.net - Mods And ASCII In VB Caesar Shift?

Apr 10, 2012

I have this code which shifts the alphabet by a certain amount. The size of the alphabet is 26. When I enter a larger size shift (for example 22) I get some weird characters displaying. I think I need to mod the ASCII alphabet to 26 to get it working but Im not quite sure which bit to mod. Basically I need to wrap around the alphabet (once it reaches Z it goes back to letter A) Do I have to create a dictionary for the mod to work (like A = 0... Z = 26) or can I stick with using the normal ASCII table? Here is the code below:

Public Function encrypt(ByVal input As String) 'input is a variable within the funcion
Dim n as Integer
Dim i As Integer



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Jan 10, 2010

How to hold shift and then click button a and b (while holding shift)?

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Dec 15, 2009

In my keydown event handler, when Keys.Numpad4 is pressed with Shift, I get the same keycode code as for Keys.Right. Is this by design? How can I distinguish between the two?  

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Apr 5, 2009

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I gather the code is either not updated upon build/compile, or this bit of code is stored somewhere.

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May 30, 2009

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Dec 11, 2010

I am using Microsoft.VisualBasic.Fileio.TextFieldParser to parse a CSV file that was created with Excel 2003. The parser is working great with the exception that it is converting extended ascii values to question marks! So if the file content was:

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May 9, 2011

I'm working on decoding a NMEA sentence that is a compressed 8-bit string. I'm having a very hard time of wrapping my head around the bit manipulation needed to convert this string. If someone could get me started with this it would be great.

Here is the incomming string:


and here is the expected output:


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Nov 4, 2009

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Aug 7, 2009

So I have an ASP.Net (vb.net) application. It has a textbox and the user is pasting text from Microsoft Word into it. So things like the long dash (charcode 150) are coming through as input. Other examples would be the smart quotes or accented characters. In my app I'm encoding them in xml and passing that to the database as an xml parameter to a sql stored procedure. It gets inserted in the database just as the user entered it.

The problem is the app that reads this data doesn't like these characters. So I need to translate them into the lower ascii (7bit I think) character set. How do I do that? How do I determine what encoding they are in so I can do something like the following. And would just requesting the ASCII equivalent translate them intelligently or do I have to write some code for that?

Also maybe it might be easier to solve this problem in the web page to begin with. When you copy the selection of characters from Word it puts several formats in the clipboard. The straight text one is the one I want. Is there a way to have the html textbox get that text when the user pastes into it? Do I have to set the encoding of the web page somehow?


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Feb 9, 2011

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Mar 24, 2010

Can VB.NET Form keyDown event determine whether left or right shift (alt, control) key was pressed? I always receive the same keycode (16) for both left and shift key!

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Dec 6, 2011

I have been able to toggle CAPS, NUM AND SCROLL lock using the method below but using the code below that although no error occours when I click the button nothing happens?The code which works for caps, num and scroll


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Nov 16, 2011

I just found an interesting problem between translating some data:

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May 15, 2011

When I run this command in PHP, I get:


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Can Shift+F3 Be Detected With E.keydown?

Feb 7, 2012

I am running out of function keys and it will be nice if I can double up on some of them with the Shift Alt or Ctrl keys.I am using

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Convert Unicode In One TB To Shift-JIS In Another TB?

Jun 10, 2010

Trying to develop a text editor, I've got two textboxes, and a button below each one.When the button below textbox1 is pressed, it is supposed to convert the Unicode text (intended to be Japanese) to Shift-JIS.The reason why I am doing this is because the software VOCALOID2 only allows ANSI and Shift-JIS encoding text to be pasted into the lyrics system. Users of the application normally have their keyboard set to change to Japanese already, but it types in Unicode.How can I convert Unicode text to Shift-JIS when SJIS isn't available in the System.Text.Encoding types?

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Sep 5, 2011

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When trying these in my project, I couldn't find the right codes to do this.  I can't imagine this feature isn't available so I'm sure I am just messing up somehow. 

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May 11, 2010

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Nov 19, 2011

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Sep 13, 2009

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Oct 3, 2008

Is there a pre-existing method in vb.net to shift elements? Like the following.

testArray elements:
0: ""
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Dec 12, 2009

I know how to sendkeys, SendKeys.Send("Hello") I know how to hit other keys, Sendkeys.Send("{ENTER}")

But how do I HOLD DOWN the Shift key, I want to be able to highlight text, I know, I need to press the Arrow keys while the shift key is held down...

So... How is it possible to Hold down the Shift key

Oh yeah, and I even know how to simimulate a mouse click, drag, let go, ect. ect...

how to hold down the shift key in VB.NET?

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Feb 27, 2009

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Imports Microsoft.Office.Interop  
Imports System.IO  


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VS 2005 Hotkeys With Shift?

Apr 25, 2009

I'm trying to make a prank program that registers all of the letter keys on the keyboard and then will make random message boxes pop-up when you press certain ones, or just re-arrange the letters.But before adding any pranks, I'm trying to just get all of the hotkeys to work like a normal keyboard because when you register a key to be a hotkey, it no longer works for anything else. So registering "e" in the program will cause "e" to do nothing when your in notepad or something.

So far I've gotten pretty much everything to work except for this weird Shift bug. Whenever I press Shift and then a letter, the Sendkeys will correctly send the uppercase key, however as soon as I release shift and press a key without it, it still keeps the uppercase for one more letter.So if I press Shift + E then "E" will be successfully sent to Notepad, but then if I just press "b", "B" will be sent instead, but then after that first error it will successfully send lowercase again.

I was using wordlabel to store the letters so as to see if the shift uppercase problem was something in my coding, but actually when I press Shift + A and then just press a, it will do Aa in the label but AA in a program with the focus, like Notepad. So I don't know if this is a problem with Sendkeys or what but does anyone know of a solution?

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Nov 5, 2010

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Jan 20, 2011

I've been trying to write code below many time, but it still doesn't work.
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Jan 15, 2012

Possible Duplicate: How do I get the current state of Caps Lock in VB.NET? I am wanting to create two functions related to key input:

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Dim shiftKey As Boolean = GetShiftKeyState() 'imaginary function

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May 30, 2011

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Sep 9, 2009

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Aug 24, 2011

How can we prepare a rota application which changes the shift so that all the employees get to work in different shifts and in the month end the number of shifts done by all the employees should be the same..

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Jul 18, 2011

I am writing a program using VB6 and i can write and read to a file using the System.IO.StreamWriter and System.IO.StreamReader. Now i am trying to delete an entry in the file and shift the remaing entry's up to prevent a blank line.[code]...

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Mar 30, 2011

I'm using the function sendkeys.send(). I'm using it in a cell of a grid because everytime I write a letter, I deactivate an activate the control, and when this happens the whole text is selected, and I want the cursor to be placed at the end of the text. In order to to this, I use: SendKeys.Send("{end}") It usually works fine, but when I'm pressing the shift key to write capital letters, it doesn't work. I've tried to send other keys with that function while pressing the shift key. If i use

I get an A, like when I use

Should I disable the keyboard input before using the sendkeys instruction, and how should I do it?

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Feb 19, 2011

I opened firefox from my VB program.  the browser launched and loaded the page correctly. 

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Jun 23, 2012

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Dec 10, 2011

I want to capture Shift+Tab keypress on an textbox. To do so i have used the followin code but it doesn't work

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Jun 5, 2011

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Oct 19, 2011

The use of shift + scroll wheel is fairly common for horizontal scrolling.

Both of those are fairly easy to capture. I can use the MouseWheel event with a flag set by the KeyDown, KeyUp events to keep track of when the shift key is pressed.

However, how do I actually trigger the horizontal scrolling? I am aware of WM_MOUSEHWHEEL, can that be used to trigger the event?

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Apr 14, 2012

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May 19, 2009

I'm listening for the KeyDown event in one of my forms (vb.NET, by the way). In this form, I've provided functionality, to search forwards and backwards. Searching forwards on a previously searched item is achieved by simply pressing F3. Searching backwards is achieved by pressing Shift or Ctrl + F3. I'm looking to use the Ctrl or Shift key (whichever is pressed) as a modifier and then I'd like to check e.KeyCode for F3. The problem is that as soon as I press Ctrl or Shift, an event fires for that key. I then can't do a check for F3, because e.KeyCode = Keys.ShiftKey or Keys.ControlKey respectively.

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Sep 1, 2009

How to find shift and rotation between same two images using programming languages vb.net or C++ or C#?

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