Communications Demonstration


SUMMARY
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The COMM sample (TTY) is designed to demonstrate using the Win32 
communications functions while maintaining a common code base with 
16-bit Windows code.

MORE INFORMATION
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The program performs communications using the functions OpenFile, ReadFile, 
SetCommState, SetCommMask, WaitCommEvent, WriteFile, and CloseFile.

The program creates a background thread to watch for COMM receiver events 
and posts a notification message to the main terminal window. Foreground 
character processing is written to the communications port.

Simple TTY character translation is performed and a screen buffer is 
implemented for use as the I/O window.

Overlapped file I/O techniques are demonstrated.

Usage:

The baud rate, data bits, stop bits, parity, port, RTS/CTS handshaking, 
DTR/DSR handshaking, and XON/XOFF handshaking can be changed under the 
Settings menu item.

Once the communications settings are set, the Action menu item can be 
selected to connect or disconnect the program.