Visual Basic

Finding focus on windows forms

6-Apr-04 6:10

The easy way to uninstall an app is to use the System.Management classes and WMI. You would be using the Win32_Product class. The downside is it won't do a silent uninstall.

The hard way would be to use the Windows Installer API's. The documentation starts here[^]. The upside of using this method is that you get total control of how the uninstall behaves. The down side is it's complexity.

I hope your doing in in VB6 and not VB.NET. Trying to write a program in VB.NET to uninstall the .NET Framework is never going to work since you cannot uninstall something that your program absolutely needs in order to run...

RageInTheMachine9532

Multilingual in VB6

adarsh_sebiz6-Apr-04 3:47

adarsh_sebiz

6-Apr-04 3:47

Hi all..

Can anybody there guide me regarding how to implement multilingua support in Visual Basic 6?
Basically, i m trying to build an application in which i could give different language options, and depending upon selected language option i would be able to change my application layout(in terms of language).

NOTE:
smaple codes will really help me a lot, as i m new in this filed.

Thanks in advance.

Regards,
ADARSH

David O6-Apr-04 0:47

David O

6-Apr-04 0:47

I am trying to code a generic function under the Click event of an Edit > Copy menu. It needs to get the text value of the current textbox (or whatever) and place that value on the clipboard. I tried the following:

Clipboard.SetDataObject(Me.ActiveControl.Text)

However, the window form in question actually contains a grid and a second windows form container which has the actual text boxes on it. As a result, "ActiveControl" is in fact the containing control.

As a convert from a 4GL to VB.NET, I am struggling with the basic issues like getting the currently focused control. Most of the examples are so basic as to be useless in a real application. Any suggestions would be greatly appreciated.

Regards
David

Re: Finding focus on windows forms

Member 10089689-Apr-04 4:55

Member 1008968

9-Apr-04 4:55

Hi David

Try this:

Dim a module level string
e.g. Dim CurrentCtrl as string

In the GotFocus event of each control that you need to get the text, put the following code:

CurrentCtrl = Form1.ActiveControl.Text (replace Form1 with actual form/location name)

Then from your menu you can send the value in CurrentCtrl to the clipboard.

Below is some code to give you the idea, if you need it.

On the form is a frame; inside the frame are 5 text boxes. There's a menu with two options: To Clipboard and From Clipboard. Also on the form is a label: just displays what's on the clipboard when From Clipboard is selected from menu.

**********************************
Option Explicit

Dim CurrentCtrl As String
Dim LastCtrl As String

Private Sub Form_Activate()
Text1.SetFocus
End Sub

Private Sub mnuFromClipboard_Click()
Label1.Caption = Clipboard.GetText
End Sub

Private Sub mnuToClipboard_Click()
Clipboard.SetText (CurrentCtrl)
End Sub

Private Sub Text1_GotFocus()
CurrentCtrl = Form1.ActiveControl.Text
End Sub

Private Sub Text2_GotFocus()
CurrentCtrl = Form1.ActiveControl.Text
End Sub

Private Sub Text3_GotFocus()
CurrentCtrl = Form1.ActiveControl.Text
End Sub

Private Sub Text4_GotFocus()
CurrentCtrl = Form1.ActiveControl.Text
End Sub

Private Sub Text5_GotFocus()
CurrentCtrl = Form1.ActiveControl.Text
End Sub
*******************************************

Oh, by the way the module variable LastCtrl can be utilised by much the same code as in the GotFocus except it goes in the LostFocus event of each control

Anyhow this should give you a start in the right direction, I hope.

Budgieboy

Re: Finding focus on windows forms

David O11-Apr-04 23:29

David O

11-Apr-04 23:29

Thanks for that. However if you have a lot of fields, this will result in a huge overhead in code. Or alternatively, I could place this in a class and inherit, but that still has issues. From this and other forums where I posted the question, it seems like VB.NET doesn't have what I was looking for. However another source provided a lead which resulted in the code below:

    Private Function ClipboardCopy()<br />
<br />
        Clipboard.SetDataObject(GetActiveControl(Me).Text)<br />
<br />
    End Function<br />
<br />
    Private Function GetActiveControl(ByVal container As IContainerControl) As Control<br />
        Dim control As control<br />
<br />
        control = container.ActiveControl<br />
        If TypeOf control Is IContainerControl Then<br />
            Return GetActiveControl(CType(control, IContainerControl))<br />
        End If<br />
        Return control<br />
<br />
    End Function

This gives the result I was looking for.

Regards
David

How to add popup menu item in Windows Explorer popup menu

Mayank Kumar5-Apr-04 21:31

Mayank Kumar

5-Apr-04 21:31

Hi,
I'm making an application in VB and I need to have an option to open it on the Windows Explorer popup menu(show's when you right click a file) with all files but one(the file type my program actually reads) sort like winzip does. and for one special file type(the file type my program actually reads). I also need some special options on it's popup menu.
If anybody knows then please reply asap.
Thanks and Regards
Mayank Kumar

Re: How to add popup menu item in Windows Explorer popup menu

Hesham Amin5-Apr-04 22:15

Hesham Amin

5-Apr-04 22:15

check the Shell programming section in codeproject
you'll find samples about extending the right click menu.

Windows Service for Internet time logging

DHARMA.R5-Apr-04 19:37

5-Apr-04 19:37

Dear All,

I am in such a need of creating a Window service for logging my internet In and Out timing.

That means When I connected to the internet my windows service should log the time of entering.
At the same time it should log the time of leaving also.

One more thing is that windows service should send the report to the dedicated mail account periodically.

Can anyone detail me how to create a Windows service to meet my req ?.

Your help w'd be appreciated.

Thanks

DHARMA.R

Milton Karimbekallil5-Apr-04 20:43

Milton Karimbekallil

5-Apr-04 20:43

hi
I don't understand the first requirement of logging the entering time and leaving time. Coz if it is a web server then it will be online all the time right? Otherwise if u are talking about the time of logging into ur website then u can use ur client application to log the log in and logout time. Normally Login and Logout time are entering using the client app right?

Second requirement is straight: periodically send mails to various clients. For this you can use the windows service or it will be more easy and efficient if u goes for DTS Packages in Sql Server provided ur database shud be MSSQL Server. Simply create a DTS package and schedule to execute it periodically.

rgds..mil10

Dave Kreskowiak6-Apr-04 0:51

6-Apr-04 0:51

If you using a dialup connection, it's not so hard just monitoring IP for that connection. But this method won't work if your on a cable modem or some other permanent connection.

If you are looking at monitoring network traffic, then it will be an inaccurate accounting of the time since there, for the most part, is no traffic while your staring at the page you just downloaded.

A better method would be to monitor the task list for any instance of IEXPLORE or what name is being used for Netscape or whatever browser your using. If the instance is in the task list, you must be browsing the internet or at least viewing a page local to the machine. You would also have to monitor for any FTP client you happen to be using...

Another idea would be to write your own proxy server. You would be able to monitor all your connections independent of the client app that your using at the time, but again how do you know when your not viewing pages anywmore since the connection is only there when you are actually downloading something?

RageInTheMachine9532

DHARMA.R6-Apr-04 4:00

6-Apr-04 4:00

Hi,

Thanks for ur interest.

This is what I need exactly.

I have a Pc with internet connection (Dialup connection).
My friends and family members are using that Pc for browsing websites.

I'd like to log the everyone's total time of internet using.
This will help me to track who uses internet connection more.

For eg. consider this situation (Assume everyone has seperate windows user account)

1.Friend1 login to Windows.

2.He connected to the Internet using dialup connection at 6.00 P.M

3.He browsing web pages.

4.Friend1 disconnect the internet connection at 8.00 P.M

Our Windows service should record the foll. details.

==================
Date : 06/04/2004
User : Friend1
In : 6.00 P.M
Out : 8.00 P.M
==================

Could u understand my prob.
Can u suggest me the soln. for this ?

Thanks in advance.

Dave Kreskowiak6-Apr-04 5:51

6-Apr-04 5:51

I already suggested methods of doing this, but it's not as easy as you may think it is. The only way to surely track that a connection is alive is if it is a dial-up modem connection. Since this type of connection is temporary and is not alive the entire time the machine is up, you can watch for changes in the IP stack, like gateway changes, that will occur when the connection is made and dropped.

If your using a cable modem or some other permanent connection, then this method will not work since the machine is connected all the time. You would have to monitor the process list for the various web browsers and FTP clients (by name!) to see how long the person is online.

RageInTheMachine9532

DHARMA.R6-Apr-04 20:25

6-Apr-04 20:25

Hi,

Thanks for ur informations.
Its v interesting.

Say, I am a new bee to VB.NET as well as Windows services.
Can u suggest me any resources reg. this.
Thanks

DHARMA.R

Dave Kreskowiak7-Apr-04 1:19

7-Apr-04 1:19

Writing a Windows Service and monitoring the processes list are not exactly newbee projects. But you can search Amazon and checkout the dozens of books on VB.NET for every level from beginner to advanced programmers and cookbooks.

RageInTheMachine9532

DHARMA.R7-Apr-04 18:00