenance project.
in this project,the programmers have used Canvas.
But i want to use panel.
Is there any difference between Panel and canvas.
Regards,
Tapas

Panel is a container (and may contain subcomponents).
Cnavas is a simple drawing surface component.
Ragnvald Barth
Software enigneerhttp://blake.prohosting.com/ragnvald

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Difference between panel and canvas?

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Hi,
Panel and Canvas are definitely not the same. Panel can
layout its children for you based on the layout property. Its also
got a title bar.
Canvas will not layout its children. Please find more details
below.
http://livedocs.adobe.com/flex/3/langref/mx/containers/Panel.html
http://livedocs.adobe.com/flex/3/langref/mx/containers/Canvas.html
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Adding mouselistener on Panel and Canvas

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I m building an application in which I m making a frame, adding a panel on it and then adding a Canvas on the panel. On this Canvas my Native C code is drawing an Image. This image is very small with respect to the size of the frame.
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And when I add mouselistener to the Canvas I get the event but I get the event on the whole frame even if I set the canvas size equal to the drawn image size. I only want the mouse event only if mouse is clicked on the image.
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Hi,
I m building an application in which I m making a frame, adding a panel on it and then adding a Canvas on the panel. On this Canvas my Native C code is drawing an Image. This image is very small with respect to the size of the frame.
The size of the Panel and the Canvas is made equal to the size of Image drawn.
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Now the problem is that when I add mouselistener to the Panel I don't get any event.
And when I add mouselistener to the Canvas I get the event but I get the event on the whole frame even if I set the canvas size equal to the drawn image size. I only want the mouse event only if mouse is clicked on the image.
Can anyone tell the mistake or suggest any other way of doing this ?

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> Hello. I have a problem with a Remote Panel and Internet Explorer. I
> create a measurement system in LabVIEW. It?s composed of a main front
> panel and a few subVIs with independent front panels opened from main
> Front Panel when I press appropriate button.
I think you have two options. You can open most modal subVI panels
directly on a remote machine. The popup panels won't be in a web page,
but it will work with few changes.
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page with a different embedded panel.
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Using a Meter control in LV Touch Panel, and using shared variables that are custom controls.

I Just started using LV touch Panel module with an NI TPC-2106.
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Ipshita_C,
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Attachments:
test 2.vi ‏10 KB

Remote Panel and DSC interfering?

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I have a program which monitors temperature for rooms with fruit, We acquire the temps through modbus RTU, and We see that info through internet.
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http://digital.ni.com/public.nsf/allkb/7F95D43D3F50FCAC8625710E000068E1
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With IEXPLORER (right) it works in chrome (left) it doesn't
Working on IExplorer
So I followed the steps from the instructions, added the web page to my project, added to the build, and built
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My ni config
# Web server configuration file.
# Generated by LabVIEW 14.0
# 13/06/2015 11:44:16 p. m.
# Global Directives
NI.AddLVRouteVars
ErrorLog "$LVSERVER_ROOT/logs/error.log", level=2, anew
TypesConfig "$LVSERVER_ROOT/mime.types"
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LoadModule LVAuth lvauthmodule
LoadModule LVSnapshot lvsnapshotmodule
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Listen 8000
# Directives that apply to the default server
NI.ServerName LabVIEW
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AddOutputFilter chunkFilter
DirectoryIndex index.html
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[SMC]
server.app.propertiesEnabled=True
server.ole.enabled=True
server.tcp.paranoid=True
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saveFloaterLocations=True
find.viListFlags=0
LastErrorListSize=0,0,0,0
paletteStyle="NamedIcons"
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Requested VI is not loaded into memory on the server computer
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Remote Panel connection refused by specific server, Make sure Labview Web server is enabled
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It's always hard for me to get the web page working, but this time I've spent hours without success
I did the test in my development pc and in the target PC and is the same, on these PC's the webpage was working before using DSC.
So any help will be appreciated
My best regards

The DSC Runtime Engine will be sufficient for the deploying the project to a new computer. The Run Time Engine is equivalent to the DSC Module, but you can't do any programming with it. You will need to purchase a separate license for the Runtime license for each deployment computer also.
What is the DSC Run-Time System and When Should I Use It?
http://digital.ni.com/public.nsf/allkb/E56DB8726DB68F288625770E00594351
Thanks,
Frank
Application Engineer
National Instruments

Remote panel and selective control access through Security with DSC

Hi Everyone,
I looked around to see what labview had to offer concerning security of remote panel and all the solutions I've found only propose full access to a remote panel, or none. The login page is not an option for me as everyone on the intranet can access the remote panel for monitoring but not everyone can have control to the buttons on it.
With the DSC module, I can give securities to the different controls and it works great with the exe, if I log in or out, the controls appears or disapears. Unfortunately, with remote panels, those controls are always visibles. Furthermore, when I log in from a remote panel, all the other remote panels get logged in with the same username and priviledges. When I log out, same thing, it logs out all the other remote panels. So the last guy who logs in gives its priviledges to every one else who is monitoring the remote panel at that time. when he logs out, he logs everyone out. I used a reentrant vi hoping that this would solve the problem but it didnt.
I would like to do what my colleague does with Advantech without any problem. He has only 1 .exe is running on the server and whoever connects to it through webserver, just needs to log in and he has all the priviledges of an guest, operator, admin, etc.. with access to controls and features accordingly. All this without interfering with the other people using the remote panels. This colleague has always been doubtful about the capabilities of labview to do SCADA systems and uptil now, I've been able to prove him wrong.. please help me continue
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Thank you for your help.
Solved!
Go to Solution.

Thank you very much for your reply Jordan.
The NI security info is on the server (local domain with groups and users), and the running exes as well. The remote panel is not supposed to be accessed by internet, at least not yet, but just by the computers on the network and thinkline computers who are directly connected to the servers. the remote panel is accessed through the simple url: http://serverip/Application.html
There is no problem with accessing the remote panel of the exes on the server from another computer on the network. But there are several security issues when logging in and out with the NI Security Programmatic Login and logout VIs through the remote panel..
The 1st problem occurs when several people access the remote panel at the same time. In my setup, everyone is allowed to check what's happening on the front panel of the running exe, go through the tabs, check the graphs, the tables, etc.. , but only the administrators and the operators can send commands to the machines and the production line through this remote panel. Hence some buttons are accessible to all users, while others are only accessible depending on the privileges of the person logged in.
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I hope that I have been more clear in this 2nd post,
Thank you again for your time.
Best Regards,
Tom.

I have a pc running windows 7. I got an Airport Extreme 802.11n Wi-Fi and the printer is now plugged into the Airport. The wireless router works fine but the printer shows as offline in control panel and in word. The printer is a HP LaserJet CP1525nw.

I have a pc running windows 7. I got an Airport Extreme 802.11n Wi-Fi and the printer is now plugged into the Airport. The Airport works fine but the printer shows as offline in control panel and in word. The printer is a HP LaserJet CP1525nw.

+For now I have it set to Share Public IP address - Is this correct for my Network Setup with The Airport Extreme being the only router being used ?+
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Draw in a Panel and Scroll around it with the Mouse

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Hi,
Test Tools in Visual Studio 2010 and 2012 forum is to discuss visual studio test issues. Based on your description, your issue seems to be more related to programming. If this is the case, I recommend you to consult your issue on some
development forums such as Visual Studio Language Forums:
http://social.msdn.microsoft.com/Forums/vstudio/en-US/home?category=vslanguages,
Windows Forms Forum:http://social.msdn.microsoft.com/Forums/windows/en-US/home?category=windowsformsor
WPF forum:
http://social.msdn.microsoft.com/Forums/vstudio/en-US/home?forum=wpffor better support.
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Panel and Canvas

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