Re: Visual Basic DLL - Visual Basic Discussion Boards

Andy H19-Dec-02 23:00

19-Dec-02 23:00

We have a small app written in VB6 for which an ex-developer has not put the source-code into Sourcesafe and consequently the source has been lost. A customer has stated that it is causing an error and we need to see what is going on. Does anyone know of a VB6 de-compiler/dissassembler?

Cheers

Andy

Re: VB6 app de-compiler

Ray Cassick23-Dec-02 7:11

Ray Cassick

23-Dec-02 7:11

I have never seen a good decompiler for VB6 exe's. There have been rumors but I have never seen anything that has worked.

Paul Watson wrote:
"At the end of the day it is what you produce that counts, not how many doctorates you have on the wall."

George Carlin wrote:
"Don't sweat the petty things, and don't pet the sweaty things."

secondary thread to add data to the control

kasturirawat19-Dec-02 14:26

kasturirawat

19-Dec-02 14:26

I’ve a WinForm application and a TreeView control on it. I’m creating another thread to add data to the control. So far I’m able to achieve this behavior, but sometimes secondary thread is not destroyed. I know it is not recommended, but I’d like to know more about my options and why I should not do this.

Thanks

input validation??

drmzunlimited19-Dec-02 4:04

drmzunlimited

19-Dec-02 4:04

hi ,
can anybody help me with the input validation for eg : when we install windows and registration key is asked and
there are 5 textbox and when we input 5 letters in one textbox then automatically it jumps to the next textbox.

and how to limit the letters in a textbox along with the type of data to be entered??

bye
Aakash

Re: input validation??

Nick Seng19-Dec-02 14:50

Nick Seng

19-Dec-02 14:50

drmzunlimited wrote:
and how to limit the letters in a textbox along with the type of data to be entered??

There's a MaxLength property for the textbox which can be used to limit the amount of letters that can be keyed in

And to verify the type of data, you need to do some coding in the Textbox_Change() event

as for your first question, not too sure, but i think you can do some coding on the Change() event as well

Notorious SMC

The difference between the almost-right word & the right word is a really large matter - it's the difference between the lightning bug and the Lightning
Mark Twain

Get your facts first, and then you can distort them as much as you please
Mark Twain

Visual Basic DLL

duvaft19-Dec-02 3:09

duvaft

19-Dec-02 3:09

Hi I have a problem.
How can I create a Visual Basic DLL and to use the methods in a application Visual C++?
How can I export the methods of Visual Basic DLL?

Thanks.
Confused | :confused:

Re: Visual Basic DLL

Nick Seng19-Dec-02 14:44

Nick Seng

19-Dec-02 14:44

are we talking about vb6 or .net?

Notorious SMC

Re: Visual Basic DLL

duvaft20-Dec-02 3:12

duvaft

20-Dec-02 3:12

About Visual Basic 6. Do you have any example ?
Thanks!!!
Smile | :)

;)

Re: Visual Basic DLL

Nick Seng22-Dec-02 14:24

Nick Seng

22-Dec-02 14:24

Nope, Sorry to disapoint, but all my dll experience is with .net Frown | :(

Notorious SMC

Re: Visual Basic DLL

Ray Cassick23-Dec-02 7:15

Ray Cassick

23-Dec-02 7:15

VB6 can not create DLLs that export functions like C++ can. It can only create COM DLLs.

how to control one form from another?

drmzunlimited18-Dec-02 17:36

drmzunlimited

18-Dec-02 17:36

hi,
can anybody help me with this....

how to enable the menu of the parent form from Child form when a button is clicked from the child form.

child form is loaded in between when the parent form is loaded.

thanx
Aakash

Re: how to control one form from another?

CT CHANG19-Dec-02 16:35

CT CHANG

19-Dec-02 16:35

How about this?

 <br />
ParentForm.mnuHello.Enable = True<br />

K-PAX? CHANGE THE WAY YOU LOOK AT YOURSELF, OTHERS & THE WORLD...

unknown control

Anonymous18-Dec-02 12:24

Anonymous

18-Dec-02 12:24

Hi this is my first post here.
im using Vb.net and am a novice.

im going to create a program that i can use like a favourites program for internet addresses and files and folders within windows.
i can handle all of that but i want to use the same kind of control asthe one in the visual studio tool box.

you know the one with, kinda like vertical tabs and when you click one of the tabs it slides up or down revealing all thats in it i.e if you click toolbox it slides up to show you the contents of the toolbox. this is in visual studio.net

basically i dont know what this control is called but i want to use it as it is very neat looking.
also i would welcome any advice on how it is used as i cant seem to find it in any of my programming notes.

thanks
#

Re: unknown control

Rob Graham18-Dec-02 12:43

Rob Graham

18-Dec-02 12:43

You can likely find what you are looking for here[^] Smile | :)

Re: unknown control

Nick Seng18-Dec-02 15:04

Nick Seng

18-Dec-02 15:04

There's a third-party control in vb6 that i used called 'list bar' that does what you want, but i'm not sure if they have a .net version. The company's name is Sheridan, so you might want to check it out

Notorious SMC

Re: unknown control (correction)

Rob Graham18-Dec-02 18:37

Rob Graham

18-Dec-02 18:37

I must have been having a 'senior moment' the control you want is This[^] one, a CP article submission ...

XP IE Icons Set

deanbates17-Dec-02 23:31

deanbates

17-Dec-02 23:31

Little of topic, soz

Does anyone have the XP style Internet explorer navigation icon set, or a good clone?

Any good application icon site recommendations would be appreciated.

Best Regards

Re: XP IE Icons Set

Derek Lakin18-Dec-02 0:25

Derek Lakin

18-Dec-02 0:25

Try http://www.glyfx.com[^]. The free 'Microsoft Set' I think covers what you are looking for.

Derek Lakin.
I wish I was what I thought I was when I wished I was what I am.

Salamander Software Ltd.

Re: XP IE Icons Set

Heath Stewart18-Dec-02 1:43

Heath Stewart

18-Dec-02 1:43

If you have Visual Studio (not just .NET, BTW), you can open "iexplore.exe" or "shdocvw.dll" (can't remember which off the top of my head...probably the latter) and view (and extract) it's resources. You'll find, however, that IE's toolbar icons are not icons at all but a Bitmap resource. You'll have to split these up but it isn't difficult. You can even use MSPaint (yeah, it's actually useful sometimes).

Just thought I'd tell you in case you weren't able to find them elsewhere, although I'd be surprised if you didn't.

"Well, I wouldn't say I've been missing it, Bob." - Peter Gibbons

VB.net & outlook

Nick Seng17-Dec-02 21:06

Nick Seng

17-Dec-02 21:06

Does anyone know how to manipulate outlook( 97 + ) from vb.net? Or is there any good link i can go to ?

Any help would be greatly appreciated

Notorious SMC

Re: VB.net & outlook

Sean Cull1-Jan-03 17:46

Sean Cull

1-Jan-03 17:46

I'm not really sure where you'd look on the web, but Mastering Visual Basic.NET has an entire chapter on manipulating Word, Outlook, and Excel from within VB.NET. Perhaps the e-book is available online somewhere.

Re: VB.net & outlook

Nick Seng1-Jan-03 19:43

Nick Seng

1-Jan-03 19:43

Thanks ! I'll look up the book

Oh yeah, and Happy New Year

Notorious SMC

Strange COM error

ProffK17-Dec-02 20:52

ProffK

17-Dec-02 20:52

In an ActiveX dll have an object called Merge, and its method called Import has rudimentary error handling. The basics of Import are shown below. When I call Import from a client, whether I’m connected to the .dll or to the .vbp, with an incorrect database or table name, I get the following error:

Method ‘Import’ of object ‘_Merge’ failed.

Now if I put a break point on my ‘Err.Raise’ line, execution stops there, but when I single step, it returns to the client project with the above error. If, when stopped on that line, I paste it into the immediate window, I get a good error message.

Could this maybe have to do with the fact that the project used to be an ActiveX .exe, and I just recompiled it as a .dll?

Public Function Import(ExecuteDatabase As String, PropagateDatabase As String, TableName As String, FileName As String) As Boolean

Dim strServer As String
Dim strDatabase As String
Dim flgTrans As Boolean

On Error GoTo ErrProc
Import = False

'Connect to configured server and database.
Set objSrv = New SQLServer
strServer = QueryProfile("Database", "Server", "(local)")
strDatabase = QueryProfile("Database", "Database", "cc_online")
objSrv.Connect strServer, "sa", ""
Set objDb = objSrv.Databases(strDatabase)
Set objTable = objDb.Tables(TableName)

...
...
...
Exit Function

ErrProc:
Err.Raise vbObjectError + 2000, "Merge.Import", "Import for table " & TableName & " failed: [" & Err.Description & "]"

End Function

byref t ype mismatch

ns17-Dec-02 9:09

17-Dec-02 9:09

I have the C dll:

#include <windows.h>
#include <stdio.h>

int _stdcall CallMe(int *a, int *b)

{ 
char ab[20];

sprintf(ab,"The value of a is %d \n",a);
MessageBox (NULL, ab, "Test DLL", MB_OK); 
b = a;

return 0; 

}

with the .def file:

LIBRARY builderDll 
EXPORTS 
CallMe (int *a, int* b) @1

I call this from VB as follows:

Private Declare Function CallMe Lib "C:\PMARModif\builderDll\Debug\builderDll.dll" (ByVal a As Long, ByRef b As Long) As Long
Private Sub Command1_Click()

Dim a As Integer
Dim b As Integer
a = 10

CallMe a, b

Form1.Print b
End Sub

When I try to run I get a byref argument type mismatch pointing at b

Appreciate your help,
ns

Re: byref t ype mismatch

Nick Seng17-Dec-02 17:08

Nick Seng

17-Dec-02 17:08

at first glance, i would say that you're passing in long when the function takes int ??????

Notorious SMC

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.