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INWORD()
Reads in a 16-bit word from a port
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Syntax
INWORD(<nPort|cHexPort>) --> nWord
Argument
<nPort|cHexPort> Designates a port address from which a word with a
16-bit value is read. This value can be a decimal integer or
hexadecimal string.
Returns
INWORD() returns the word read from the designated port, or a value of -
1 when an error occurs.
Description
Clipper Tools always attempts to offer finished solutions at the
highest-possible level for such standard hardware as a serial interface
port. However, if you read highly specialized systems and their ports
from Clipper, use INBYTE() or INWORD(). INWORD() allows you to read
from interfaces that return the data from a port as a 16-bit value.
Note
. A returns random value for a nonexistent port or one that
cannot be read.
Examples
Show a read from a 16-bit port:
. With a decimal parameter:
? INWORD(512) // Read from an additional device
. With a hexadecimal parameter:
? INWORD("200") // The same port address
See Also: INBYTE() OUTWORD() NUMHIGH() NUMLOW()
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