4/13/2023 0 Comments Delphi 7 serial port component![]() Originally, the COM port was the name of the serial port interface of IBM-PC compatible computers. The ComPort Library contains code to access COM Ports. When USB COM port disconnected error occures, handler OnAfterClose is executed and exception "Port Disconnected" (TComException = CE_PortDisconnected) is generated. Solution isn't perfect and still is possible to suspend application on infinite WaitForSingleObject, especially in the case of very slow transmission speeds (300-600 bauds), but it's a lot better than before. ComPort library with USB COM port disconnected issue fixed.
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