Visual Basic

2-Jun-08 12:53

You want to download a webpage given its address? If so, see this page.[^]

Using net send in VB.net

Charles Hardy2-Jun-08 10:09

Charles Hardy

2-Jun-08 10:09

I am writing a simple program in VB.net to use netsend to be able to send a message to all the users on the domain when I need to restart the server or other things like that. I have already turned windows messaging on on all of the computers, however, I can not figure out how to send the message on a button click in my program. It is a very simple windows form program with two text boxes called "CompOrDomainName" and "Message" and three buttons, "Send", "ClsButton", and "ClrAll". I have programed "ClsButton" and "ClrAll" to function the way I want, however I cannot figure out how to get "Send" to send through net send. Any help would be great. I have included the code so people can help me figure out what code I still need to be able to end.

Public Class NetSender

    Private Sub SndButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SndButton.Click

    End Sub

    Private Sub ClsButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ClsButton.Click
        Message.Clear()
    End Sub

    Private Sub ClrAll_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ClrAll.Click
        Message.Clear()
        CompOrDomainName.Clear()
    End Sub
End Class

jzonthemtn3-Jun-08 11:41

3-Jun-08 11:41

Looks like you have everything but the "send" part, so try something like this:

Private Sub SndButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SndButton.Click    


NetSend.StartInfo.WorkingDirectory = "C:\WINDOWS\system32\" 
NetSend.StartInfo.RedirectStandardInput = True 
NetSend.StartInfo.RedirectStandardOutput = True 
NetSend.StartInfo.FileName = "cmd.exe" 
NetSend.StartInfo.UseShellExecute = False 
NetSend.StartInfo.CreateNoWindow = False 
NetSend.StartInfo.WindowStyle = ProcessWindowStyle.Hidden 
NetSend.Start() 


NetSend.StandardInput.WriteLine("net send " & CompOrDomainName.Text & " " & Message.Text) 
NetSend.StandardInput.Flush() 
NetSend.StandardInput.Close() 
NetSend.Close() 


End Sub

What the code is doing is opening a command prompt and issuing the net send command to it. This article[^] may provide further insight.

Charles Hardy5-Jun-08 6:06

Charles Hardy

5-Jun-08 6:06

That you for that, but unfortunately I am unsure how I would go about declaring "NetSend".

jzonthemtn5-Jun-08 6:12

5-Jun-08 6:12

Oh, sorry! NetSend is of type System.Diagnostics.Process. So you'd have:

Dim NetSend As New System.Diagnostics.Process()
NetSend.StartInfo.WorkingDirectory = "C:\WINDOWS\system32\"
NetSend.StartInfo.RedirectStandardInput = True
NetSend.StartInfo.RedirectStandardOutput = True
NetSend.StartInfo.FileName = "cmd.exe"
NetSend.StartInfo.UseShellExecute = False
NetSend.StartInfo.CreateNoWindow = False
NetSend.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
NetSend.Start()

NetSend.StandardInput.WriteLine("net send " & CompOrDomainName.Text & " " & Message.Text)
NetSend.StandardInput.Flush()
NetSend.StandardInput.Close()
NetSend.Close()

How to prevent the NumericUpDown from recursively calling

Charles Hardy5-Jun-08 8:14

Charles Hardy

5-Jun-08 8:14

Thank you, that worked perfectly.

Dominick Marciano2-Jun-08 9:47

Dominick Marciano

2-Jun-08 9:47

I'm writing a program that is used to enter data about different rooms in a home. On the main form there is a NUD and a combo box. The NUD is used to store the room numbers and the combo box has a list of room names. When the program starts the the NUD has a value of 1 (representing the first room) and the CB is empty. The user selects a room name from the CB and the room name is stored in an arraylist.

Now, when the user increases the NUD value the CB is cleared. Now if the NUD value is decreased then the previous room (Room 1) name is loaded into the CB. My problem is this, if the user tries to increase the NUD value again and the CB box is still empty (user did not select a room name) then the NUD value is decreased (you can't move on to the next room until a room name is entered for the current room number). However when I decrease the value of the NUD, the NUD.ValueChanged method is called again. Is there a way to prevent the NUD.ValueChanged method from being called when I decrease it's value in the code? Here is some pseudocode of my problem:

Sub NUD.ValueChanged

If CB.Text = "" then
  NUD.Value -=1  'This line makes the NUD.ValueChanged method call itself.
Else
  CB.Text = ""
End If

Re: How to prevent the NumericUpDown from recursively calling

Chinners2-Jun-08 23:40

Chinners

2-Jun-08 23:40

There are 2 ways I can think of - a dirty way and a tidy way.

The tidy way would be to remove the event handler:

RemoveHandler Nud.ValueChanged, Addressof(YourRoutineHere)

Alter the value, then

AddHandler Nud.ValueChanged, Addressof(YourRoutineHere)

The Dirtyway would be to have a global boolean, called "NudManuallyChanging" or something like that. Then:

If CB.Text = "" then
  NudManuallyChanging=True
  NUD.Value -=1  'This line makes the NUD.ValueChanged method call itself.
  NudManuallyChanging=False
Else
  CB.Text = ""
End If

Then, in your event handler for NUD.ValueChanged:

Sub NudValueChanged
  if NOT NudManuallyChanging then
    Your Code Here
  end if
end sub

Its a bit dirtier, but possibly easier to understand.

Calling a .dll / .exe during compile

Trevortni2-Jun-08 7:40

Trevortni

2-Jun-08 7:40

Okay, so if the answer for this question is out there somewhere (which I'm assuming it is), it's hiding between skads of tutorials on how to compile and use .dll's for normal use. I haven't quite figured out how to prune the responses I get, so I'll ask if anyone here has the answer I need while I continue to look.

The question is: is it possible to get output from a precompiled .dll during build time? I suppose output from an .exe would work as well, but I'm specifically wanting to call a .dll and include the output in the final executable itself, without actually including the .dll (this is for usage in a project in which the .dll does some encoding of data I want to be secured and hard-coded, so I'd prefer to leave the .dll out of the final project).

Any advice?

Re: Calling a .dll / .exe during compile

jzonthemtn3-Jun-08 11:53

Re: Calling a .dll / .exe during compile

3-Jun-08 11:53

I know I can't give an answer, but the obfuscator I use allows for embedding three strings (labeled Application Name, User Name, and Serial Number but you could use them for anything) into the obfuscated program. You can then access those values from the program. If what you want to store is a relatively short string something like that might be an option.

Trevortni4-Jun-08 6:17

Trevortni

4-Jun-08 6:17

That isn't quite what I was looking for. I ended up settling for writing a second application that writes the information I need to a text file, which I then embed into the main application. Not exactly the elegant solution I was looking for, but I guess if I can script it all together, it'll be ok.

Crystal Reports license

Member 36439612-Jun-08 3:17

Member 3643961

2-Jun-08 3:17

Hi,

I have Crystal XI release 2 installed on my pc. I want to use a crystalreports in a windows application.VS2005 comes with crystal components and I want to use these for the application. Will there be a license issue and any prerequisite and will I need to reference different dll’s? The client doesn’t want to pay an arm and leg and a license will be a big No.

Re: Crystal Reports license

Tim Carmichael2-Jun-08 4:37

Tim Carmichael

2-Jun-08 4:37

Here is my thoughts...
If you want to use a Crystal Report within VS2005, then, develop the report with VS2005 itself. That way, you should not have issues with multiple DLL's.

If the report is developed with VS2005, then there should be no licensing fees for the use of Crystal.

Tim

Re: Crystal Reports license

ChandraRam3-Jun-08 1:08

ChandraRam

3-Jun-08 1:08

Crystal Reports lets you create a distribution package for installation on other machines. Your clients will require the full application only if they need to create / modify the report files themselves.

HTH

Re: Crystal Reports license

Anubhava Dimri6-Jun-08 18:23

Anubhava Dimri

6-Jun-08 18:23

you can add module of Crystalreport_x86.msm file with your setup for crystal report license.

<big>Regard</big>

Anubhava Dimri
anubhava.prodata@gmail.com
9250168195

software licensing

duo!@#2-Jun-08 3:15

duo!@#

2-Jun-08 3:15

Hi guys i'm not sure if this is surpose to be the subject title. I'm sorry as this is not a programming

question. But i have to ask. Do i have to pay MICROSOFT for software developed using visual

studio 2008 ,and how do i sell them to end users(inspired by flash & 3d studio Max). How and why should

I license the software developed in visual studio is there anything else i have to do besides

licensing. I searched for these answers through the web till i got an unbearable headache(it hurts).

Ray Cassick2-Jun-08 4:38

Ray Cassick

2-Jun-08 4:38

Nope, there is no royalty system in place at all to do this.

There are some licensing restrictions I believe if you are using the Express or Academic versions if I remember correctly with regards to producing commercial software using those products.

FFRF[^]

Tim Carmichael2-Jun-08 4:40

Tim Carmichael

2-Jun-08 4:40

If you develop code in VS2008 and use no external components, then there should be on additional licensing required.
If you use external components, the licensing required will be determined by that component's vendors.
How you choose to license the application is up to you.

Tim

duo!@#3-Jun-08 0:51

duo!@#

3-Jun-08 0:51

Sry man but i dun get it ,now ur confusing me. What do u mean by external components. Also i want to know how a there programs that are cross platform what IDE do they use to make them.

Do u know how to package a program to .exe

Thanks