COM Port Sample
This sample demonstrates how to control a communications port.
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.gif "Security note") Security Note: |
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This sample code is intended to illustrate a concept, and it shows only the code that is relevant to that concept. It may not meet the security requirements for a specific environment, and it should not be used exactly as shown. We recommend that you add security and error-handling code to make your projects more secure and robust. Microsoft provides this sample code "AS IS" with no warranties. |
To run this sample
- Press F5.
Requirements
This application requires a modem installed on one of the COM ports.
Demonstrates
How to determine which COM ports are available.
How to use a COM port to communicate with a modem.
How to use Win32 API calls to control communication with the COM port.
See Also
Tasks
How to: Dial Modems Attached to Serial Ports in Visual Basic