ddetopic_return_server_topic_.htm
| Navigation: Language Reference > App A - DDE, OLE, and OCX > DDE Procedures >====== DDETOPIC (return server topic) ====== |    |
DDETOPIC( )
The DDETOPIC procedure returns a string containing the topic name for the DDE channel that has just posted a DDE event.
Return Data Type: STRING
Example:
WinOne WINDOW,AT(0,0,160,400)
END
TimeServer LONG
DateServer LONG
FormatTime STRING(5)
FormatDate STRING(8)
CODE
OPEN(WinOne)
TimeServer = DDESERVER('SomeApp') !Open as server
ACCEPT
CASE EVENT()
OF EVENT:DDErequest
CASE DDETOPIC() !Get requested topic
OF 'Time'
FormatTime = FORMAT(CLOCK(),@T1)
DDEWRITE(TimeServer,DDE:manual,'Time',FormatTime)
OF 'Date'
FormatDate = FORMAT(TODAY(),@D1)
DDEWRITE(DateServer,DDE:manual,'Date',FormatDate)
END
END
END
See Also:
ddetopic_return_server_topic_.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1