You are here: Home › VNCX

VNCX

VNCX is an ActiveX control for adding VNC client capabilities to any Windows based application that supports ActiveX (OLE automation). This includes VB, VC++, VJ++, Delphi, Microsoft Office (Word, Excel, Access, PowerPoint) and Internet Explorer. VNCX is written in ATL (no dependencies on MFC) and is distributed as a single file (VNCX.dll).

VNCX.DLL is free for non commercial use and comes with absolutely no guarantees. Credit must be given in both product documentation and within the software (e.g. the About Box).

VNCX based Viewer32

VNCX on the Active Desktop

VNCX embedded within a Word document

Viewer32

Viewer32 is a VNCX based viewer written in C++/MFC. You can download it below.

Installation

Download the archives below and unzip VNCX.DLL and Viewer32.exe into any directory. Run Viewer32.exe to automatically register the viewer. If you want to register the DLL yourself you can dot his at the command line by running regsvr32.exe.

C:\WINNT\SYSTEM32> REGSVR32 VNCX.DLL

Examples

VNCX embedded inside a Microsoft Word document.
VNCX hosted inside a web page. (VNCX.dll needs to be already installed)

Downloads

VNCX.DLL version 0.9.2.8 (released 2001)
Viewer32 version 0.0.0.2 (released 2001)

15 Responses to "VNCX"

robert says:

April 5, 2013 at 12:20

Looks like a very useful tool. Unfortunatley I can’t get it to work! Able to connect but the remote display is not shown. Does anyone know of where there are some detailed instructions on how to implement it in a webpage?

Reply
1. tum says:
  
  May 19, 2013 at 21:10
  
  By default the control does not start processing graphics after connection. There’s an argument on the connect to “AutoStart’ or alternative you can manually call the start method in response to the Connected event. Cheers.
  
  Reply
  1. Anonymous says:
    
    January 21, 2016 at 22:43
    
    I would like to try the AutoStart that you mention but it is not clear how to do that. Is done using the Flags parameter and if so what flag should be used, or is there a different method. Starting in response to the connected event does not work well for me as I have a large number of VNCX controls connecting at once.
    
    Reply
  2. Martin says:
    
    January 21, 2016 at 22:51
    
    Can you say more about the AutoStart argument and how to use it. Is it done with the flags and what flag should be used? Thanks
    
    Reply
annon says:

June 25, 2013 at 12:17

Hi there,

I am trying to stretch the activex control to see the full server window but it is only showing the top left hand corner. I have tried all the properties with no effect.

Can you please help

Reply
Declan says:

June 26, 2013 at 10:33

Hi there

I have had a play around with the activex control. However I need to reduce the size, but when I do this all I can see is the top right hand corner of the screen. I have used the exe program and in there is an option zoom. This works great in the program but this option does not seem to be available in the activex control. Hope this makes sense

Reply
1. tum says:
  
  June 26, 2013 at 13:11
  
  Checkout the Stretch* properties 🙂
  
  Reply
  1. Declan says:
    
    June 28, 2013 at 08:27
    
    Thanks for your reply.
    
    I have look at those properties and they do not seem to work.
    
    I have tried the Stretch property with True and False and changed the StrechMode property around from Normal to Halftone and nothing changes.
    
    I have tried them in different configurations.
    
    Any Ideas?
    
    Reply
Declan says:

July 1, 2013 at 11:12

Hi There

I have found some more properties which do not appear in the properties window but appear when you access the activex in the code window.

VNCViewer1.StretchX 2, 7

VNCViewer1.StretchY 2, 7

This has done the trick.

Thanks
Dec

Reply
denis says:

July 18, 2015 at 07:45

Nice project.
How to connect trought repeater?

Reply
Ilya says:

December 9, 2015 at 09:59

Hey!

Great job on the component, working nicely for me, I do have one issue though:

I need to collect separate frame bitmaps. While I can recieve a frame update event message, sometimes I can’t adequately read the updated bitmap pixels: if I try to read them through ‘Picture’ property I may recieve a distorted picture with artifacts, which probably happens because another frame is already in process of replacing the one I’m trying to read (are there different threads dealing with event update messages and updating a bitmap?). What I would want is to recieve an updated bitmap immediately with a frame update event message. Can this be done?

If there is no immediate solution (or maybe I am doing something wrong entirely?), I would really like to have a look at the source code for this component, if you still have it lying around.

Thanks!

Reply
Matthias says:

January 15, 2016 at 10:53

Hi, nice tool.
We would like to use it in a commercial software. Is there a way to license it?
regards
Matthias

Reply
Fronzel Neekburm says:

February 3, 2016 at 18:13

Thank you so much for still hosting this excellent library. It still works like a charm on Windows 10.

Crawling through webpages from 15 years back, it looks like there was also documentation regarding the interface. Is it still available?

Reply
Dejan Crnila says:

March 8, 2017 at 13:21

What about 64 bit version? Is it available?

Reply
Eli says:

November 23, 2018 at 04:29

Can vnc server be made into DLL?

Reply

Viewer32

Installation

Examples

Downloads

Leave a Reply Cancel reply