Activex com serial port

Try Now. Contact Sales. Monitor already opened ports Start monitoring the port that has already been opened by another application. Serial Port Monitor ActiveX will tell you which application exactly has opened the port. You can stop monitoring the port the same way, without the need to close the port first. Monitor all serial port activity in your system Serial Port Monitor ActiveX will let your application sniff all communication between application and serial port.

Serial Port Monitor component features a complete set of methods, events and properties to let you intercept all data that has been sent to a port, any changes to port's settings and track everything that happens to the port.

Monitor an unlimited number of serial ports Monitor only one or all the ports in your system, as Serial Port Monitor ActiveX lets you monitor an unlimited number of serial ports. The character sequence that forms a newline. Default value: the CR carriage return string. Most frequent used newline strings:.

By default, LogFile holds the empty string and nothing is logged. If you assign a valid file name to it, all device commands and responses will be written to this log file. The number of installed Windows telephony devices. Check the LastError property to see if the method was completed successfully. Returns the n-th telephony device of the system.

The number n can be between 0 and GetDeviceCount The name of the device. Call the LastError method to see if the method was completed successfully. The name of the device can be assigned to the Device property to open a Windows telephony device. Open the comport. The Device indicates to port to open. Always 0. Check LastError property to see if the method was completed successfully. This method reads a string of data from the device. The method returns when either a string, terminated by a NewLine , is read from the device, or when the time specified by ComTimeout has elapsed.

In case of a timeout, the empty string will be returned and LastError will indicate a time-out. The string that was read from the device. In case of a timeout, the empty string is returned, and LastError will indicate a time-out. Finally NewLine is sent to the device. This method reads one byte of data from the device. The method returns when either a byte is read from the device, or when the time specified by ComTimeout has elapsed.

In case of a timeout, LastError will indicate a time-out. The byte that was read from the device. In case of a timeout, the LastError will be set to indicate a timeout. This method reads a stream of binary data from the device. The method returns when when the time specified by ComTimeout has elapsed. If data was read from the port, 0 will be returned; in case of a timeout without data being read from the port, the LastError property will indicate a timeout.

If a COM port is already opened and you changed the baudrate or Software Flow Control , you must this method to let the changes take effect. This method can be used in your script anywhere you want; it will suspend the program. One paramter is required: the number of milliseconds you want to suspend. Use SaveLicenseKey to store the license key permanently in the registry.

When a license key is saved, it is restored automatically every time a new instance of the object 'ComPort' is created. It is not recommended to save the license key if you distribute the component with your own software, because the key can be easily used by others. For more information, see Product Activation. When a method is called, the result of the method is stored in the object's LastError property. When LastError is 0, it means that the last called method completed successfully; otherwise, an error occured.

The value of the LastError tells you why the method failed. All error codes are listed on the ActiveXperts web site:. You can also call the GetErrorDescription method to find the error description. Samples for Visual Basic, Visual Basic. You can also find the samples on our website at ftp. Please contact our website for support questions about this product, or send an email to our support-staff:.

Please visit www. Here, you can also find the latest prices. You can also contact us via email: sales activexperts. You can unlock the component by using the LicenseKey property. This way, the license is NOT stored in the registry of the computer.

This is the recommended way when distributing this component with your own software. When the license key is entered during Setup AxSerialSetup. Once the license key is stored in the registry, the LicenseKey property will be assigned automatically with that value each time the object is instantiated. You can enter the license key manually e. You can enter the license key by calling the SaveLicenseKey method. You need to call SaveLicenseKey only once. For information about how to use the registration code with a Distribution License, please read the following document: How to distribute an ActiveXperts Component.

Index 1. Introduction 1. Architecture 2. System Requirements 2. Operating System 2. Internet Information Server 3. Installation 3. Introduction 3. Installation Automatic 3. Installation Manual 4. How to use 4. No programming is required Just drop a control on a form in any development environment and compare this to writing thousands of lines of code.

Download Learn more. Quick specs OS: Windows , Version: 2. Follow Us. You may also be able to use Java. You can create an ActiveX wrapper to. Net which has a fair amount of support for serial devices. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 12 years, 10 months ago.

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