Send Keystrokes To A Serial Port?
Mar 11, 2010I am trying to send a ctrl-x keystroke to COM2 and I ahve to code to open the port and read and write but when I tried to send Chr(Keys.ControlKey + Keys.X) it did not work
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Send *.Hex File Via Serial Port To A MCU?
Sep 11, 2009sending a hex file through serial port using vb.net? and i m not really sure the difference between sending data and sending a file, seems majority of the topics on the forum is about sending data via serial port.
View 2 RepliesUsing Chr$ To Send Data To The Serial Port?
Feb 18, 2011I used this code in the pass with VB6 to send hex data over the serial port to a microcontroller.
MSComm1.Output = "C"
Send command ID
MSComm1.Output = Chr$("1") Send Command Parameter
MSComm1.Output = Chr$(CStr(240)) Send CR
I need to convert the code using VB2010, but Chr$ is not available, and anything I tried will not send the actual ascii code character......
Send A Control String From .NET To A Serial Port?
Aug 5, 2010I am trying to send a control string from VB.NET to a serial port. I am using a pololu trex jr. on the receiving end of the serial port. I have attached a copy of my current code which compiles without errors, but fails to send data. I can tell that it is not sending data because I have a light on the control board connected to the port and it normally blinks when data is received. The program that came with the board drives it perfectly but does not serve the purpose I need it to. I am open to any suggestions as I eventually plan to write a class to contain the control routines.
View 12 RepliesSend And Receive Data From A Serial Port?
Jul 8, 2011I have created a program to send and receive data from a serial port, some of the data needs to be stored in certain strings for a export to excel. However the data takes while to to send be sent back. So in order to get the right information in the right strings I have to put pauses in my code. I have added a timer to my form:
On my timer's tick event I have the following code:
Public Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
iTick = iTick + 1
End Sub
Send Data : String Through Serial Port?
Mar 11, 2010i knew Serial ports are a type of computer interface that complies with the RS-232 standard. They are 9-pin connectors that relay information, incoming or outgoing, one byte at a time. Each byte is broken up into a series of eight bits, hence the term serial port.And I want to write a program chatting through Serial Port.
View 3 RepliesSend String Through Serial Port To Arudino?
Apr 18, 2012im very new to visual basic. as in i just started 2 days ago. Currently i have a little program written up that has a couple of radio buttons and then a submit button. when you select a radio button and click the submit button, a little message box with pop up and say "you selected such and such"
Well now im trying to make something that will send a string to arduino through the usb cable. Basically it will use the same set up as stated above but instead of a pop up message it will just send the string through the port. for example Radiobutton1 - when selected and submit button pressed will send "1" (no quotes) through the serial port Radiobutton2 - when select and submitted will send "1" and then maybe "3"
and so on and so. Some radio buttons will only send 1 string through them and some may send multiple. Now, i dont need help with arduino, i have that already set up to wait for the strings to come through the com port. just need to figure out how to do it in VB.
VB 2010 Send Hex Values Across The Serial Port
Jul 18, 2011I want to send hex values across the serial port. I know, I know, your thinking not this again. But what I need to do does not seem to be addressed, or I am some how missing it when I search around.
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VS 2008 Serial Port Can't Get To Send Strings
Dec 8, 2010I've set up two computers, with a null modem serial cable. When trying the connection in two Realterm windows it works ok to send strings.I'm trying to write a simple project that sends the timestring over the same port.One button sends the timestring. I've created one other sub "AppendLabel" that just updates a label.text so I can see what's happening.[code]
View 8 RepliesCommunications :: Send 8-10 Character Strings From The PC Serial Port?
Dec 1, 2011I have quite a bit of VB6 experience but now am trying to create my first VB.Net project. The project is very simple - it just needs to send 8-10 character strings from the PC serial port. The problem I'm seeing is that VB.Net is always sending out a 0x0A character after each 'WriteLine' call. Using VB6 it was necessary to manually send out any End Of Line characters. My application requires that no extra EOL characters be sent after the string.
View 2 RepliesSend Data On Serial Port And Detecte It In Same Program?
Feb 24, 2011I am supposed to make a software for data logging via serial port but the hardware is expected to be delayed and iam required to continue with the programming of the software. What i need is that by some mechanism i want to send data on serial port (COM port) and after delay of some mili seconds i want to detect that data. I actually want to do this because i want to create environment like my software i intercepting COM port and on receiving data it captures the data values on port and record them to database. I have done most the work, the only thing left which i want is as above how i will send data on COM port (this was to actually to be done by hardware) and detect it in my program (same program from which data was sent). Please guide from where should i start.
View 3 RepliesSend XML Commands In Vb To Get Data Received Over A Serial Port
May 5, 2011How do I send XML commands in vb to get data received over a serial Port?
I know the commands I'm just not sure how to send them.
Use A Textbox To Send Binary Data To Serial Port
Sep 1, 2009I am currently sending data via a serial port to an AVR microcontroller. I've tried searching the forums here first but haven't found any posts that specifically deal with what I'm trying to do. Here's some additional information that might help before proceeding:
Sendbox = textbox
ReceiveBox = listbox
ReceiveChk = checkbox
I currently have it setup so I enter hex data in Sendbox, click the button, it sends the data to the AVR micro via the serial port, which gets repeated back through the serial port and receives the hex data in the ReceiveBox. I want to be able to setup something similar so I am able to input data into a textbox as binary and have it sent to the AVR that way.
I realize it will send the same data whether I enter it in hex or binary form. I just want the option of being able to send it in either form.
Below is my code.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SendButton.Click
SerialPort1.Open()
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Serial Port Communications - AT Commands - Send And Receive Data
Apr 12, 2009I have a USB modem that can detect caller ID and can detect dialled digits when special AT commands activated, How to send and receive data. The sent data will be the AT command such as AT+VCID-1 to activate the caller ID, the received data will be caller ID information and the digits dialed. I'm new to prgramming and using Visual Basic 2008 Express.
View 8 RepliesReading Serial Port Read Data From Serial Port?
Aug 16, 2011i am a absolute beginner and i want to use vb to receive data from micro controller through serial port using rs232 standards, i found this code to receive the data serially, can any one tell me where should i paste this code, so that the data received will be displayed in message box.Private Sub DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) HandlesSerialPort1.DataReceived
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Serial Port Example Code - Connect To A Modem Thru The Serial Port
Oct 26, 2011The link below has code to connect to a modem thru the serial port but it is for an earlier version of VB. when I convert the code, it does not fully convert and has 4 errors that prevent building the project. can someone tell me what needs to be changed or added?
[URL]
Note: the error: not CLS-Compliant
Unable To Close Serial Port After USB / Serial Converter Disconnected
Mar 28, 2006I have a stand alone VB.Net 2005 application that uses a serial port that generally stays open while the application runs on a Windows XP system. In trying to bullet-proof the UI, I ran into a problem when the USB to Serial Converter normally used to provide the serial port is disconnected while the serial port is open. In trying to handle the resulting error when accessing the port, I find I cannot close the port.
When trying to do so, the error message says something like "unable to close the port. You may not have sufficient permissions." Reconnecting the USB/Serial Converter does not reactivate the port.
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Read The Data From Barcode Weight Scales By Serial Port And TcpIp Port?
Nov 27, 2010I'm mohammed from Oman ,I'm visual studio.net programmer How I can Read the Data From Barcode Weight scales By Serial port and TcpIp port
View 7 RepliesGet FullName From Available Serial Port (Com Port) From Device Manager In Windows Form With .net?
Jul 25, 2011I have a Windows form.in windows form have a combo box that give me a list of available port serial with it code (Dim ports As String() =SerialPort.GetPortNames())for example( Com1,Com8,Com15,...).but I want to give me fullname of serial port in device manager for example in dvice manager is these (Comunication Port(COM1) - Printer Port(LPT1) And USB Serial Port(COM8)).how to Get it?
View 2 RepliesThe Given Port Name Does Not Start With COM/com Or Does Not Resolve To A Valid Serial Port?
Aug 2, 2011If I uninstall the COM1 and reboot, it works. If I shut down (power off) and restart, I get the message below. If I uninstall then click on Scan for Hardware Changes,The given port name does not start with COM/com or does not resolve to a valid serial port. Parameter name:portName
View 8 RepliesCannot Send Keystrokes Via Sendkeys
Mar 25, 2009Dim NotePadProcess As Process = New Process()
NotePadProcess .StartInfo.FileName = "notepad"
NotePadProcess .StartInfo.WindowStyle = ProcessWindowStyle.Normal
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I am trying to send some keys to a program that I launched, but every time i send the keys focus is not on the program and the keys are sent to the wrong program. Is there a better way to send keys to a program or a way to set focus on a certain program?
Send Keystrokes In Program?
Jan 23, 2010How to send keystrokes in v.net automatically ..
View 1 RepliesSend Keystrokes To A Different Application?
Jul 26, 2009I am using visual basic code, specifically the sendkeys.send method, to send keystrokes to a different application, in my case Acrobat Reader. Here is my problem. I am sending instructions and text to define a path to a file I want to open in Acrobat Reader. Every keystroke is being sent and interpreted in Reader correctly except the Colon. This is the line of code I am using:Sendkeys.send("C:")
I have tried every variation of this simple line of code I can think of, but the result is the same. Reader for some reason wants to interpret the Colon as Uppercase Q, so what I get is CQ. This of course totally messes up my path to the file I want to open.Sendkeys. sendwait("C:") Behaves the same
I understand there are timing issus with this method so I have added code to my app.config file suggested in this forum for taking care of the timing issue. I have also inserted delays into the execution of the program steps. Nothing I have done solves this problem.I wonder if anyone else has experienced this or a similar problem and if so what was done to correct it.
.net - Send Keystrokes Only To The Form And Not Other Window?
Mar 13, 2011How do I make the form send keystrokes such as Tab, Enter, Left Arrow etc to itself without interfering with other programs? If I use the SendKeys.Send method, it would send it to whatever window is opened. Is there a way to only work with the form? Very quick random example: Let's say I have 5 textBoxs and I click the 'Tab' button 5 times. What would happen ?
It would change the focus from one textbox to another right? Can I make this happen automatically ... like make it happen in the background and only to the form itself. So If I'm typing something on Notepad, I don't want to receive those 5 tabs. By the way I know I can use this code to change the fofucs, but remember its only an example.
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How To Send Keystrokes To Specific Window
Dec 19, 2008In Visual Basic 2008 Express Edition, how would I send keystrokes to a specific window. Right now, I just keep the window I want on top and use sendkeys.send("{enter}"). The window that I want to send keystrokes to is my applications window.
View 13 RepliesSend Keystrokes To An Instance Of Webbrowser
Aug 16, 2010I cannot seem to wrap my head around the SendMessage function/method. What I am trying to do is send keystrokes to an instance of webbrowser1 within my vb.net application. Can someone give me a decent example of the code I would need to create to process this using the keystrokes below.
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Send Keystrokes To An Unfocused Window?
Jan 8, 2010I'm trying to send the keys "ABC" and "Enter" to Notepad when I press a button. I've been reading forever on Hooks, "SendKeys" functions, but I can't figure it out. I don't think I need to use a hook, because I'm not making a hotkey or anything, I'm just pressing a button and sending the keystrokes to a window when it's not focused.
View 7 RepliesSend Keystrokes To Background Application?
Jul 20, 2010how to send keystrokes to an application that does not have focus and is not selected. i have read about sendmessage, but am not sure how to use it or anything, not even sure if its what i need.i dont need to send anything but normal character keystrokes?im using VS 2008?
View 23 RepliesVS 2010 Send Keystrokes To Other Apps?
Jan 27, 2011i am making an app for my media server, but now i ran into a little problem. Once i press pause on my app, i want it to pause my VLC player. One way is to press Space bar in VLC. Is there any way to send the Space bar key to VLC? (or is this not possible in VB.net, If not: witch coding language should i use?)
View 1 RepliesDetect Keystrokes And Send Mouse Clicks
May 31, 2007hello,
i'm trying to build a application for my buddy who plays online games and has asked for a simple program to click the mouse button within his game that he plays for a certain amount of time with a certain duration between. my questions comes ( and i searched but didnt find much useful information for .net framework anyway) about how to detect a combination of keystrokes to start an action and further more to send a click event to the game that should be main focus. i'd also appreciate any tutorials on sending information to other forms controls etc.
thank you for any help