How To Work With Usb (send Char To Usb)
Mar 10, 2011i work with applicator(this device send label on product Pallet in warehouse)so i insert my record in database then must send "O1" to this devise for print label how can i do?
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Read Individual Char In TextBox And Send To Comm?
Apr 11, 2011May I know instead of using WriteLine(MyTextBox.Text) to send data to a serial port, how do I send character by character? Use BaseStream.Write?
Now:
Dim ComLine As Ports.SerialPort
ComLine.WriteLine(MyTextBox.Text)
File I/O And Registry :: Read Char By Char From A String?
Dec 16, 2008i want to read a character 1 by 1 from a string and a .txt, i know all about stream reader so for the .txt would it be somthing like:textbox1.text = tr.readCharacter.i would prefer to be able to read from a textbox or String array though.
View 10 RepliesValidate String To Have No Space Char And Only First And Last Char As Delimeter
Mar 30, 2012I need validation for string to comply with next: no space char starts with one delimiter char ends with one delimiter char has no other char as delimiter char. Updated sorry missed that should only be one delimiter char at start and at the end
View 2 RepliesOperator '-' Is Not Defined For Types 'char And 'char'?
Sep 30, 2010Public Shared Function UrlTokenDecode(ByVal input As String) As Byte()
If (input Is Nothing) Then
Throw New ArgumentNullException("input")[code].....
Send A Key To A Game - Dosent Work
Mar 11, 2010Im trying to send a key to a game but it dosent work. i have tryed this
CODE:
It works in Windows but not in a game
Send Keys Doesn't Work?
Dec 13, 2009Dim Keys As String
Dim Wait As Boolean
Public Shared Sub SendKeys( _
[code].....
Use AT Commands To Send An SMS Not Work With Windows 7
Mar 3, 2011I'm running Visual Studio 2010, and i'm trying to use AT commands to send an SMS. My question is will it not work with windows 7 due the exclusion of hyperterminal in windows 7. (I was able to dowload a version of Hyperterminal and can use AT commands in that.. but my code itself does not work.) My code is below.
[Code]...
Sedkeys.Send - Binds To Work In Chatbox?
Sep 6, 2009If i have small keybinds program, then i dont want binds to work in chatbox. Binds are numbers 0-9 Private Declare Function GetAsyncKeyState Lib "User32" (ByVal vkey As Long) As Integer.Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim hotkey As Boolean
[Code]...
Send A Time Sheet To Work Each Week
Jan 17, 2010i have to send a time sheet to my work each week. which i do in word. what i want to do is be able to open my word document keeping the exact same format, tables must be the same, allowing me fill out the timesheet in my vb app, i could make life so much easier doing this. because i have alot of functions i could add using vb to make my life so much easier.
View 4 RepliesIncrement A Char - Turn Char A Into B?
May 19, 2009i am trying to increment a char in vb.net, eg: Dim letter As Char = "a"c. and i want to make it b, and so on. how can i do this?
View 1 RepliesCopy The Char Array To An Int Array With The ASCII Values Of Each Char?
Mar 22, 2012I have split a string into a char array, now i need to copy the char array to an int array with the ASCII values of each char.Donīt know how to do it without looping each value.
This is my code:
origen = RichTextBox1.Text.ToString
Dim valor As Char() = origen.ToCharArray
Dim numeros As Integer() = (How can i convert "valor" to an int array?????)
What Is The Difference Between Char And [char]
Jun 5, 2009i have found [char] specified in some of the examples at msdn , what is the difference between char and [char]
View 2 RepliesLINQ Group By Multiple Values Does Not Work Well But Work Well In C#
May 29, 2012I found that when group by multiple values does not work well with VB.NET, but it works well with C# ,here are my code, is there something wrong with my VB.NET Code? Here is my VB.NET code:
[Code]...
VS 2008 SendKeys.Send() Method Does Not Send The Keys Fully Correct All The Time
Nov 9, 2009[Code]....
Now as you can see it is sending the textbox1 text and then pressing enter then sending textbox2 text! Theres quite a few problems in that but before i discuss note: This code is in a Timer. Problem #1: It does not send the keys fully correct all the time because its trying to send them all at once! So i want it to send them 1 letter after the other with 200 ms sleep in them! Problem #2: The sleep is not working: The reason i know is because even after it did the first textbox1 text it didnt wait that 2000 ms!
Setup A Form Using VB That Will Take Information And Send It To The Server And Then Send A Recipient An Email?
May 28, 2009Are there any good books out there that will show someone how to set up a form using Visual basic that will take information and send it to the server and then send a recipient an Email?
View 2 RepliesUsing Send Keys To Send The Squence Alt W (a Integer Called 'index') Escape
Nov 7, 2010I am using send keys to send the squence Alt W (a integer called 'index') Escape
[Code]...
XOR For Each Two Char
Dec 12, 2010I have a textbox with value in it like: "577457747037375770" and so on, i want to XOR each value of them with "0x1b" how can i do that ?Like "0x1b" XOR 57 ; "0x1b" XOR 74 ; "0x1b" XOR 87 and so on for all value in textbox.I don't want to check if the value in the textbox is in the good format, i want just XOR them all.
View 2 RepliesSend Keys To A Control On My Form - SendKeys.Send NullReferenceException
May 9, 2012I am trying to send keys to a control on my form. But I am getting a NullReferenceException and I don't know why. The code is about as basic as it gets: [Code] The error reported is object reference not set to an instance of an object but Send is a shared method so doesn't need an instance. Strangely if I ignore the error it works fine and F4 is passed to the control. I know there was an issue with sendkeys and UAC but I thought this had been solved (I am using 4.0 framework).
View 1 RepliesVS 2008 Send Mouse Click's & Send Key's To Minimized Window?
Apr 9, 2012I have a filter that is used to populate a grid view and the url will conain: /example/grid?value1=1&value2=2
It will then have a link to page 2, which allows them to edit something.I then want them to click a link that will send them back to the gridview under the same parameters of: /example/grid?value1=1&value2=2
Is this possible? How do I hold on and fill in the URL values so it knows how to refill the grid view accordingly?
PerformClick() Doesn't Work - How To Make It Work
Feb 2, 2011I have an application that requires data be entered, and after entering, a button is clicked to process that data. Clicking the button works just as it should--the data is processed properly. In constructing a test module, I provide a set of data values, followed by:
btnWhatever.PerformClick()
Nothing happens. I have used this syntax for years, and it has always worked flawlessly. I have triple checked everything else and isolated the problem to the failure of the PerformClick(). The PerformClick() is in a test subroutine that does nothing but fill textboxes and labels with default data, then calls the PerformClick() on the button to begin processing. Again, the button works fine, the data is entered as it should be, but the PerformClick() does not fire the click event.
VS 2008 Could Not Get Form To Work On Work Computer
Aug 21, 2009I have a form that works on my local Machine I created into. I have Office 2007 on this machine. I created the Form with the Excel 12 Reference. I move the Entire conetence of the Project folder to my work computer. Which has Office 2003. Do I need to recreate the form with the Excel 11 reference. I could not get the form to work on work computer. IT has a com error. I am acessing the EXE for the debug folder w/in the Bin Folder.
View 7 Replies.net String To Char In C?
Jul 14, 2011I have a DLL that I am importing:Declare Function QueryInfo Lib "mydllname" (ByVal DevName As String, ByVal pcQueryParam As String, ByVal Result As String, ByVal Length As Int32) As Int32
[Code]...
Anyone have an idea what the issue could be? If I run similar code in VB6 (only diff is mtStatus = String(mtValueSize, Chr$(0)) ) it returns what I expect.
Getting A Char Return Value From A DLL?
Sep 27, 2010I am currently using a C .dll file in my vb.net project, and need to access a string that it returns (as a pointer to a char array). How can I access this?
Private Declare Function src_error Lib "libsamplerate.dll" (ByVal err As Integer) As (???) 'i've tried intptr, string, integer, none work
<MarshalAs(UnmanagedType.LPTStr)> Dim ptr As String
...and then in the actual function,
ptr = src_error(6) 'returns an error based on what combination of things I've tried
Use A Char In A 'command'?
Feb 10, 2012First things first, sorry if this is in the wrong section and sorry if it has been answered many times before. I have no idea what to search for.
I have two integers and a char which is a maths operator (+ - / * ). What I would like to do is use the operator and pass the answer to another integer. Something along the lines of "Integer3 = Integer1 (Char) Integer2".
What Is The Replacement For Char* In .Net
Apr 8, 2011i have a C++ DLL. What i am doing is that i am passing memory address to my C++ dll where it write message on that address and i want to read the message from that memory address.
Here is my C++ function.
int _stdcall Test(int res, wchar_t *text)
Now in my C#.Net test app .. if i use unsafe char* .. i am getting proper output.
Declaration
static extern unsafe int Test(char* msg);
Implementation
[code].....
Now implementing in vb.net i am getting jst 1st character by using stringbuilder.
Dec
Private Shared Function Test(ByVal msg As StringBuilder) As Integer
Imp
[code].....
What is the replacement for char* in .Net ?
Get An Error On SMTP.Send(MyMailMessage) Saying 'Failed To Send'
Nov 7, 2009I get an error on SMTP.Send(MyMailMessage) saying 'Failed to send'
My
Dim MyMailMessage As New MailMessage()
ProgressBar1.Value = 30
MyMailMessage.From = New MailAddress("MyGmailEmail")
MyMailMessage.To.Add("MyEmail")
[Code]...
Use The Send Keys Function To Send Text To Another Program?
Apr 29, 2009I am trying to use the send keys function to send text to another program.I ahve gotten it al working well, except for using () as I know sendkeys doesnt like these.I have tried using the Replace function in several places in my code to replace the ( with {(} and {+0} etc, with various other options tried.But when I run the program, it seems to skip this out completly and leaves them in the string as (, and therefore it errors and wont run.When I step through it, it goes through the function but doesnt alter the strng as it should. This is the code to send the string and my attempt at making it replace the () in the module
Module TextReplacement
Private Declare Function GetAsyncKeyState Lib "user32.dll" (ByVal vKey As Int32) As Short
Dim counter As Integer
Dim sData() As String
[code]....
The error I get when i try send "Test :)" is: ArgumentExcveption was unhandled "SendKeys string 'Test :)' is not valid"
Why Is String Returning A Char
Jun 27, 2012I have built a DataTable from my database. Then I am looping through the rows and trying to access a string, however the value is being returned as each character in the string.
For Each theseRows In DisplayForm.MainTab.Rows
If theseRows.Item("Last_Name") = userLast And theseRows.Item("First_Name") = userFirst Then
[Code]....
The Trap_Code values are two or three letter strings, the returned value is each letter once at a time. The loop seems to cycle through the individual characters of the string as an array rather than display the entire value, which is what I was hoping for.
'System.IndexOutOfRangeException' With .Char()?
Jun 28, 2011Private Sub TbxInput_KeyUp(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TbxInput.KeyUp
[Code]...
Basically, what this code is supposed to do is compare the text inputted in the input textbox with the text of the string answerstring. It seems to successfully compare the two, but every time I type the first char into the input textbox the program crashes, givingmythe Out of Range Exception. I assume it means the Char() "array" thats built into vb is out of bounds, however as i've set the while loop so that it only is executed when the whilecount is less than both the length of the input textbox and the answerstring, I don't see how it could be out of bounds.