Im trying to write a simple c++ dll and then reference it in my vb form app however im having a hell of a time doing so. but im getting an error when i call the c++ function in vb.net
here is the c++ code
#include <WINDOWS.H>
LPCSTR DisplayStringByVal(LPCSTR pszString)
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I would make a textbox in the form, then I add a Microsoft Speech Object Library reference. Then using Microsoft Speech, I would have the text-to-speech option. In the same class I would add this code:
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I have a project that was created as a class library application. It does not have any start up forms. How do I add and show a start up form to this project? Where does this application start since there is no Main Sub that I can find. I am using Visual Studio 2008 express.
View 2 RepliesI was looking at tutorial that was detailing how to Build a Class Library Component and Consumer Client Application. One of the steps involved was how to add a reference to a library. Am I right in assuming that the reason for adding a reference is to show Vb where class library is located. I would also like to know if it is possible to add the reference within the code. In the tutorial the reference was added via the top menu (selecting project and add reference).
View 4 RepliesMy problem is when i try to call Application.Run() in a application without a form i get "Object reference not set to an instance of an object." when i run it outside VS. but if ran in debug or release mode it works just fine. i may just be forgetting to setup application right, but ive done it before in this same manor and it worked fine.
Sub main() 'this runs first.
AddHandler Application.ApplicationExit, AddressOf ExitEventHandler
dbg_f("handle added")
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Commented out init_timer and init_ready, and now it causes the same error for the myName line. there seems to be something wrong with class Application. btw theres seems to be something wrong with the forum code formatting.
I want to use IWshRuntimeLibrary library to create shortcut icon, i know how to use it within the VS IDE, just add it as reference. My problem is im creating the program on the fly using CSharpCodeProvider. So how do i reference the library in my source code. it will work if i use it from VS IDE, i got some hints on the web and try it ,but it doesnt load the assembly. The line below is what i got from the web but it doesnt work . "DLLFILES" is the folder that i put the IWshRuntimeLibrary.dll AppDomain.CurrentDomain.AppendPrivatePath(Application.StartupPath + \DLLFILES); i put this line the mainusing IWshRuntimeLibrary; //refrence the library,
View 12 RepliesThis is strange. I tried to create a new project to reference the Outlook Object Library, but I can't get the code references to work. Here's what I'm doing:
Quote:# Start Microsoft Visual Studio .NET.# On the File menu, point to New, and then click Project.# Click Visual Basic Projects under Project Types, and then click Console Application under Templates. By default, Module1.vb is created.# Add a reference to the Microsoft Outlook 12.0 Object Library. To do this, follow these steps:
1. On the Project menu, click Add Reference. 2. Click the COM tab. 3. Click Microsoft Outlook 12.0 Object Library, and then click Select 4. Click OK. If you are prompted to generate wrappers for the library that you selected, click Yes.
# In the Code window, replace the default code with the following code:
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I have a .net class library that works fine. This library has a reference to en external dll. I have converted all its class to comclasses and checked the com interopt checkbox in order to use it as com library. I also registered it with regasm.
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So I would like to explain what am I doing before I post the question. I would make a textbox in the form, then I add a Microsoft Speech Object Library reference. Then using Microsoft Speech, I would have the text-to-speech option. In the same class I would add this code:
[Code]...
Okay normally this was easy to do, but now with IE9 Visual Studio 2010 hangs and crashes. The problem seems to be even worse because you can't build an Interop.mshtml.dll to match version 9. I've tried using the VS command prompt with no luck. Allegedly this is how it is done, but there are no known examples that actually work. If anyone has done this with success
View 3 RepliesI have a solution built of 3 projects:
View 2 RepliesIs the my reference library is available in visual basic 2008 Express Edition?
View 1 RepliesI've created a class library and it's shared by several projects I'm working on.
I added a reference to the DLL - but it appears to have copied it locally - and that's causing problems when I modify the class library. Seems I have to drop the reference and re-add it.
I'm seeing info on the web about adding a PROJECT REFERENCE but can't seem to get that to work.
What is the best method of sharing a class library with several other projects.
Actually - should all my projects be in one SOLUTION? Is that preferred.
It will be 5 projects all working with the same class library...
I have a solution built of 3 projects:
1. VB.NET Class Library - data access and objects, reusable methods, etc.
2. ASP.NET Web app - web application that references the class library
3. VB.NET Windows Form app - windows app that references the class library
I have no problems with the web app. It referenes the class library and every time the project is built the web app gets a freshly compiled dll from the class library.
My problem is with the windows form app. When I first add the reference to the class library project, I get all of the intellisense I'd expect while coding. When I try to compile, though, it's like the reference disappears and all my code that is based on the class library errors out with "'xxx' is not declared" or "'xxx' is not defined" where 'xxx' is a method or class within the class library. If I go into the project properties, the reference is still there, but the project no longer compiles and I also lose intellisense for all classes within the class library. If I remove and re-add the reference, it works again, until I try to compile. Then the errors occur again.
I've tried creating a separate Windows Forms project and just referencing the DLL created by the class library but get the same problem. HOWEVER, if I create a seperate blank WEB project and reference the dll (or the project), everything compiles fine. It seems to be something with my class library being referenced by a windows forms app.
For reference purposes, my class library has the following references:system, system.cor, system.data, system.data.datasetextensions, system.drawing, system.web, system.xml, system.xml.linq I noticed I can't add a reference to System.Web in my windows forms app, and I wonder if my problem is somewhere in this area. I need the reference is my class library because it passes some HttpContext objects back and forth to a few of the methods.
I'm a VBA programmer and can do Office integration in Office applications.I'm programming in VB in VSTS 2008 and following these steps to create an Excell application at runtime: [URL] but it is not working.The issue I'm having is when I add the reference, the library is not recognized by VBE intellisense and compiler, so: the code doesn't run.When I use late binding technique and declare variables as objects, the code runs OK, but I don't want that way.I tried adding the references in two different ways:
1 - Menu Project / Add Reference / tab COM / Microsoft Excel 11.0 Object Library / OK
2 - Menu Project / VB Properties / References / Add / Microsoft Excel 11.0 Object Library
Both methods didn't work.
I have a big problem.I'm starting with Visual Basic (2008) and I get this error when you want to run the program,
Warning 2.Unable to load the type library for reference "MSCommLib.Library not registered. (Exception from HRESULT: 0x8002801D (TYPE_E_LIBNOTREGISTERED)) prjRxData
I was able to use the VB off line iso file to install VB 2010 Express but it did not include the Reference Library
View 9 RepliesI have the following code :
sw = New StreamWriter("scanner.txt")
sw.WriteLine("TEST")
sw.Close()
This code should write the txt file to the folder my exe is in. This is the case on hundereds of different machines.
However I have just found out that on one machine my code always writes the files to the desktop and expects to read from the desktop. I am going to change my code so it looks specifically for the application folder but I still dont get why this is happening on one machine and not on all the others.
I want to use a program codes written for GWBasic in VB 2005. how to do it?
View 9 RepliesI have made a Medical software writen in VBA and now I want know how can one who has not Microsoft Office (Excel) installed, run the program.
View 1 RepliesI'm trying to upgrade a VB6 app to VB 2008. I have read the article in the tutors corner about automating Excel from VB but I cannot get it to work. Heres what I have done:
1) set a reference to the Microsoft Excel 12.0 Object Library
2) Added "Imports Excel = Microsoft.Office.Interop.Excel" to the top of the module
3) in a routine I have added: Dim X As New Excel.Application Here's where I get an error: Error 75 'Application' is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'.
I'm using Visual Basic 2008 Express in Windows XP Home edition. I'm trying to compat a MSAccess database using code. When the program is loaded, the error window shows the following comment: Cannot load type library for reference "ADODB". Library not registered. (Exception from HRESULT: 0x8002891/D (TYPE_E_LIBNOTREGISTERED))
Checked some forum sites and they suggested that some .dll files were corrpurted. I went back to Microsoft and resintalled the Visual Basic 2008 Express package from the Web Site.
When I tried to start my visaul basic program, the error was still in the error list.
I have writen a piece of software which takes values from a serial port, peforms some calculations and then records the result in an Excel file.It also uses some values stored in an excel file for reference.
The program will run fine for days/weeks until the PC is rebooted mid run.Once it gets rebooted mid run I ge the error "RPC_E_DISCONNECTED"This then occurs everytime the program is run.Full error file below.I'd like to code for this error of course but even a simple fix to stop it happen once the PC has been rebooted to allow it to run again would do. I can give more details but I'm not sure where to start.Target system is windows XP SP3 with office 2007
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I have a game which has a chatbox in it and was wondering if its possible to create a program that intercepts the traffic going into and out of the game including whats writen in the chatbox.I am the host of the game.Basicly I want the information to be displayed in something like a richtextbox?
View 1 RepliesI am not able to find the Exclude Command in VB 2010 Express. I have no idea which version of Visual Studio it is working with. I've got one 217MB VB 2010 Express file and many 2008 VB Express files with one of them measuring 31 MB. There many other SQL files and .Net Files.
View 4 RepliesI have been trying to reference Application.ThreadException in my application to make an addhandler, but I also am using imports growl.connector which has a growl.connector.application method. When I create my addhandler:AddHandler Application.ThreadException, AddressOf ThreadExceptionHandler
And I get "ThreadExecption is not an event of 'growl.connector.application'"
I have an application written in .NET 4.0 that i compile into a DLL file. I want to be able to use this DLL file in a Windows Forms .NET 2.0 application. I don't need the application to really interact much, except just passing a couple string values to the 4.0 DLL. The DLL is pretty much a bunch of Windows which i converted to UserControls and i just need to be able to reference them to display the UserControls from the 2.0 application without having to use a different exe and having to package them separately.
What is the best way to do this? Because when i try to add the reference to the DLL to the 2.0 application, it gives me and error saying the DLL is built in a newer version of .NET so i can't do it that way. Is this where a COM object would come in?
Here is code in a form that is called from the "main" form:Imports
System.Data.SqlClient
Imports
ClassObjects
Imports
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frmOdyssey is the main form, from which frmSearch is called. After the above processing, I want to go BACK to frmOdyssey to process the FilFilterGrid sub on the Grid defined on frm Odyssey. I will be assigning a new DataSource for the Grid, which will be "selected down" by the strFilter. The above code works with no issue whatsoever in "Windows Application" mode. However, if I switch to "Class Library" mode, I get
an error on the last line of the last Sub, telling me "Reference to a non-shared member requires an object reference". If I uncomment the "Dim f As New frmOdyssey" line, and change the "frmOdyssey" to "f" on the next line, the error goes away, but then the process doesn't work, because the "select down" does not happen. I don't know why, except that "logically" I don't want a "new version" of the frmOdyssey. I want to update the existing form.
Anyone know of a library/assembly that can be used to generate a PDF from within a .net application.I know there are free PDF 'printer' drivers that could be installed separately but is there anything that can do it directly from within the application? For example a DLL that I can deploy with my application.
View 2 RepliesI'm trying to acces an application variable from my class library
i.e : my varaible contain the connection string initailized in application start method
Application("ConnectionString") = System.Configuration.ConfigurationManager.AppSettings("ConnectionString")