How can I get this interface programed into VB?Here's the interface:
USB data sent from the PC:
Byte 1: Scan Quiz, with value of 0x55
Byte 2: Number of bytes to receive, with value of 0x02.
Byte 3: Mask, with value 0xFF to enable the first 8 quizzers.
Byte 4: Mask, with value of 0xFE to enable the next 7 quizzers
[code].....
i have my app code which programed on 32 bit now when i copy it to 64 bit and try to open the project i get this error Quote:Type library importer encountered a property getter 'sessionPlaylistCount' on type 'WMPLib.IWMPNowPlayingHelperDispatch' without a valid return type. The importer will attempt to import this property as a method instead.TlbImp
View 3 RepliesI have this code
Public Interface TagRead
Sub TagChanged(ByVal tagType As String(), ByVal serialNumber As String())
Sub LastError(ByVal err As String)
End Interface
and say i called it like this
dim s as new TagRead
i got an error that new cannot be use on interface?
So I need my program that will read some cells on excel and then dynamically create textboxes on the form to hold the cell data. Everything goes along swimmingly, until vb refuses to create new textboxes saying "new cannot be used on an inteface." I figure this is something to do with the Microsoft.Office.Interop.Excel... So how can I dynamically create new textboxes now?
The relevant lines of code
Imports Microsoft.Office.Interop.Excel
Dim newqlabel As New TextBox
I wish to have the main screen just like the Kaspersky main screen, in my applications. That is, I'm really impressed by those tabbed menus. I mean, the user will select the menu from left side and corresponding menus and details is shown in right (see the pic below). How can I do that ?
View 9 RepliesHow do we automate the process of deriving an Interface from our already-designed class?In other words, I wrote in completion my entire class and now desire to automatically construct its interface. EG: Say my class's filename is "Car.vb", I now desire "ICar.vb" derived from the class "Car" that I've written.
View 9 Repliescreating a COM component Instance like this for supporting multiple version of COM components
Creating Instance
Private _cmObjct As Object
Public Property CreatingInstances() As Object
Get
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at the same time how to declare this method without referenced dll SSDP is an interface so how to declare this interface for my usage is this Correct ...?
Error: Dim d as Object = Activator.CreateInstance(Type.GetTypeFromProgID("SecureTronics.SSDP"))
I am working on a sports management game and have already received some terrific help here with some XNA stuff. I now need some help for the user interface though. This game is very menu-centric, with loads of stats and tables and such. It is therefore paramount to get it right!
So far I have been doing all of the work on my 24" monitor at 1920x1080. Whilst the form is 1920x1080, the menu fits within a 1280x1024 top left region of the form. When I run the game on my other computer, which has a 19" monitor at 1280x1024, I was expecting a large chunk of the form to be cut off but the menu to be all visible. Well, it is all visible but things screw up. Different controls will overlap and such. I'm using Krypton Components for most of the UI and some of the text boxes seem to shrink vertically so you can only see less than half of the text. I have no idea why, they won't all do it.
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VB 2010 Express + MS Access 2003
today I successfully configured an interface to work with a test database I created in MS Access 2003. The database consists of only 8 records with 10 fields.
I used the basic built-ins with VB 2010 to build the interface in a simple form which shows only 6 of the 10 fields. It all seems to work well, that is the connection string built correctly, and I can run the program and view the individual records. My trouble is that when it goes to the 1st record it's actually the 3rd record in the database. And when I go to the last record it's actually the 2nd record in the database and the next to the last record is actually the first record in the database.
why the program seems to start at the 3 record and shifts the first two records to the end. All the records show up, it's just that they are somewhat out of order.
Interfacing fingerprint to visual basic 2008 or 2010..using serial port...the use of fingerprint is for password only..actually my thesis concept is like electronic locker..
View 3 RepliesI'm trying to hone up on my (beginner) coding skills & I would prefer that the the 'Designer coding window', not the 'Design window', wouldn't interfere with these studies. Sometimes it's there & sometimes it's not. I don't understand it at this point & would prefer it wasn't there. All I need is the 'Design window' & the 'regular coding window'.
View 2 RepliesIn VS2008, I can stub out interface members with the following code using TextSelection to insert the implement line and then "simulate" the Enter key by inserting a new line. However, it doesn't work anymore in VS2010.
CodeClass cclass = {Target_Class};
TextSelection txtSel = {After_Class_Declaration_Line};
foreach (string i in interfacesFullName)
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how to create a user interface in a game such as the application XFire using Visual Basic?
View 3 RepliesI'm working on a design project where I have to use a Graphical User Interface that contains a drag and drop form. It consists of having a window dropped on a wall. Both of them are images to scale. I would like to know what kind of code I would have to use to show the x and y coordinates of one of the points of my window when dragged so when I drop it, I'm dropping in it on the desired coordinate of the wall.
View 2 RepliesThis is a followup to this thread, where I'm trying to draw two sets of dots using HatchBrushes to create VS2010-like interface. If you take a look at the zoomed image of the IDE background (blue with dark and light blue dots): that is what I'm trying to draw using GDI+. In the previous thread ForumAccount find the correct HashStyle to use (Percent20), but there is a problem: I need to draw two sets of these hatchstyles: once with a slightly darker color and once with a slightly lighter color, at an offset of one pixel downwards.
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I was wondering if I could elicit some tips on how to procede with an interface design approach.That is. What is a good way to go about establishing a "work area" where one can have multiple "floating forms" in this area.Can you have a form which occupies the entire windows desk top and the other forms "float" in this space? the "floating" forms would need to interact with each other where pressing buttons etc on them would affect other forms on the "workspace") Or what would be a good way to start accomplishing that? Or is there a better way to get the same effect?
View 4 RepliesI'm trying to make a .dll that contains a lot of basic functionality that a program can use. Currently i am trying to use interfaces to make a lot of this functionallity independend of the program using it but i hit a snag. The Basic idea is that a programmer will create his own object using the interface discribed in my .DLL file. Then implements those functions as he likes. He can then instanciate a controller (found in the same DLL) and sends his custom object implementing the interface to that Controller. The controller can then be started and will take over all the work. I do not know what type of object is send to the controller and idealy i want to program it in such a fashion that i shouldn't care as long as the object send implements that interface.In code I am trying to achieve the following: (quite simplyfied)
.Dll:
Code:
Public Interface MyInterface '<----Decleration of the interfaceFunction GetData() As Integer
Function SetData(Data As Integer)
end interface
[code]....
this propperly. I know that the second i set the interface adaptor in the Controller VS comes nagging that it can not be converted to a "MyInterface" Class. Obviously i am doing something wrong. I can change the datatype that the controller expects to the "MyController" type but that would completely ruin the whole idea of flexibillity. I am hoping someone sees what i am trying to do and can point out where i made the thinking error.
Is this where i would post a picture of my interface and get feedback on changes for easier use? If not is there someplace on this forum or any other forum to do this?
View 1 Repliesin the codebase i'm maintaining there is an old interface. Let's call it IFoo. It pretty much became obsolete and replaced with the Interface INewFoo with a change a few weeks ago, but for backwards-compatibility purposes, i wrote a wrapper class which implements INewFoo and takes an IFoo in the constructor.To clarify, consider the following code.
Public Interface IFoo
Sub DoStuff()
End Interface[code].....
For both interfaces, the implementations are loaded by scanning a few assemblies with StructureMap. Now, let's get to the bad things. Most implementations for the old interface were put into forms for reason i can neither understand nor change. Because those tend to be displayed and disposed, i have to create a new instance every time i use ObjectFactory.GetAllInstances(Of IFoo). Thats still no problem, but i'd like to register a INewFoo-Wrapper for each registered implementation of IFoo, so that i can just use ObjectFactory.GetAllInstances(of INewFoo) and get all implementations of IFoo AND INewFoo.I can't iterate through the implementations of IFoo and register a wrapper for each one because as far as i can see, you can just register those with instances.Wrong code below:
ObjectFactory.Configure(Sub(config)
config.Scan(Sub(scan)
For Each ass In assemblies[code].....
My question is: Is it possible to register a wrapper for each implementation of IFoo which always creates a new instance of the implementation before creating a new instance of the wrapper?
I want to declare a property as an interface collection of an interface, and I want to instanciate the explicit type later, in the constructor. Something like this.
Public Class LicenseFile
Implements ILicenseFile
Public Property Collection As IList(Of ILicenseFileDataNode)
[Code]....
In short, the question is "Why It Didn't work"? This is a simplified scenario, but It's easy to take a workarround, But I need understand the reason because It's fails.
I'm using interface with relay and interface is connected to computer on COM (serial) 9 pins port. In Visual Studio 2005 I'm using this
SerialPort1.Open
SerialPort1.DtrEnable = True
SerialPort1.Breakstate = True
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Why does an interface override a class definition and violate class encapsulation? I have included two samples below, one in C# and one in VB.net?
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I have an interface class (IUser) which is the interface of class User. Now, i want to put these into an IList but am confused as to how i should declare the IList:Dim userList As IList(Of IUser) = New List(Of IUser) Dim userList As IList(Of User) = New List(Of User) Dim userList As IList(Of IUser) = New List(Of User) Dim userList As IList(Of User) = New List(Of IUser) when instantiating should you always use its implementation; and when using it as a type use its interface?
And when im creating a new user should i use: Dim myUser as IUser = new User?
give me some more detail on the benefit of using an interfaces.
View 8 RepliesCan an Interface contain an Enum?I am using asp.net 2.0. Suddenly my code started having problems when I added an enum to the interface below. In it, LookUpType is an enum.
Public Interface ILookup
Property ID() As Int32
Property Text() As String
[code]....
I have a control that overrides the protected GetService method and assigns it to the IServiceProvider interface:
Class MyControl
Inherits Control
Implements IServiceProvider
[Code].....
I'm struggling to convert this to c#. I've tried implicit v. explicit but I must be getting the syntax wrong.
Let me give a scenario then see if anyone has a solution / work-around.I've got a library (DLL) that contains only classes. In another library, I've got interfaces that the classes in the first library implement. Clients will always reference only one version of the library containing the interfaces (always the latest one) - and only additions will be made to those interfaces (more interfaces / methods). Also, there will only be one version of that interfaces library - so that clients don't need to update references (the interfaces library will be loaded through reflection - so the usual probing rules do not apply, we can only load what the client specifically asks for). The library implementing the interfaces will have multiple versions that different clients reference at the same time.
The problem occurs when a client assembly is referencing an old version of the implementation library. It creates an object from a class type in the implementation library - then passes it to another client assembly. That client assembly uses the latest (and only) version of the interfaces library and attempts to cast the object passed to it with the appropriate interface type. This cast fails with the exception 'System.TypeLoadException: Method X in type Y from assembly Z does not have an implementation'. I expected this exception because in the new version of the interface (same version number - old library clobbered), method X is defined, but even though the old version of the object that is passed contains metadata that says it implements the corresponding interface, the mapping fails on the new interface method X because it doesn't have any implementation in that class.
So, my question is this; Is there a way to have a client use that interface, but only cause an exception when a method that is not implemented on the referenced object is called (rather than the exception being generated when the referenced object is cast to the newer interface type)?By the way - late binding isn't an option because we want intellisense / compile time type checking ... Also, I know how to do this with function pointers and wrapper classes - I was just hoping for a better solution that is more in tune with regular .NET types.
How can i add MenuStrip Look Like Below picture ? My MenuStrip is below picture :
View 1 RepliesQuestion: I have a mailserver written in C# and want to add a web-interface.Now the way I see it, there are two possibilities:
1) Somebody want's to integrate the mailserver on his own webpage/webapp --> needs WebService interface
2) Somebody wants to access the mailserver via a web-interface, e.g. on localhost for configuration, but maybe also for writing and reading email.
What's the best way to unify these 2 demands?I mean with 2), the mailserver basically needs his own webserver, listening on port 80 or n, where it displays a page that e.g. ideally uses the WebService to integrate the webserver funcionality into the integrated webserver-webpage.But said integrated webserver should not interfere with an ordinary webserver,if running on that machine.Also there is the problem of ports and firewalls on the client side and in corporate networks.
In my program I have an interface iGraphable that contains two properties: Abscissa and Ordinate. Then I have an xxxx class (actually more than one) implementing iGraphable and a ListOfxxxx class implementing BindingListView(Of xxxx).To draw graphs I have a Graph class with a property called Data whose type is BindingListView(of iGraphable).Why have I a cast exception when I pass a BindingListView(Of xxxx) to the Data property.
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