Transmitting Data out
the Serial Port from MS Fox Pro
The following procedure
demonstrates how to transmit a string out the serial port by sending
a DDE command from FoxPro to WinWedge
PROCEDURE TransmitTesting
CmdString="[SENDOUT('testing
123',13)]"
*** transmit the string "testing 123" followed by a carriage
return (ascii 13)
gnChanNum = DDEInitiate('WinWedge', 'COM2')
IF gnChanNum != -1
glExecute = DDEExecute(gnChanNum, CmdString)
= DDETerminate(gnChanNum) && Close the channel
ENDIF
RETURN
*** the following procedure is a
variation of the above procedure that transmits a
*** string passed as a parameter to
the procedure (gData)
PROCEDURE TransmitData
PARAMETERS gData
cmdstring="[SENDOUT(' " & gData & " ' )]"
*** transmit the string passed in the variable gData
*** note the use of both single and double quotes around the gData
variable
*** refer to the syntax for the SENDOUT command in the Wedge manual
for details
gnChanNum = DDEInitiate('WinWedge', 'COM2')
IF gnChanNum != -1
glExecute = DDEExecute(gnChanNum, CmdString)
= DDETerminate(gnChanNum) && Close the channel
ENDIF
RETURN |
