Visual Basic

Interrupt parallel port ?

25-Dec-06 14:33

As has been said, this is the wrong place. The web dev forum seems best, but google is even better, there are tons of the things out there for download.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog

ersteffen25-Dec-06 5:00

ersteffen

25-Dec-06 5:00

Can sayme, please if possible work with the parallel port in Windows 98 and Visual Basic 6 generating interruptions (like MSComm in serial port do) when a pin of parallel port change your voltage or your value is e.g. 5 Volt ?
I'm not wish pooling the parallel port.

Best regards,
Edgar Steffen.

Re: Interrupt parallel port ?

Dave Kreskowiak26-Dec-06 3:51

Dave Kreskowiak

26-Dec-06 3:51

Your code can't generate the interrupt, no. You'll need a driver that fires events, not interrupts, that your VB6 code can handle and respond to. Without a driver that exposes this, your VB code is limited to polling for the status of various pins. This is CPU consuming and very ineffecient as you'll miss changes of state of various pins if they change and change back faster than your polling interval.

Dave Kreskowiak
Microsoft MVP - Visual Basic

is it possible to use the windows application on LAn

Rmesh24-Dec-06 22:03

Rmesh

24-Dec-06 22:03

I have to install the windows application on server ,is it possible to access the application connected to that computer

Re: is it possible to use the windows application on LAn

Christian Graus25-Dec-06 14:34

VB6 Ascii Art Corrupt Output

25-Dec-06 14:34

Yes, you can just run it over the network. It will, however, run on your local machine. You need to use some sort of remote desktop software to run it, on the machine it's on.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog

hkinser924-Dec-06 19:27

hkinser9

24-Dec-06 19:27

All,

I've wanted to complete my Ascii Art project in VB6 for my son before I tried to port it over and learn VB.Net in more detail. My son loves the end-result art work you can do by loading an image and having it come out as colored HTML. Instead of buying a program to do it, I wanted the challenge of doing it myself. This program will take an image file (gif, jpg, bmp) and convert it to ASCII and store it in a colored htm file. It uses a loop that replaces a pixel with a letter.

I've got the program working in VB6 funtionally; however, the output is not what is expected and after a couple weeks have no idea why. I was hoping I could post the program here or send it to someone who has time to review the programs code. It's approximately 270 lines of code. Small project with one form only.

I didn't see where I could attach a file to upload the code here. Suppose I could copy/paste it all here, but wanted to see who was interested first. Plus with the program, I'm sure it will be much easier to troubleshoot.

Sincerely,
Harold

inserting value in start of array

H3rman24-Dec-06 5:29

24-Dec-06 5:29

I have struggling with this for a few days now and i can't come up with a solution, damn it I can't sleep.

I have a array of bytes (iv'e used the UTF8 encoding from string to bytes) but i wan't to insert 4 bytes (255 = &HFF) before the result from the encoding. How do i do this the easiest way? do i have to loop through all values in the array? that seems to be a huge waste of cpu.

Thanks. And a merry merry X-Mas!!!!

CPallini24-Dec-06 5:56

CPallini

24-Dec-06 5:56

If you post the code maybe it will help us.

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

H3rman24-Dec-06 10:04

24-Dec-06 10:04

Imports System.Text

Dim myBytes() As Byte
myBytes = Encoding.UTF8.GetBytes("TESTSTRING")
Dim myStartBytes() As Byte = {255, 255, 255, 255}

I want the mystartbytes to be in mybytes(0,1,2,3) but not overwrite but to push in the value so the rest of the array is moved 4 steps.

Do you understand what i mean?... My brain has freezed up.... thanks for your help.

CPallini24-Dec-06 11:14

CPallini

24-Dec-06 11:14

It seems that you need a different container, have a look to ArrayList class (that provides the Insert method as well the InsertRange) on MSDN.
Hope that helps.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

H3rman24-Dec-06 15:12

24-Dec-06 15:12

Hi again....

I got it workin but I'm note quite happy with my coding.... feels like alot of unnecessary steps just for combinding two arrays with a few bytes in it.

Dim myMessage As New ArrayList

Dim myByte() As Byte = {255, 255, 255, 255}
myMessage.AddRange(myByte)

myMessage.AddRange(Encoding.UTF8.GetBytes("rcon popeye status"))
myByte = myMessage.ToArray(GetType(Byte))

Yona Low24-Dec-06 16:39

Yona Low

24-Dec-06 16:39

In .NET 2.0 this is 2 lines

Dim byteList As New List(Of Byte)(New Byte() {255, 255, 255, 255})
byteList.AddRange(UTF8.GetBytes("TESTSTRING"))

Since in .NET 2.0 the List is Generic, you can use the ToArray Methohd to get a byte array of the byteList on the fly

Example:

Dim pass() as byte = byteList.ToArray

Or even in method calls:

Dim writer As New BinaryWriter(New FileStream("C:\test.txt", FileMode.CreateNew))
writer.Write(byteList.ToArray)

Thanks

H3rman24-Dec-06 23:57

connection string & forms

24-Dec-06 23:57

Thank you guys, I'm forever gratefull.

seman7124-Dec-06 1:04

seman71

24-Dec-06 1:04

i have made a form that user can inbut the server & password & userid
and it work
but i wont this form tho change the connection string one time and dosent apear evry time the program work
or this form apear at the setup of the program

Rose | [Rose]

please help me tanx

Re: connection string & forms

Christian Graus24-Dec-06 1:21

Re: connection string & forms

24-Dec-06 1:21

I can't understand the question - perhaps if you post some code ?

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog

Paul Conrad25-Dec-06 18:00

Paul Conrad

25-Dec-06 18:00

OP doesn't make any sense. I am guessing he wants to have something done at during setup of his app...

If you try to write that in English, I might be able to understand more than a fraction of it. - Guffa

Re: connection string & forms

S Douglas25-Dec-06 20:41

S Douglas

25-Dec-06 20:41

seman71 wrote:
i wont this form tho change the connection string one time and dosent apear evry time

So get the information from the user once serialize it to the registry, ini file, or an XML file which ever you’re most comfortable with. On App start up, read the info try and connect, if the connection fails present the dialog to fetch the dB server information again, try connecting until it succeeds. Simple enough

I'd love to help, but unfortunatley I have prior commitments monitoring the length of my grass. :Andrew Bleakley:

TabIndex !!!!!!!!!!!!!!!!!!!!!!!!!

kindman_nb24-Dec-06 0:34

kindman_nb

24-Dec-06 0:34

Hi some of you may be wondered , that is's easy that you can control of the tab index
I'm using vb.net 2005 and when I copy a control from on form to anther or from the form itself then when i go to requlate the tabindex , on Run mode when you press Tab key i found that the arrangement that i did doesn't work , and the tab control is following the ordering of adding it on the form ,,

your program is good but when the user found this simple disadvantage Frown | :(

(

jooooo

Christian Graus24-Dec-06 1:20

24-Dec-06 1:20

Tab index is a property of each control. It doesn't need to be a strict 1,2,3,4 sequence, but it will run in numeric order, based on the values you provide, or the defaults.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog

kindman_nb24-Dec-06 9:38

kindman_nb

24-Dec-06 9:38

Thanks Graus

I accept you as it's not neccessary to be 1,2,3 ...
you can make any sequence , I'm allready make it but on run time when you press tab key you find that the order of it isn't as you have changed,,

I know as it's so simple thing , and I did it on some new application I found that it's working as good ,

but on my project some times I copy controls from one place to another and then delete some and reAdd some .. etc , then I go to reEnter the TabIndex as any ordered numbers , ,, on run time I found this problem only on my project , ,,, I'm using some controls of Devexpress's controls , I don't know it's my make any problems Confused | :confused:

I don't know ,
I'm sorry for waste your time Rose | [Rose]

jooooo

Dave Kreskowiak25-Dec-06 17:39

Dave Kreskowiak

25-Dec-06 17:39

Is the TabStop property of those controls set to True?

Dave Kreskowiak
Microsoft MVP - Visual Basic

kindman_nb25-Dec-06 20:45

kindman_nb

25-Dec-06 20:45

Hi Dave

all of them all , TabStop is False /
Really I'm confused ,
and sometimes I found some labels it's location is changed by itselfes , and also I found sometimes the text of labels is Null , really Why ????

I'm using some controls of Devexpress controls that someone give me a full version of it with crack , you see , Are this controls make aproblem on my project ??

I became don't know any thing !!!!!!!!!!!! Confused | :confused:

jooooo