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SYNTAX:
 
xpxGetByte(fileId       : INTEGER;
            VAR readByte : STRING (1) FIXED)            status       : INTEGER
 
The xpxGetByte function will return a single byte read from the current byte position of the specified open file fileId in the argument readByte. The built in constant XPXEOF is returned as status when the current byte position is at end of file. In this case the value of readByte is undefined.

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