Visual Basic

Taking pictures with Web Cam

1-Apr-12 22:38

sicca wrote:
How I can change the position of the printing of datagridview?

By changing the coordinates of the upper left corner.

The DataGridView doesn't support printing out of the box. That means that you must be using custom code to print that grid. Without looking at that code, we can only guess.

Bastard Programmer from Hell Suspicious | :suss:

Pasan1481-Apr-12 8:21

Pasan148

1-Apr-12 8:21

I used this code to take picture with a webcam http://lobsterproductions.weebly.com/uploads/1/9/5/1/1951779/webcam_picture_tool_codes.txt[^]

It works perfect on Win XP. But not on Win 7. What's the issue here. How do I modify this code to work on Win 7 too.

Wes Aday1-Apr-12 13:30

Wes Aday

1-Apr-12 13:30

Pasan148 wrote:
But not on Win 7

Don't you think that "It doesn't work under Win 7" is a bit vague?

Why is common sense not common?
Never argue with an idiot. They will drag you down to their level where they are an expert.
Sometimes it takes a lot of work to be lazy
Please stand in front of my pistol, smile and wait for the flash - JSOP 2012

Peter_in_27801-Apr-12 16:08

Peter_in_2780

1-Apr-12 16:08

Give him a break. At least he can spot the difference betwqeen XP and Weven. Poke tongue | ;-P

Peter

Software rusts. Simon Stephenson, ca 1994.

Wes Aday1-Apr-12 16:14

Wes Aday

1-Apr-12 16:14

Peter_in_2780 wrote:
Give him a break

I did give him a break. I merely pointed out that his question was not at all clear. It does not even follow forum guidelines. At least *I* did not vote him down. Poke tongue | ;-P

Peter_in_27801-Apr-12 16:23

Peter_in_2780

1-Apr-12 16:23

Wes Aday wrote:
At least *I* did not vote him down.

Nor me.

Peter

Software rusts. Simon Stephenson, ca 1994.

Pasan1482-Apr-12 7:26

Pasan148

2-Apr-12 7:26

I can't understand why it's not clear for you. I just want to modify that code to work on Windows 7 too. If you know the answer please let me know. If you don't know the answer just ignore it.

Luc Pattyn2-Apr-12 9:53

Luc Pattyn

2-Apr-12 9:53

Pasan148 wrote:
It works perfect on Win XP. But not on Win 7

Pasan148 wrote:
I can't understand why it's not clear

"doesn't work" does not convey any information, that is the problem with your post. What is happening? the program refuses to launch? it throws an exception? it exits without any message? the computer explodes? or what?

"doctor, it hurts" cannot be turned into an effective diagnosis.

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

Eddy Vluggen1-Apr-12 22:40

1-Apr-12 22:40

Pasan148 wrote:

It works perfect on Win XP. But not on Win 7. What's the issue here. How do I modify this code to work on Win 7 too.

Identify the part that's failing and try and write a replacement for it.

Bastard Programmer from Hell Suspicious | :suss:

C, VB.net, MySql

kus_hal031-Apr-12 0:02

kus_hal03

1-Apr-12 0:02

I have developed one GUI in vb.net but now I want to use C as backend code along with MySql as database.
Is it possible to create such a application.

I have been using C and MySql under Fedora and I have my GUI ready in vb.net. Can you tell me how can I communicate these thing together?

For ex. I have add button on front end, when I click add button, and instead of defining functionality in vb.net I want to send input to C function and then C function will execute and return output.

Re: C, VB.net, MySql

Eddy Vluggen1-Apr-12 2:22

1-Apr-12 2:22

kus_hal03 wrote:
I have been using C and MySql under Fedora and I have my GUI ready in vb.net. Can you tell me how can I communicate these thing together?

Using a variety of techniques. What's the VB.NET GUI running on, is it a Windows system, or is it running on the same Fedora-machine?

Easiest way to have them communicate would be over web-services.

Bastard Programmer from Hell Suspicious | :suss:

Re: C, VB.net, MySql

LCARS x3211-Apr-12 9:14

LCARS x32

11-Apr-12 9:14

You can also export your C classes in such a way that VB.net can use them like you would API calls. I did this on a shell I developed so that I could get the sytem tray icons. Search google for "Use C++ DLL in VB.net". Another option is to use WndProc messages between the two applications. That's the way I would go personally. The concept you'll want to research is "inter-process communication".

Re: C, VB.net, MySql

Eddy Vluggen11-Apr-12 9:45

On Terminate Function or Sub

11-Apr-12 9:45

That's assuming that they're on the same computer.

Bastard Programmer from Hell Suspicious | :suss:

Brandon-X1200031-Mar-12 16:51

Brandon-X12000

31-Mar-12 16:51

Hello All,

I was wondering if there is a snippet that allows your program to follow out programming when it is terminated through task manager or similar tool. For example (Not valid code):

Private Sub OnTerminate() Handles Form1

Wondering if there is such a thing you could implement into your application Smile | :)

Simple Thanks and Regards,
Brandon T. H.

Been programming in Visual Basic for 4 years this point forward, and is very good at it (I can even create programs completely on code, without dragging those items from the toolbox). Programming C++ for 1 year so far and the same with C#.

Many of life's failures are people who did not realize how close they were to success when they gave up. - Thomas Edison

Re: On Terminate Function or Sub

Dave Kreskowiak31-Mar-12 18:04

Re: On Terminate Function or Sub

31-Mar-12 18:04

There's no such thing.

Task Manager tries to shut down your app nicely, by sending a message to it exactly like the user closed the main window.

If the app doesn't respond in time, the app is stopped completely and all memory for it freed. Your code never gets a chance to respond to anything as it's not running anymore.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Eddy Vluggen2-Apr-12 0:36

CNC development in VB.net

2-Apr-12 0:36

Brandon T. H. wrote:
Wondering if there is such a thing you could implement into your application

The original app could simply be halted by Windows, being unloaded from memory without any warning. A simple solution would be a watchdog-application; write an app that starts your original app, and have it check from time to time whether it's still alive.

Bastard Programmer from Hell Suspicious | :suss:

Reverse IP domain lookup

Ammar_Ahmad31-Mar-12 9:28

Ammar_Ahmad

31-Mar-12 9:28

Hello, I would like to as you if there is a way I can perform a reverse IP domain lookup (get all the domains of the websites that are hosted on that server) using vb.net

Something like this: http://www.yougetsignal.com/tools/web-sites-on-web-server/[^]

It would be awesome if you could provide me with the source code.

Regards,
Ammar Ahmad.

εїзεїзεїз31-Mar-12 2:48

εїзεїзεїз

31-Mar-12 2:48

Thanks in advance..!

I want to start CNC development in VB.net,From where should i start, any recommendations
for the books/articles etc .I should do this in vb.net or C#.

SOFTDEV

Luck in life always exists in the form of an abstract class that cannot be instantiated directly and needs to be inherited by hard work and dedication.

Re: CNC development in VB.net

Dave Kreskowiak31-Mar-12 3:49

Re: CNC development in VB.net

31-Mar-12 3:49

You should start with the hardware you're going to be controlling and it's specifications and documentation. You're also going to have to learn G-Code, what each instruction means, how to parse it and translate that to motion of the tool head, ...

Judging by your question history, this project is WAY over your head right now.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

εїзεїзεїз1-Apr-12 4:50

εїзεїзεїз

1-Apr-12 4:50

Thanks for the reply , i did study G-Codes, The only thing making me confused is weather to do it in vb or C.

SOFTDEV

Luck in life always exists in the form of an abstract class that cannot be instantiated directly and needs to be inherited by hard work and dedication.

Re: CNC development in VB.net

Dave Kreskowiak1-Apr-12 12:22

Counting the Occurence of each letter in a textbox

1-Apr-12 12:22

Whatever language you're comfortable with. It really doesn't matter.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

tan87329-Mar-12 20:46

tan873

29-Mar-12 20:46

HI I NEED HELP ABOUT COUNTING AN OCCURRENCE OF EACH LETTER IN A TEXTBOX

FOR EXAMPLE I HAVE 2 TEXTBOX

IN TEXTBOX1 I INPUT THE WORD "HELLO WORLD"

THEN WHEN I CLICK BUTTON 1 THEN IT DISPLAY IN TEXTBOX2 LIKE THIS:

1H 1E 3L 2O 1W 1R 1D 1R IT REVERSE AS H1 E1 L3 O2 W1 R1 T1

AS LONG AS IT DISPLAY...

THANKS IN ADVANCE I'M NEW IN VB.NET AND I DONT KNOW HOW TO DO THAT...

Re: Counting the Occurence of each letter in a textbox

Chandrasekharan P29-Mar-12 20:57

Chandrasekharan P

29-Mar-12 20:57

Maybe this link will help you [^]

And Read the Guidelines before you post your thread. The 8th Point.

Every new day is another chance to change your life.

Re: Counting the Occurence of each letter in a textbox

Simon_Whale29-Mar-12 23:26

Simon_Whale

29-Mar-12 23:26

Here is a quick / rough way that I would count the characters in a string

Dim s As Char() = TextBox1.Text.ToCharArray
Dim p As New Dictionary(Of Char, integer)

For Each chars As Char In s
    'ignore the spaces
    If Not chars = " " Then
        'count the occurances of the character
        Dim i As Integer = s.Count(Function(r) r = chars)

        'if the letter is not in the dictonary
        If Not p.ContainsKey(chars) = True Then
            p.Add(chars, i)
        End If
    End If
Next

Lobster Thermidor aux crevettes with a Mornay sauce, served in a Provençale manner with shallots and aubergines, garnished with truffle pate, brandy and a fried egg on top and Spam - Monty Python Spam Sketch

modified 30-Mar-12 19:35pm.

Re: Counting the Occurence of each letter in a textbox

Dave Kreskowiak30-Mar-12 6:29