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Re: Problem calling Windows API from VB.NET

Lasse3-Sep-02 5:31

Lasse

3-Sep-02 5:31

Have you tride declaring long instead off integer..

ByVal hServer As Long, _
ByVal lObject As Long, _
ByVal nObject As Long, _

In your .Net declare you are using int's

Also if the API declaration is from VB6, which used ByRef as default parameter passing.
.Net is using ByVal as default..this you will have to change acordingly.

Hmm...

Threads

Gautam Panemangalore1-Sep-02 21:21

Gautam Panemangalore

1-Sep-02 21:21

Is it always necessary to assign priorities to threads in VB.net, like java wont VB automatically assign thread priorities incase we dont explicitly specify them.

Re: Threads

Lasse2-Sep-02 5:43

Lasse

2-Sep-02 5:43

The default value off ThreadPriority is Normal..so it's not necessary to set it explicit

Hmm...

dissasemble MsWord macro

Mariusz Popiolek31-Aug-02 11:01

Mariusz Popiolek

31-Aug-02 11:01

I want to dissasemble MsWord macro (.dot file) and I don't know whether this is possible.

System.EnterpriseServices.ServicedComponent.Activate/Deactivate

devvvy29-Aug-02 10:46

devvvy

29-Aug-02 10:46

i'm kind of confused by the notion of:

Activated Vs Constructed
Deactivated Vs Destructed

reference namespace: System.EnterpriseServices.ServicedComponent

My understanding is that a pooled component is constructed (meaning memory for the component itself is allocated and maintained). Then, when a request comes in for this particular component, the component is activated, and this is when u want to established your database connection and such. Now, after servicing this particualr request, assuming no further request is coming in, the component is deactivated, thereby releasing database connection and other valuable system resources...

is this understanding correct?

thanx!

norm

SYSTEM PROGRAMMING

shiju29-Aug-02 10:48

shiju

29-Aug-02 10:48

HOW CAN AN EXE DONE IN VB ,BE EXECUTED BEFORE A BIOS STARTS Confused | :confused:

Re: SYSTEM PROGRAMMING

Brian Delahunty29-Aug-02 10:54

Brian Delahunty

29-Aug-02 10:54

Eh. Why would you want to do this???? Unsure | :~

Regards,
Brian Dela Smile | :)

Re: SYSTEM PROGRAMMING

Ray Cassick29-Aug-02 18:06

Ray Cassick

29-Aug-02 18:06

Err, nothing can be run before the BIOS starts.

Re: SYSTEM PROGRAMMING

benjymous10-Sep-02 3:18

benjymous

10-Sep-02 3:18

I guess you could make something that plugs into the bios socket, and has the original bios chip plug into it (which would work the way console modchips do)

But this isn't going to be possible with VB (as VB creates windows programs, which won't be able to be run in such a way)

You'd need to learn assembly to be able to write your own bios replacement

--
Help me! I'm turning into a grapefruit!

Re: SYSTEM PROGRAMMING

NormDroid11-Sep-02 6:37

NormDroid

11-Sep-02 6:37

urrrm, crazy idea, VB program starts before operating system, sorry back to computer science basics for you laddie.

Normski. - the next bit of code is self modifying ... jmp 0xCODE

dll component services and strong names

Norm29-Aug-02 9:51

Norm

29-Aug-02 9:51

my question is, if u want to create a component service, u need to register your dll with RegSvcs .exe. Before u can do this, u must make sure that your dll has strong name: signed by private key. Now, the simplest way is to use "sn" tool:

sn - k c:\SimpleKeyPair.snk

then, register server by:

regsvcs c:\MyTransactionServ.dll

However, is there any way I can use my private key from my web server certificate or personal certificate obtained from versign?

thanx!

dll component services and strong names

Anonymous29-Aug-02 9:49

Anonymous

29-Aug-02 9:49

reddy12398729-Aug-02 9:08

reddy123987

29-Aug-02 9:08

modified 14-Nov-12 13:40pm.

Re: Problem calling Windows API from VB.NET

Lasse29-Aug-02 9:53

Lasse

29-Aug-02 9:53

You should try creating a class with public members instead..

Hmm...

Scanning documents with VB.Net

James Williams29-Aug-02 7:05

James Williams

29-Aug-02 7:05

Does anyone know of any sources that have either tools or code examples of implementing the scanning of documents using VB.Net? I have already checked out Leadtools and their .Net tools. I would like to see any others that might be available, but haven't been able to find any as of yet.

reddy12398729-Aug-02 8:59

reddy123987

29-Aug-02 8:59

modified 14-Nov-12 13:41pm.

Re: Scanning documents with VB.Net

James Williams3-Sep-02 7:31

James Williams

3-Sep-02 7:31

Thanks for the info. I'm checking out the site now and have requested some information from them. Do you know of any sites that have reviews/comparisons on sheet-fed document scanners, such as the Ricoh IS450?

elapse with time!!

drmzunlimited29-Aug-02 2:19

drmzunlimited

29-Aug-02 2:19

hi everybody
I have created the projects using Vb and Vb.net ...now I need that they should stop working after 10 days.
plz tell me the code to be added to them....

or how to do this thing? that a program should stop working after 10 days?

bye Confused | :confused:

Re: elapse with time!!

Lasse1-Sep-02 8:17

Lasse

1-Sep-02 8:17

We are using a little DLL called "OneWay" to do the job for us.
Evt take a look at their site.

http://www.atma-software.com/1way/

Hmm...

error while trying to create a random text display

sukino28-Aug-02 19:34

sukino

28-Aug-02 19:34

somehow.... I receive an error saying that
Type mismatch
test1.asp, line 11
why is that so???? I had set the Path correct..... table is correct and rs.fields are correct also

<%

Set conn = Server.CreateObject("ADODB.Connection")
DBPath = "Provider=SQLOLEDB;Data Source=SITDB580;....;"
conn.Open DBPath

Set rsDaten=Server.CreateObject("ADODB.Recordset")
strSQL="SELECT * FROM testimonials"
rsDaten.Open strSQL,conn,0,3
nTotalRecs = rsDaten(0)
if nTotalRecs <> 0 then <======line 11
rsDaten.MoveNext
nTotalMax = rsDaten(0)
rsDaten.MoveNext
nTotalMin = rsDaten(0)
end if
rsDaten.Close

Randomize
intChoice = Int((nTotalMax - nTotalMin + 1) * Rnd + nTotalMin)

Set rs=Server.CreateObject("ADODB.Recordset")
strSQL="SELECT * from testimonials where ID="&intChoice &""
rs.Open strSQL,conn
strText=rs.Fields("Text")
strAuthor=rs.Fields("Author")

if not rs.EOF then %>

<%if strAuthor<>"" then %>
<%end if %>

	<%=strText %>
	- <%=strAuthor%> -

<% end if
rs.close
conn.close %>

Re: error while trying to create a random text display

Lasse29-Aug-02 8:43

Lasse

29-Aug-02 8:43

It depends on which datatype the field "rsDaten(0)" has.. if its a string or date you can not compare them to 0 ->"nTotalRecs <> 0"

Hmm...

System.Windows.Forms.SystemInformation

Ray Cassick28-Aug-02 17:34

Ray Cassick

28-Aug-02 17:34

Ok, maybe I am dumb here but I am trying to detect if my computer is connected to the network.

I spend about 15 minutes going through the docs and I find the System.Windows.Forms.SystemInformation class with Network property. Seems all too easy...

I do the following:

<br />
  Dim NetInfo As System.Windows.Forms.SystemInformation<br />
<br />
  If NetInfo.Network = True Then<br />
     pnlIndicator.BackColor = Color.Green<br />
<br />
  Else<br />
     pnlIndicator.BackColor = Color.Red<br />
<br />
  End If<br />

...and I figure, heay great, I should get a green panel when I have my net cable plugged in and it should go read when my cable gets unplugged (I placed this code into a timer tic event hander).

NOPE. Does not seem to do anything...

Anyone have any darn ideas?

Re: System.Windows.Forms.SystemInformation

Paul Riley28-Aug-02 18:55

Paul Riley

28-Aug-02 18:55

Mine seems to come up with "true" regardless of the reality as well.

Maybe it means "if there's a network card" or "if there's something plugged into the network card, regardless of where it might go"?

By the way, this function is static, you could just use:

<br />
' Dim removed<br />
If SystemInformation.Network Then<br />
    pnlIndicator.BackColor = Color.Green<br />
Else<br />
    pnlIndicator.BackColor = Color.Red<br />
End If<br />

Won't solve your problem though. Roll eyes | :rolleyes: