VS 2008 - Implementing System To Check Whether Plugin Installed
Jul 8, 2009
I am trying to create a plugin system. I have the actual plugins working fine but now I want to implement a system that knows whether the plugin is installed or not. I can get the plugin name when the form is loaded (ex. "Plugin1"). I then want to check this against something to see if that specific plugin is already there (if not add it) and if it is there is it enabled. I was thinking of doing this with an xml file but thought that might be a lot of work reading and writing each value. I then thought of the My.Settings and was wondering if this is possible. I would want to create an "element" for the name and give it a value of either true or false.
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Jun 22, 2009
I wana check outlook versions (from 97 to 2007) installed on system.how can do that in vb.net..
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Jul 8, 2010
I've got an MDI form with a menustrip that already detects all .dll files in a folder and adds them to the menu to show the user which plugins are available. The thing is that I don't know what to do from here on out...
I'd like to be able to update my program without having to stifle through all my code (it's a very big program) and be able to create basic new features through external DLLs. It's extremely useful for users to make their own features too
Anyway, what a plugin would look like is most likely just a form with controls on it that the user makes themselves in VB. I'd like the plugin to activate through an init() sub within the plugin by clicking on the menu item shown in my MDI form.
I kind of started with my own code but it didn't really get anywhere:
ListFilesInMenuStrip(PluginsToolStripMenuItem, App_Path() & "Plugins")
For Each c As Control In Me.Controls
If TypeOf c Is MenuStrip Then
[Code]....
...Where ListFilesInMenuStrip() is my function to add all the DLLs to the menu and App_Path is just a shortcut function which serves the same purpose as VB6's App.Path() class.
I've also done research but only came across all their weird complex CodeDom and other weird things...This seems so simple but I just can't wrap my mind around it :I
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Aug 23, 2009
i want to make a webcam capture program but i want a msgbox to display if webcam is not found.
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Aug 22, 2010
Is there a function that determines the letter that windows is on installed. For example:
D:
C:
G:
etc...
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Aug 24, 2011
The code below checks whether IE enhanced security configuration installed or not on a server. this works for server 2003 but doesnt work on 2008 r2. it returns IE enhanced security configuration installed response when i know and have checked that its not.[code]...
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Jun 1, 2011
Is there a significant enough difference with .NET from regular native code to maketraditional plugin systems not very useful? Either way, there must be some system for making a program extensible after it is compiled. To allow third party development withoureleasing the source code. Anyone have info on this? I said .NET, but of course specifically I mean Visual Basic
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Mar 8, 2012
I am trying to make a plugin system in vb.net and i am using interfaces to do that. I have managed to implement the plugins but now i am having problems with setting the plugins in a dictionary or some sort of array.
The system is simple. I have the main application and i have plugins. The application needs 2 mandatory plugins and that is data and authentication. Other plugins are free to use so i have 3 interfaces. Data, Authentication and CustomPlugins.
I load the plugins with this
CODE:
It works fine like this but i want to make a collection of plugins because i don't know how many plugins the customer make. So initially i thought to make a collection
CODE:
But that doesn't work. The main focus is to load as many plugins as i like but have then in some sort of array. A dictionary would be perfect but is not a must.
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May 14, 2009
i want to implement in a program. I'm not asking for code just some advice and maybe a link or 3 to useful pages on the internet.I want to create a plugin system for an application that i want to make. The idea for the plugin system is based on the following...
1-Some graphics editing programs have what i think is called a filter/effects chain. its where you make a list of filters and settings that the program runs to edit the image.
2-In yahoo pipes you take small parts and use them to complete tasks for you mashup (like pulling all the images returned in a search and displaying them).
The system i want advice on is basically a plugin chain system modeled after these 2 idea's where the user selects plugin's and forms a chain out of them.for instance if i wanted to display a picture then i would form a chain of plugins like this
legend:[(inputs)what it does(outputs)]
[show open dialog plugin(output filepath)] -> [(filepath input)open picture plugin(output bitmap object)]->[(input bitmap object)Display a picture plugin(make a form for display)]
The code for the task's will of course be in the plugin's.The problem is i have never done any plugin system before. the hardest part i need help with is getting the plugin's loaded and sending the output's to each other. Also another problem i think is that the plugin's could be for anything (parsing text, displaying a picture, opening a url, downloading a file, etc, etc)Again I'm not asking for code just advice and some useful links to information.
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Aug 16, 2011
I am looking for the best way to make a plugin type system for themes. have allow users to create custom GDI based controls in a dll plugin that is to be able to be switched on runtime by users. My issue is there is no way to have a dynamic inheritance so how can I make it so the controls show in the toolbox and can be changed on runtime?
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Dec 21, 2008
I am trying to create a plugin system where plugins can be dynamicly loaded (we don't know how many there are, what their classes are called, ...)This is sample code for a plugin:
Code:
Public Interface IPlugin
Sub bla()
Function bla3() As String
End Interface
[code]....
This code SHOULD msgbox("yay") when it finds a type that implements my IPlugin interface. Yet it never finds one. I can't find what I did wrong. It gets to the debug.print("2"), but never gets past the "If GetType(IPlugin).IsAssignableFrom(t) Then".
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May 9, 2009
Dim SPECIAL As Acronym = "Strength, Perception, Endurance, Charisma, Intelligence, Agility, and Luck." The game I'm working on is going to use this style of system.
What I need to do is:
1. All SPECIAL values have to be between 1 and 10. [DONE]
2. When adding and subtracting from any SPECIAL; update remaining points accordingly.
3. If remaining points = 0, then you cannot increase any SPECIAL.
4. If remaining points <> 0, then you cannot continue until all are spent.
I'm up to task 2, but having some difficulty.I managed to figure out how to do it for one. For example:
Sub Numeric_Up_Down_Strength_Value_Changed() Handles Numeric_Up_Down_Strength.ValueChanged
Label_Remaining_Value.Text = CStr(10 - Numeric_Up_Down_Strength.Value)
End Sub
But I'm having trouble figuring out how to make it work for all. I've had some ideas but upon trying to implement them I've been having data type conversion errors.
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Feb 18, 2011
I've written a pretty good browser in vb.net (it's in the "Share your Project" forum). I now want to give users and other developers the ability to extend/add buttons & functions to it. Can anyone suggest to me a good way of implementing this bearing in mind that I've never tried to do anything like this before? (so basically a way of implementing a plug-in based system. I was planning on these being small snippets of code which my application has the ability to compile.)
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Sep 8, 2011
I created an application using VS2008. I am having a problem on only one PC. If I log on to the PC as the domain administrator, it deploys and runs just fine. If I log on as the user I get an error that basically says "The referenced assembly is not installed on your system. (Exception from HRESULT: 0x800736B3)". The error comes when running Venodr.appref-msl. VENDOR is the name of the application. The source is System.DeploymentSystem.Runtime.InteropServices.COMException I upgraded the user to a domain administrator and it still will not run. The PC is XP SP3
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Aug 10, 2010
Is it possible to automatically insert a Code Snippet when an interface is implemented? If so, how do you do it? I am looking for something similar to when you implement IDispoable in VB.[code]This will be used by web forms when transfering parameters from one page to the next using Server.Transfer
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Jul 17, 2009
I have created one setup package using VS 2005 deployment. I need to check wheather Microsoft Webservice 2 is installed or not condition before installing. I have used "Launch Condition" which need Component Id. But i am not able to find to where i can get component id for "Web Services Enhancements 2.0 SP2 for Microsoft .NET".
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Apr 19, 2010
i need to create one application to check
1.Windows installer installed or not if not i have to invoke WindowsInstaller MSI
2. .NET Framework installed or not if not i have to invoke .NET Framework MSI
3.then finally i have to invoke one EXE file
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Mar 3, 2009
Is there a quick code (VB 2005/2008) for checking if Framework is installed on the host system?
So the program you are designing runs and checks for framework.
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Aug 18, 2010
I have a VB.NET 2008 (FW 3.5) app with J# 2.0 as a prerequisite.For some problems I have to check during runtime if this framework is installed.
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Feb 26, 2009
I'm using VB.Net 2005 Pro and want to be able to check if a particular program is installed. I've seen lots of ideas about checking files in the program files folder or scanning the registry for keywords but none of these seem particularly foolproof. Is there a way to get a definitive answer to if an app is installed?
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Apr 6, 2012
I am planning to make a setup wizard for my program through visual studio 2010. My program uses SQL databases, and I just wanted to know if there is a way to check if SQL is installed through the setup wizard and if not install it. Or at the very least provide a link to where they can get an easy setup file.
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Jul 13, 2010
My application required .NET Framework 2.0.Currently, if it is not installed the user recieves the following error:The application failed to initialize properly (0xc0000135)'.It becomes extremely tiresome repeating to users that this is because the framework isn't installed. Is there some way to check if .NET framework 2.0 is installed before running, or in some way change this cryptic message so the user knows immediately
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Sep 21, 2010
Basically I want this to be implemented:1)The user presses a 'Open Itunes' button2)Program checks if iTunes is installed
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Feb 15, 2012
i am working on an application and i want to connect it with mssql database , i dont know about the version of installed mssql server at the pc , how can i get the version of installed mssql server so that i can connect my application with that .(is it possible to check the version of installed mssql server with out connecting it with my application.)
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Aug 20, 2011
I was thinking of checking the registry keys that a web browsers makes, and hopefully seeing if I could get accurate answer. Yet I only discovered that most of them do not remove registry values after a uninstall, nor do they make any indication that the program was removed from the system.
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Jun 1, 2011
I have been trying for days now how to create a process to the user to easily create a connection to any installed data types they have installed. I have found an example right inside vb2008. I never use this because I code my own connections, but this would be real nice if I could include it or duplicate it.
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May 8, 2009
Is there a way to find out the system time format? (If it's 24hour or 12 hour)
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May 15, 2009
I want to know if the .net framework is installed on the system if it is not installed on the system then i would like to give a message to the user about it and exit my application. The problem is if the frame work is not installed on the system the application doesn't even starts.
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Jul 18, 2011
I have a dll installed on my machine and want to find a way to verify this programatically with VB.Net. I have been trying to use LoadLibrary but it always returns a zero. Can someone provide a code snippet of how I might do this?
Also, if there is another way to verify that a dll is installed, without having to supply a full path, please let me know.
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Apr 23, 2010
Using either VB.NET, C#, or VBScript, how can I check if the IIS 6 Management Compatibility feature and its subfeatures have been installed on a machine running IIS 7.x?
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