How To Call A C++ Dll File From Visual Basic 2010
Mar 9, 2012
I'm using Microsoft Visual Studio 2010 Express: the C++ and VB versions.
There is some VB code that forms the body of a program, and all the GUI.There is also some C++ code that does some fast processing (lots of loops).
I am trying to call the C++ code, compiled as a dll, using:
Private Declare Sub CalcGraph Lib "Model.dll" ()
And at the moment keep getting the error: Unhandled exception has occurred in your application. Unable to find an entry point named 'CalcGraph' in DLL 'Model.dll'I'm fairly new to programming, so please be patient with me That said, I'm prepared to do the leg-work, and have already spent quite a while reading around on this and other sites. Nothing seems to match quite well enough to help me understand what's going wrong.
View 3 Replies
ADVERTISEMENT
Oct 23, 2010
I am a novice in programming and wrote several simple Windows Forms applications. I need to play mp3 file in Windows 7 x64 application.
Could you, please, explain in simple words, how to call MediaElement.Play() method from Windows Forms?
View 8 Replies
Apr 28, 2011
i am beginer in visual basic.i am developing a software which require to insert and view from local database of sql server
i wrote connection string in class like this :
Private connectionstring As String = "provider=sqloledb.1;" & "data source=harampak.sdf ; conntiontimeout = 15 ; integrated security=sspi but error is occuring , saying that sql server doesnt exist , invalid connection string the database file is on the same folder of the project file
View 4 Replies
Oct 11, 2011
My project is using Visual Basic 2010. I have a pure text save file with the following format:
num_TEC|1
num_STR|0
num_PER|0
num_MEC|1
num_KNO|1
num_DEX|1
I'm trying to load the data by using the first column as the object name and the second as the value. I've had some success with the following (skipping some basic IO lines):
prop = FileReader.ReadLine().Split("|")
tempvar = prop(0)
If TypeName(Me.Controls(tempvar)) = "NumericUpDown" Then
Me.Controls(tempvar).Value = prop(1)
I have a problems with this because I have some objects in panels or group boxes and Me doesn't reach into them.
Is there a way to just strictly reference an object with a variable? I'd love to assign the first column into prop(0) and just say
if TypeName(object(prop(0))) = "NumericUpDown" then
object(prop(0)).Value = prop(1)
View 1 Replies
May 10, 2010
How can I request permissions to use My.Computer.FileSystem.SpecialDirectories.MyDocuments for writing?
View 1 Replies
Jan 19, 2010
Is there a way to call a procedure in Visual Basic (.net) with a variable name? For example, the variable strColour can be one of 10 pre-defined values, green blue black white red pink orange yellow indigo purple. How to handle each one is in it's own Sub Routine, colgreen, colblue, colblack and so on.
I can use a bunch of if..then..else and select case, but what I'd like to have is something like VBA Excel's Run "col" & strColour
View 5 Replies
Dec 6, 2010
HOW i insert image in microsoft access and how to call in visual basic
View 1 Replies
Sep 22, 2010
As you read this, though I have pretty good experience in C++ and Java, eep in mind that I am a complete beginner when it comes to VB. :)Here is one idea of what I want to do:
Option Strict Off
Option Explicit Off
Imports System
[code]......
View 1 Replies
Feb 17, 2010
I am working to make a function that will update the back color of a text box based on multiple variables values. I can write the code to do the calculation, but I am not sure how to make the function realize which text box to update (as I will have about 30 different boxes). Below is the code that I have for each box so far, but I will have quite a few more, and would rather use a function to reduce the amount of code, and also make it cleaner as well.
If sngPreviousPrimaryPropertyTotal >= sngPrimaryPropertyTotalCost Then
txtPreviousPrimaryPropertyTotal.BackColor = ColorProgramLightGreen
Else
txtPreviousPrimaryPropertyTotal.BackColor = ColorProgramLightRed
End If
[Code] .....
Or is there a way that I can tell the function that it's updating the text box that call the function in the first place? Say if txtBox1 has updated text and calls the function, then the function 'knows' to update txtBox1, but will update txtBox2 when it's called by txtBox2.
View 3 Replies
Nov 4, 2011
In my VB.net code i have:
cmd.CommandText = "SELECT * FROM [strfg].[dbo].[Myfunc] (@MyParam)"
Dim myparam As New SqlParameter("@MyParam", a)
cmd.Parameters.Add(myparam)
The function (runnig on SQL server) returns a table with four columns, one row.How do I call this function from Visual Basic? cmd.ExecuteScalar() is obviously not correct. In c++ I use a recordset. What is the equivalent in vb? Does anyone have a short example?
View 2 Replies
Aug 5, 2011
Does anybody know which version of Visual Studio 2010 contains the full set of Visual Basic SharePoint Templates? I am about to embark on a project to create Visual Web Parts to be used in a SharePoint report.
At the moment I am using Visual Studio 2008 and even though the WSPBuilder is installed none of the relevant SharePoint templates are present.Having searched SO and the web, most advise to install the templates via the Visual Studio command prompt: devenv /installvstemplates
Alas the Visual Studio command prompt is also missing from my VS2008 installation.So, the question remains: which version of VS2010 contains what I need for pain-free SharePoint development? There is a rather large price different between VS2010 Professional and VS2010 Premium, so can anyone tell me if the cheaper version (VS2010 Professional) contains all the Sharepoint templates?
View 3 Replies
Nov 25, 2009
I am just wondering how I can add Direct X references to Visual Basic in Visual Studio 2010 Beta 2. I cant find them in the .NET reference list, or the reference list, or anywhere. I downloaded the Direct X SDK for August 2009, but I can not add the .dll files to the reference list. Is there anything I can do to add them? I need the references for programming reasons.
View 5 Replies
Jan 15, 2012
I want to use "OpenGL" in my project. Is it possible to associate it with "Visual Basic" application developed in Visual Studio 2010? If yes then how can we do it.
View 1 Replies
Apr 20, 2012
I have a project in visual basic 2010 and want to convert it to visual studio 2010 so I don't have to chose the "open with" every time. Is there a tutorial on how to do this?
View 4 Replies
Jun 19, 2009
Whether I am using VB 2008 Express or VS 2010 Beta 1 Visual Basic, I get the same error: "Debugging information for 'EXCEL.EXE" cannot be found or does not match. Cannot find or open the PDB file" I have filled in the Debug Tab information: Start external program: C:Program FilesMicrosoft OfficeOffice12Excel.exe
[Code]....
View 2 Replies
Mar 9, 2012
To reproduce the error I'm getting:Create a new Visual Studio 2010 ASP.NET web site in Visual Basic, targeting .NET 2.0Type "Public Property Test As String" Observe "Visual Basic 9.0 does not support auto-implemented properties." error Visual Studio 2010 is happy to use VB 10 against .NET 2.0-targeted Windows Forms applications, this only appears to be an issue with ASP.NET.Is there a way to force Visual Studio 2010 to use VB 10 when targeting .NET 2.0?
View 1 Replies
Jul 6, 2010
have just overlooked something somewhere...I am writing VB.NET stuff in VS2010 on Windows 7 64-bit. It seems to build by default for a 32-bit target, how to I tell it to make a 64-bit executable?
View 2 Replies
Nov 6, 2011
Dont be afraid to spam the thread with things you can create.The more the better!
View 2 Replies
Oct 2, 2010
When trying to import CrystalDecisions.CrystalReports.Engine, and CrystalDecisions.Shared. I'm getting a green line. What might be the problem?
View 3 Replies
Mar 16, 2010
I just downloaded the Visual Studio 2010 Express for Mobile Phone. C# is the only language available. Will Microsoft add Visual Basic as well? When?
View 5 Replies
Jan 24, 2011
How do you extract source code from a VB.NET .EXE file?
View 3 Replies
Sep 16, 2011
I'm using Visual Studio 2010 and I'm working on a windows application form. I'm struggling with our database. I can connect and retrieve Data in the Grid View. But I dont want to display the records I want to put a specific on ina specific row column in a variable,in short I want to work with it.My DataSet is called ProductionDataSet. The Table is called Employee and has four column called Employee, First_Name, Last_Name and Status.How to I now store lets say the entry in colum 4 and row 5 in the variable x?
View 1 Replies
Jun 27, 2011
druring my search how to display a picture from a webcan using vb I found in some treads the following code:
Const WM_CAP_START = &H400S
Const
WS_CHILD = &H40000000
[Code]...
View 2 Replies
Jan 4, 2012
ok im making a program where i add exe files to my project like the trial install of photoshop and all the adobe projects. So wot i want to do now is add a code in so when i push the button install adobe photoshop fire works ect it will im useing this code here to do that
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
My.Computer.FileSystem.WriteAllBytes("YourExeFile.exe", My.Resources.Webcam,
[code].....
View 4 Replies
May 1, 2010
i am use visual basic 2010i have API gateway with username and password from provider.buthow to use this? means how to send SMS from my visual basic application
View 3 Replies
Apr 5, 2012
how to SQL Command and fill Result in ComboBox? in visual basic 2010 my DataBase
Dim SqlCon As New SqlClient.SqlConnection("Data Source=DIG-PCDIGSER;Initial Catalog=;Integrated Security=True") Dim ConDatBas As New SqlClient.SqlConnection("Data Source=DIG-PCDIGSER;Initial Catalog=DigSMSystem;Integrated Security=True")
View 7 Replies
Jun 21, 2011
I checked all links in google,youtube,bing, msdn for source code on how to send "free "sms using visual basic 2010 (visual studio 2010). I want it to be completely device free means no mobile just an ordinary user a computer a modem . and visual studio 2010 for the programmer.
View 1 Replies
Feb 12, 2012
how to send SMS with provider i am using visual basic 2010
View 2 Replies
Jan 4, 2011
I am trying to create a tool to make terrains for my game and would like to develop it in Visual Basic Express 2010. I want to use OpenGL but am having trouble.1. Will VB support OpenGL 3.x or higher?
View 6 Replies
Mar 22, 2012
How can I add my HTML code to my VB.NET application. I know about making a .html file and calling it from WebBrowser1.Navigate, but the problem with that is, I don't want to have a separate file. I would like everything to be embedded into my vb.net source.
View 39 Replies
