The VNC Manager - SmartCode Solutions Forum / General Discussion / SmartCode ViewerX VNC Viewer ActiveX

Thumbnails GetScreenBitmapScaled, scaleEnable

carsten — Sun, 15 Nov 2009 01:38:20 GMT

I tried to create thumbnails with ViewerX and look at the found http://s-code.com/forum/Topic1830-6-1.aspx which works. I have to scale the bitmap myself however.

In the activex methods I found the method GetScreenBitmapScaled, but this always returns a black bitmap. In the activex methods I found the method GetScreenBitmapScaled, but this always returns a black bitmap. Is it a bug?

Also when I set scaleEnable, scaleDen and scaleNum, I get scaled image in the active viewer window. I support this has the server scaled image, right? However when I ask for the ScreenBitmap, I still get the full resolution bitmap. Why?

The goal is to reduce the network traffic by transferring only server scaled bitmaps from the VNC servers to the client.

ViewerX v3.0 Beta will be released this month

Support (s-code) — Wed, 06 Jan 2010 05:34:51 GMT

Hi Guys,
we are planning to release the v3.0 Beta build this months. Please do send your feature requests so we could consider including them in the v3.0 release.

ConnectionAccepted Event

KarenS — Tue, 05 Jan 2010 03:48:17 GMT

Hi,

In my application I have used the ConnectEx method to establish a connection to my server.

I have added the Disconnected Event and the ConnectionAccepted Events.

In the Disconnected event method call I have called the ListenEx method on the port I am using.

In the ConnectionAccepted method call, i have called ConnectEx again to re-establish the connection and then StopListen().

I was expecting the Disconnected event method call to start listening for a reconnection to the server and then the control would fire the ConnectionAccepted event when the server recovers but the ConnectionAccepted event is never fired. Am I missing something or have I interepreted the events and methods supplied incorrectly?

Any help on this would be greatly appreciated,

Karen

High CPU usage v2.9.7.0

Support (s-code) — Mon, 21 Dec 2009 03:14:47 GMT

Hi guys,
recently we received a few reports about high CPU usage by ViewerX. We did some research on this matter and here is what we have found.

In out of the box configuration ViewerX'es CPU% uses about 4-8% of CPU when an UltraVNC viewer connected to the same server uses 1-3%. The reason for this is the VNC encoding used by ViewerX by default - Tight encoding. Apparently Tight encoding is CPU intensive one.

If you are experiencing the CPU% usage problem we suggest to use ZLibHex encoding instead. When ViewerX uses ZlibHex encoding its CPU% usage is on par with UltraVNC viewer.

Also next week we will be releasing 2.9.8.0 build that will include some additional CPU% optimizations as well as support for the Ultra encoding.

Anheru

anheru — Thu, 17 Dec 2009 08:06:09 GMT

hi, i've tried to move viewer window when it is larger than program window but i don't know how can i put scrollbars y that window or how can i solve this problem because i need use that visualization mode

thanks,

Properties to configure error Messageboxes

carsten — Sun, 06 Dec 2009 11:23:36 GMT

When messageboxes are enabled, the title of the Messageboxes is "S-Code VNC Viewer". This should be configurable (like the ConnectingText).

Also the error messages generated from S-Code should be configurable. E.g. when a connection to a non-existing server fails, the messagebox displays some english error message, generated by S-code, and the Windows error message which is in the language of the OS (e.g. German).

There should be properties, so that the error messages can by fully in German and there is no "S-Code" or "VNC-Viewer" title in the message boxes.

ViewerX and Windows 7

mrowley — Wed, 23 Sep 2009 10:59:18 GMT

I have recently upgraded to Windows 7 (impressive for a non service pack OS from Microsoft) but I am having trouble with the ViewerX control.

I have registered it with regsvr, I have copied my lic file to the directory where it lives. I have rebooted, restarted VS2008, unregistered and reregistered, checked the forums, googled for activeX windows 7 issues. I'm at a loss.

Everytime I run the app and load the form with the ViewerX on it, I get

Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

System.Runtime.InteropServices.COMException was unhandled
ErrorCode=-2147221164
Message="Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))"
Source="System.Windows.Forms"
StackTrace:
at System.Windows.Forms.UnsafeNativeMethods.CoCreateInstance(Guid& clsid, Object punkOuter, Int32 context, Guid& iid)
at System.Windows.Forms.AxHost.CreateWithoutLicense(Guid clsid)
at System.Windows.Forms.AxHost.CreateWithLicense(String license, Guid clsid)
at System.Windows.Forms.AxHost.CreateInstanceCore(Guid clsid)
at System.Windows.Forms.AxHost.CreateInstance()
at System.Windows.Forms.AxHost.GetOcxCreate()
at System.Windows.Forms.AxHost.TransitionUpTo(Int32 state)
at System.Windows.Forms.AxHost.CreateHandle()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.AxHost.EndInit()
at getservd_Command_Center.dialog_VNCViewer.InitializeComponent() in D:\Projects\GetServd.com\gsCommandCenter\v3.1\Dialogs\dlg_VNCViewer.designer.vb:line 172
at getservd_Command_Center.dialog_VNCViewer..ctor() in D:\Projects\GetServd.com\gsCommandCenter\v3.1\Dialogs\dlg_VNCViewer.vb:line 193

Any assistance or suggestions you might have would be greatly appreciated.

Thanks

VNC Thumbnail - through asp.net

isams — Wed, 22 Jul 2009 11:47:43 GMT

Hi,

We are evaluating your viewerX activex control and we really like it but want to use the facility to pull thumbnails of each unit VNC is install on through asp.net page returning a image handler response with the thumbnail. I see from other posts that you use viewerX to obtain thumbnails but is it possible from an asp.net page?

If so do you have any example c# code?

Thanks

SendCustomKey and Windows Key

mrowley — Fri, 24 Apr 2009 14:34:34 GMT

How can I use SendCustomKey to send the Windows Key down to the client?

Specifically I am trying to do a WindowsKey + R to get a run dialog and be able to run commands automatically through my application.

I also believe that SendCustomKeyEx is what I need to be able to hold the WindowsKey and get key combinations. Is this true? I believe SendCustomKeyEx is not available in the trial version, is there another way I can test this before purchasing the control?

Thanks

how to use SendCustomKey

garychu — Sun, 30 Nov 2008 21:05:47 GMT

hi,

when I use "SendCustomKey" to left windows key,

but it doesn't work. is any wrong with my code?

my C# code:

this.viewerX.SendCustomKey((int)System.Windows.Forms.Keys.LWin);

otherwise, how can I send the combine key(ex: Ctrl+Space) with "SendCustomKey" method.

thx.

Record VNC data to a file for playback?

diatonic — Wed, 25 Feb 2009 11:08:05 GMT

I would like to create a windows app that could record vnc data to a file for later playback. I have seen a few viewers that support recording the session, as well as a vnc proxy that can do this, but they do not support using NTLM authentication (which we use).

Is there a way to instruct the viewer to record the session to a file?.. or does this qualify as a feature request? :)

Thanks!

Passing RC4 key data into HTML via UVNCS_KeyData

Bonji — Fri, 23 Jan 2009 11:33:47 GMT

I am trying to use the new security property KeyData to pass the RC4 key to the client without the need of an external file, but I can't seem to get the syntax correct. I have truncated the HEX version of the key because obviously I don't want that to show up in a forum post.

Am I entering the key properly? Should there be a space in between every HEX char? I was also struggling on how to convert the key generated by VNC to a format usable by this ActiveX. I found an online converter that changed the text string from the file into a HEX format. Should this work? Is there a better to get a HEX string out of that file?

Can someone show me the correct syntax to define this property in HTML?

[code]

<HTML>
<HEAD>
<TITLE>VNC Viewer Website</TITLE>
<script language="Javascript">;
function OnConnect() {
window.ViewerX.Disconnect()
window.ViewerX.HostIP = document.VNCViewer.Address.value
window.ViewerX.Port = document.VNCViewer.Port.value
window.ViewerX.Connect()
}
function OnDisconnect() {
window.ViewerX.Disconnect()
}
function OnCAD() {
window.ViewerX.SendCAD()
}
function OnRefresh() {
window.ViewerX.RequestRefresh()
}
function OnFit() {
window.ViewerX.StretchMode = 1
}
function OnNormal() {
window.ViewerX.StretchMode = 0
}
function OnFullColor() {
window.ViewerX.RestrictPixel = 0
}
function On8Bit() {
window.ViewerX.RestrictPixel = 1
}
</script>
</HEAD>
<BODY>
<h2 align="center">VNC Viewer Control</h2>
<hr>
<form name="VNCViewer">
IP address:&nbsp<input id="Address" type="text" size="15" value="HOSTNAME">
Port:&nbsp<input id="Port" type="text" size="6" value="5900">
&nbsp&nbsp&nbsp
<input onclick="OnConnect()" type="button" value="Connect">   <input onclick="OnDisconnect()" type="button" value="Disconnect">
</p>
</form>
<hr>
<p><input onclick="OnCAD()" type="button" value="Ctl+Alt+Del">
<input onclick="OnRefresh()" type="button" value="Refresh">
<input onclick="OnFit()" type="button" value="Size to Screen">
<input onclick="OnNormal()" type="button" value="Size to 100%">
<input onclick="OnFullColor()" type="button" value="Full Color">
<input onclick="On8Bit()" type="button" value="8bit Color"></p>
<p>
<OBJECT id="ViewerX" style="BORDER-RIGHT: 1px solid; BORDER-TOP: 1px solid; BORDER-LEFT: 1px solid; BORDER-BOTTOM: 1px solid"
width="800" height="600" classid="CLSID:62FA83F7-20EC-4D62-AC86-BAB705EE1CCD" VIEWASTEXT CodeBase="viewerx.cab">
<PARAM NAME="HostIP" VALUE="">
<PARAM NAME="Port" VALUE="5900">
<PARAM NAME="Password" VALUE="">
<PARAM NAME="CustomCompression" VALUE="1">
<PARAM NAME="CustomCompressionLevel" VALUE="5">
<PARAM NAME="JPEGCompression" VALUE="1">
<PARAM NAME="JPEGCompressionLevel" VALUE="5">
<PARAM NAME="CopyRect" VALUE="1">
<PARAM NAME="EmulateThreeButton" VALUE="1">
<PARAM NAME="SwapMouseButtons" VALUE="0">
<PARAM NAME="Encoding" VALUE="7">
<PARAM NAME="ViewOnly" VALUE="0">
<PARAM NAME="RestrictPixel" VALUE="0">
<PARAM NAME="ScaleNum" VALUE="1">
<PARAM NAME="ScaleDen" VALUE="1">
<PARAM NAME="ScaleEnable" VALUE="0">
<PARAM NAME="FullScreen" VALUE="0">
<PARAM NAME="LocalCursor" VALUE="1">
<PARAM NAME="MessageBoxes" VALUE="1">
<PARAM NAME="DisableClipboard" VALUE="0">
<PARAM NAME="ThumbnailMode" VALUE="0">
<PARAM NAME="LoginType" VALUE="1">
<PARAM NAME="MsUser" VALUE="">
<PARAM NAME="MsDomain" VALUE="">
<PARAM NAME="MsPassword" VALUE="">
<PARAM NAME="ProxyIP" VALUE="">
<PARAM NAME="ProxyPort" VALUE="-1">
<PARAM NAME="ProxyUser" VALUE="">
<PARAM NAME="ProxyPassword" VALUE="">
<PARAM NAME="ProxyType" VALUE="0">
<PARAM NAME="ConnectionBar" VALUE="1">
<PARAM NAME="StretchMode" VALUE="0">
<PARAM NAME="UVNCS_EnableSecurity" VALUE="1">
<PARAM NAME="UVNCS_KeyStorage" VALUE="1">
<PARAM NAME="UVNCS_KeyData" VALUE="31 32 38 20 62 69 74 ...">
</OBJECT>
</p>
</BODY>
</HTML>

[/code]

Enable DSM encryption in HTML

Bonji — Tue, 06 Jan 2009 14:41:28 GMT

I am unable to figure out how to enable encryption via the DSM plug-in. I see the EnableSecurity property (along with KeyFilePath), but I am unable to code it properly in the example HTML file.

Sincerely,

Ben

Changing timeout value

vivekgargs — Thu, 06 Nov 2008 23:45:56 GMT

Hi,

We are currently using VNC ViewerX component. We wish to establish a direct connection with VNC server and should it fail for some reason we would want to go through a repeater.

Query: When our direct connection fails VNC ViewerX takes 20 seconds to notify our application and then we initiate a connection through repeater. We want to reduce the notification timeout value from the current default of 20 seconds. We are unable to find any such property in the component.

Please Advise and comment.

Screen Capture

tstokes — Tue, 14 Oct 2008 05:30:24 GMT

Can anyone advise me how to capture a screen shot of the current ActiveX session and load it into a PictureBox in VB6 please?

Thanks in advance

IE7 ActiveX error

tube — Mon, 20 Oct 2008 05:04:17 GMT

When i try to connect to my laptop using Free Web-based VNC Viewer i get error that my browser doesn´t support Activex.

Tested it with firefox and ie7

Thumbnail mode using ActiveX control

Carl916 — Thu, 20 Dec 2007 08:41:09 GMT

Is it possible to replicate the VNC manager thumbnail feature using the activeX control?

Regards, Carl Gilbert

ultra VNC ultra mode

pixvertex — Fri, 06 Jun 2008 07:51:06 GMT

is it possible to use the ultra encoding. I didn't find it in the specs.

enum VNCEncoding
{
RFB_RAW = 0,
RFB_RRE = 2,
RFB_CORRE = 4,
RFB_HEXTILE = 5,
RFB_ZLIB = 6,
RFB_TIGHT = 7,
RFB_ZLIBHEX = 8,
RFB_ZRLE = 16
};

thanks

Is full Desktop / switch monitor supported

pixvertex — Thu, 03 Jul 2008 01:39:55 GMT

I need to export a dual monitor setup. Which work great if you install the video hook driver.

The switch for changing to monitor 1 / Monitor 2 / Monitor1&2 can only invoked by the ultra vnc viewer.

I didn't find a command in your product to do so. Or did i missed something.

Thanks

micha

Color depth

daniele.ciattaglia — Thu, 17 Apr 2008 05:13:22 GMT

Hi everyone,

i would like to let the user decide the quality of the image or color depth in their connection.

How can i do that?
It's possible to do that?
It's possible to see the changes realtime? (like vnc for example that let me choose the color depth in my connection)

Should i use the JPEGCompressionLevel or CustomCompressionLevel properties?

thank you so much in advance
Best regards

Daniele

Keyboard and ViewOnly flag

l.baldini — Wed, 09 Jan 2008 14:22:29 GMT

Hi, I have a simple question... when the ViewOnly flag is set to FALSE every key I press is sent directly to the ServerX. Is there a way of detecting what I'm pressing before the key gets sent?

What I'm trying to do is the following: allow the user to go to Fullscreen mode than ask him to press, for example, CTRL-ALT-F5 to go back to normal mode...

I've tryied using the PreTranslateMessage of my CDialog form but it works only if the ViewOnly flag is set to FALSE...

Thanks,

Luca Baldini

ViewerX best performances on slow networks

l.baldini — Tue, 08 Jan 2008 02:47:43 GMT

Hi, I'm interested in using the viewerX-serverX in a very slow network.

For this I'd like to know what are the settings I should use in order to maximize performance on this very slow network. I've tryied several changes but I'm not yet fully satisfied.

Now I'm using the following:

CopyRect = TRUE
Encoding = RFB_ZLIBHEX
JPEGCompression = TRUE
JPEGCompressionLevel = 6
RestrictPixel = TRUE

Is there something better than this?

Thanks,

Luca Baldini

Full Screen

l.baldini — Tue, 18 Dec 2007 15:20:50 GMT

Hi, I've tryied using the ViewerX FullScreen feature but I can't get it to work. Is there an example somewhere that tells how am I supposed to use it?

Any help is appreciated!!!

ActiveX on website

luxy — Mon, 17 Dec 2007 05:10:16 GMT

I'm currently evaluation you ActiveX for use on a website. The website is an ASP application made in VS2005.

Can you sent me an example how I should handle the licensing upon installation of the ActiveX at the clientside ? It's obvious that I do not my users want to get the trial message.

Password Prompt Disable

Airegin — Fri, 09 Feb 2007 16:57:59 GMT

If I pass through an incorrect password from the use to the control, I want to trap the password error and not have the ActiveX control prompt for the password. How can I do this?

upnp or other "behind routers" solutions

archimedes — Sat, 18 Aug 2007 17:47:45 GMT

whats problems should i expect when trying to create a connection between a server and a viewer, especially when both sides are behind routers ?

is there a documentations for known issues ?

whats are the popular solutions ?

thanx,

on what web-based(!) vnc's does the viewer support chat and filetransfer, if any ?

archimedes — Tue, 14 Aug 2007 20:24:18 GMT

if i understand correctly, the viewer supports uvnc server filetransfer and chat and some more features.
i need a web based vnc server that the viewer supports theses functions on it.

when will the s-code activex server support those features ?

thanx,

v2.8.1.1

Airegin — Tue, 24 Apr 2007 19:12:18 GMT

On the side bar at http://www.s-code.com/products/viewerx/ says "ViewerX VNC Viewer ActiveX
2.8.1.1 (March 7, 2007)" But when you click on download (http://www.s-code.com/products/viewerx/download.aspx) it has the 2.8.1.0. how do I get the 2.8.1.1 version?

UltraVNC Repeater

Waeric — Thu, 22 Mar 2007 14:04:07 GMT

I need some help with using the UltraVNC Repeater, we have it set up for Mode II to be used with the SmartCode solutions. It is set up on a server that is out on the internet with ports 5500, 5900 + 5901 all open to it. We can connect with UltraVNC Server + SmartCode Server to the repeater and it shows up on the log. We can then use SmartCode Viewer or UltraVNC Viewer and connect; the problem is the speed. To say it is slow would be an understatement, it connects and waits for about 3-5mins before showing the screen. It then takes about 3-5mins to do a normal refresh as well. I'm wondering if I have the setup wrong or if it just does not like transmitting through NAT - NAT communications. Which is what I thought it was build for in Mode II?

Any help would be appreciated!

Stretch mode

njvr — Tue, 06 Mar 2007 11:45:39 GMT

I am using activeX control in C# Application. Stretch mode is not updating and consumes more memory.

Is there any way to set it right.

njvr

Vnc Viewer ActiveX control

njvr — Tue, 27 Feb 2007 13:43:03 GMT

how to send Keyboard shortcuts like Ctrl+Alt+del, Ctrl+Esc from C# program.

Ramana

Chat Customization

ama_fullstep — Mon, 13 Feb 2006 08:55:52 GMT

Hello,

I wish to provide a chat to my VNC users, but I would need two things in order to implement it:

- The possilibity to change the current nickname based in the machine name to another one based in certain variable or property from the control or VB program.

- The possibility to deactivate the security message at the beggining of the chat window because all of the chat transfers are going to take place in the server itself.

Is there any possiblity to do this two things with the current implementation of ViewerX?

If not, do you consider them for future implementations?

Regards,

Alfredo

View portion of server desktop?

Janine — Mon, 25 Sep 2006 16:38:17 GMT

Hi -

Is there a way to be able to view only a portion of the server's desktop? Support at SmartCode had mentioned in an email to me recently to retrieve a handle of ViewerX screen bitmap via ScreenBitmap property, then to draw a portion of this bitmap on the form where the control object is...? I need just a bit more clarification on this, or any guidance to another way of being able to view a portion of the server's desktop. Is there a way to, perhaps, specifiy a rectangle on the server's desktop via ViewerX, and just view this? I'm thinking along the lines of even setting the control object not to enable screen stretching, and disabling the scroll bars, limiting the user to explore the rest of the server desktop through ViewerX. Is there a way to do this?

Many thanks in advance :)

- Janine

Integration of ViewerX VNC Into Another ActiveX Component for IE

Genie — Mon, 18 Sep 2006 11:44:14 GMT

Hi, I would like to check if ViewerX VNC component can be integrated within another ActiveX component for use in Internet Explorer.

Thank you.

ViewerX with UltraVnc Repeater

txx1972 — Sun, 17 Sep 2006 16:40:57 GMT

Hi @ all,

i tried ViewerX and it works great.

But in the examples there was no explanation how to add
the UltraVnc repeater function in HTML-Code.

Can someone give me an example HTML-Code where i can enter
ID and repeaterproxy to etablish a connection like the Free Web-based VNC Viewer-Page
here on s-code.com? ( http://www.s-code.com/products/viewerx/webvnc.aspx )

Thanks for help

Timo

Using Active X in web Application

Herve — Wed, 22 Feb 2006 12:24:28 GMT

Hello,

I'am making a study for a client.
I would like to use the smart code solution and use the Active X in web Application.
But I would like to know if it's possible to have several users whose connect to several Host ?
Is is possible, by using the Active X to have the list of hosts system in the network ?
Can we know if someone is already connected to a host ?
Can we have the state od a host (enable, already under control ...) ?
Can we stop the connection of someone else ?

Can you give me some help about that ?

Thanks.

Herve

UltraVNC Single Click server support

Support (s-code) — Thu, 12 Jan 2006 03:26:58 GMT

Just for your information guys.
We have added support for the UltraVNC Single Click server to the ViewerX control. A new build with this feature is going to be released with in a week or so.

ViewerX 3.1

Diversicom — Thu, 15 Dec 2005 13:52:06 GMT

Is there any date or expected release date and functionality list?

ViewerX "Full Screen" on HTML

Diversicom — Fri, 16 Dec 2005 10:29:12 GMT

What's the best way to get true "Full Screen" view using ActiveX embedded into an HTML page?

Getting started

tfield98 — Tue, 13 Dec 2005 21:19:15 GMT

We're WebEx customers today. Customers call us and we initiate a WebEx session. WebEx is much more than we need.

We're newbies to the VNC world, so we're not quite sure what we're facing and if your product is right for us.

We want to do a [u]silent [/u]install on the customer's machines so our help desk can access it. We've already determined that runtime args /V/qb!/S to your msi exe seem to work fine for that.

But, then what? Once your component is installed on the customer's machine, our Delphi app can call it. But, can you give us an overview of what would happen? We assume that our support engineers run VNC Manager (or any VNC client?). Your activeX component makes the [u]user's[/u] machine a server, right??

Is your ActiveX component a [i]visual [/i]component? Can our application on the customer's machine call it silently, providing password and client IP and whatever other connection parameters are required?

What's the safest configuration to avoid firewall, proxy, admin rights, etc problems? Can this be configured via calls to your component?

Thanks for your help and any pointers to additional information on the web or your site.