VS 2005 2.0 Serial Port Application Not Working In Windows 7
Jun 18, 2010
I am having trouble running a VB.NET 2.0 Serial Port application in Windows 7. I developed it in Windows XP, it ran fine in Windows 2000 and now when the company upgraded the machines to Windows 7, the application does not kick off. All platforms were/are 32-bit. I did some research online, but have not found anything relevant to resolve my issue. Does anyone know what the issue might be and the possible solution to it?
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Apr 12, 2011
I write program for Windows CE that should work with Serial ports. I use object System.IO.Ports.SerialPort. Everything works well but when I close program and open it again, I receive error: Port is in use! At the end I write:
port.close()
port.dispose()
And If I add this:System.GC.collect() than everything begins to work But problem is that computer gets stuck when garbage collector is called for each port. If I tried to use collector somewhere else, it doesnt "collect" ports and they look like used if program starts again.
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Jul 25, 2011
I 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?
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Dec 23, 2011
I am trying to get serial port communication working between two PC's.
My environment is: XP SP3, 9 pin serial ports on both ends, connected by a null modem cable, Visual Basic 2010 Express.
I have a sending routine and a receiving routine, both based on the on line documentation.
There are no Errors, Warnings or messages.
Problem: The receiving machine shows no sign of receiving a message sent by the sending PC. I have tried making the sending PC into the receiving PC - makes no difference.
My sending routine looks like this:
Sub SendSerialData(ByVal SendData As String)
'Send string to serial port
Using com1 As IO.Ports.SerialPort = My.Computer.Ports.OpenSerialPort("COM1", 9600, Parity.None, 8, StopBits.One)
[Code].....
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Jun 19, 2011
im using vb 2008 to read serial port data. my requirement is as follows, when the data is received from the serial port a timer is enabling in order to blink a button saying "tank empty". so i have written the code with the aid of this forums. but now my problem is the blinking button function is not working. first i thought its cuz timer is not enabling inside the serial_dataReceived event. so i invoked a dummy label. so the timer works. but its blinking function is not working.
[Code]...
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May 19, 2010
I have just purchased a new computer with windows 7 on. I have put VS2005 on and for some reason Application.startup says its not a member?
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Dec 10, 2011
Actually I have a Weigh Bridge (A Large Scale weight mechanism which weighs in Tons) , for which we use an ELECTRONIC WEIGHT INDICATOR which display the weight on its own digital screen while it has an option to connect with a pc via Serial Port,,I just want is to have its weight (Digits) in a text box of my VB.Net Program,Here I want to mention that I know technical settings of my weight machine such as
Bite Per Second
Data Bits
Parity
Stop Bits
Etc,,,
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Aug 16, 2011
i 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
[Code]...
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Oct 26, 2011
The 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
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Mar 14, 2010
I have a problem with my program. i can't read any data from serial port. when i click on open the rs232 has to read but it doesn't.i use the program in a pdf(ADAM-4000_Ed-15).[code]
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Jan 13, 2009
My app runs perfectly with debug but I'm having a couple of little problems with the actual build on another machine.'m getting a "safe handle has been closed" (most of the time, but not all the time) when I button click out of a certain area.The problem, no doubt, is related to the serial port and I think I can solve it but I do want to ask something very basic....I have several points in the code where I'm doing a serialport.open and serialport.close....and clearing some registers etc.....like I say, in debug all is well.
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Jun 16, 2010
I am using MSCOMM (mscomm32.ocx) for serial Comm. using VB.NET 2005:
Receiving Error: "AxMSComm1.Output {"Exception from HRESULT: 0x800A018A (CTL_E_GETNOTSUPPORTED)"} Object "
How to resolve this Issue, Below is the code snippet which i am using. [Code]
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Jul 18, 2009
I need to write an application for receiving data (ascii characters) from microcontroller through the serial port in three separate parts. I've created three RichTextBoxes, but I do not know which commands I need to type. In first textbox I need to receive one byte... next six bytes need to be placed in second text box, and finally last seven bytes need to be placed in third textbox.
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Mar 28, 2006
I 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.
[Code]...
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Nov 27, 2010
I'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
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Aug 2, 2011
If 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
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Aug 8, 2011
I have embedded the WMP control in my Visual Studio 2010 app which works on windows 7 (Framework 4.0), but installing the app on winXP, I get the following error:
System.IO.FileNotFoundException: Could not load file or assembly 'Interop.WMPLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.
File name: 'Interop.WMPLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'
[code]....
WRN: Assembly binding logging is turned OFF.To enable assembly bind failure logging, set the registry value [HKLMSoftwareMicrosoftFusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.To turn this feature off, remove the registry value [HKLMSoftwareMicrosoftFusion!EnableLog].
I guess this is a reference issue, but I have added references to WMP libraries (axinterop.wmplib.dll and interop.wmplib.dll). The WMP works on the XP machine, but not when called from my application.I have searched the web now for 5 days and changed references, and reinstalled the media player on the XP machine, but nothing works.
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Oct 15, 2008
Im having problem with the Serial Port. When i run my program, "Access to the port 'COM1' is denied". What does that mean? Im not sure whats happening because theres no error in my code. Someone suggest me to use 'COM2'. Which is also the same result. I have a microcontroller, programmed and run it. And i need to capture the data onto my vb, which is on a multiline textbox. How to i do that?Just to double check my code?
[code]...
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May 2, 2009
I have a timer routine (basically just a timing loop) that moves shapes around the screen. The problem is that it isn't in sync with Windows (Vista). If a Windows background program runs (like an antivirus) the screen goes gray. The timing routine still runs but the display is shut off. Only when the shapes are done moving does the screen return to normal (but I didn't actually see the shapes move). Another good example of my issue is when I finish debugging and press the Start button, again I don't see the shapes move, I just see a grayed out screen with the cursor in "busy" mode.
All the other VB.NET programming I've done doesn't assume so much control as this timing loop. I've never had to worry about coordinating a routine with other windows functions. What's the trick to getting this stuff to work together smoothly?
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Jun 24, 2011
I am trying to get an application installed on a friends computer, written in VB 2008 Express. However, he continues to receive the Windows Application 1 stopped working message whenever he launches it.
He states that there are not any error details, and I am in a different state so I cannot even begin to diagnose the situation, so this is all I have to work with. Are there any suggestions where I can even begin to look that would cause this? He is on Win7. which is what I developed the app on. The program is pretty simple, and utlizes sql server r2. Any suggestions on some starting points to check? I have run it on 6 or 7 other computers with no problems.
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May 5, 2010
i have developed windows application using VS 2005 to print PDF documents using third party software PDFCreator. This application is working fine in my system but when i try it another system its not working and there is no error thrown as well.
Sample code which i use in my application is given below:
Dim PDFCtrl as new PDFCreator.clsPDFCreator
PDFCtrl.cPrintFile("c:file1.pdf")
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Jun 23, 2010
I have VB.Net application that has worked fine for years on XP and Windows 7. For some reason the last update I put out does not run even the simplest VB commands.Simple Environ() fails.I have tried putting simple VB commands onto a MsgBox on the start of the app and everything raises an error. I have no idea what is going on! The exact same app runs fine on Windows 7 clients. All the XP machines including a fresh XP virtual machine with the .Net 3.5 framework even gives the errors. No VB commands are working. I thought maybe something happened to my vbproj files, so I copied an older one from a couple weeks ago when things worked fine and it still does not work.
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Nov 18, 2011
I have tried to control another application to automate a process we do 100 times a day. It is simple enough, a few key strokes is all but I have been foiled in all attempts
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Jun 3, 2012
I am trying to buld a DLL in VB.NET 2010 that will be use to control a vending machine.Whin a call into the DLL to a function to open and setup the comport the first time its opens it just fine, but if a call into the DLL again it does not know that the port is open even if it is still open. I can check with another program and is shows the port is open and if I try to call into the DLL again to open the port I get an error that the port is already open. Any idea how to set this up so it will work
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Jun 3, 2011
I'm trying to use the Shell to have my application call an external application but its not working...I don't understand why. I get the following error: 'System.windows.shell' is a namespace and cannot be used as an expression!
Heres my code....any ideas what I'm doing wrong. Its got to be a simple...stupid error.
Private Sub mnuUpgrade_Click(ByVal Ctrl As Microsoft.Expression.Web.Interop.Legacy.CommandBarButton, ByRef CancelDefault As Boolean) Handles mnuUpgrade.Click
[CODE].....................
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Apr 13, 2011
I currently have a simple crystal reports application which generates a crystal report and in the built in viewer provided by VS2005. There is a drop down where you can select options to change the criteria of the report. I wish to convert this app to a windows executable which will take all those select options and generates pdfs based on the crystal report. the executable will be triggered by windows task scheduler...or maybe command line app?
Obviously this will be somewhat of a re-write. What would be the best way to start this as? a crystal report application or a windows application.
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May 16, 2009
I made my program and now I just need to add in the serial and trial part of the application. I know the application must connect to the host and go to a txtfile. How would i do the trial and serial. Also If the serial is already activated I want the application to reject that Serial and Count how many times they entered in a wrong serial.
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Nov 16, 2008
I refer to the CompileExecutable function at.>> [URL] I have attempted to try and get it working for a Windows Forms based application from about my 4th post in this thread.>> [URL] Has anyone had any success in using it or a variation of it? links to VB.Net tutorials see here.>> [URL]
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Dec 30, 2009
i'm creating a windows form to send/receive data to/from serial port.At first : i send the data as string to the serial port .Second: i tried to read the string again for test the successfull transmission , but i recieved empty string
[Code]...
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Oct 21, 2011
I can find documentation (preferably with code samples) that will guide me through all the steps to activate and read from a serial port?
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