DDE functions and events

The following tables list the DDE functions and events separated into those functions and events used by DDE clients and those used by DDE servers. For more information on DDE support, see the PowerScript Reference.

Return values Every DDE function returns an integer.

DDE client

**Table 18-1: DDE client functions**
Function	Action
CloseChannel	Closes a channel to a DDE server application that was opened using OpenChannel.
ExecRemote	Asks a DDE server application to execute a command.
GetDataDDE	Obtains the new data from a hot-linked DDE server application and moves it into a specified string.
GetDataDDEOrigin	Determines the origin of data that has arrived from a hot-linked DDE server application.
GetRemote	Asks a DDE server application for data. This function has two formats: one that uses a channel and one that does not.
OpenChannel	Opens a DDE channel to a specified DDE server application.
RespondRemote	Indicates to the DDE server application whether the command or data received from the DDE application was acceptable to the DDE client.
SetRemote	Asks a DDE server application to set an item such as a cell in a worksheet or a variable to a specific value. This function has two formats: one that uses a DDE channel and one that does not.
StartHotLink	Initiates a hot link to a DDE server application so that PowerBuilder is immediately notified of specific data changes in the DDE server application.
StopHotLink	Ends a hot link with a DDE server application.

**Table 18-2: DDE client event**
Event	Occurs when
HotLinkAlarm	A DDE server application has sent new (changed) data.

DDE server

**Table 18-3: DDE server functions**
Function	Action
GetCommandDDE	Obtains the command sent by a DDE client application
GetCommandDDEOrigin	Determines the origin of a command from a DDE client
GetDataDDE	Gets data that a DDE client application has sent and moves it into a specified string
GetDataDDEOrigin	Determines the origin of data that has arrived from a hot-linked DDE client application
RespondRemote	Indicates to the sending DDE client application whether the command or data received from the DDE application was acceptable to the DDE server
SetDataDDE	Sends specified data to a DDE client application
StartServerDDE	Causes a PowerBuilder application to begin acting as a DDE server
StopServerDDE	Causes a PowerBuilder application to stop acting as a DDE server

**Table 18-4: DDE server events**
Event	Occurs when
RemoteExec	A DDE client application has sent a command
RemoteHotLinkStart	A DDE client application wants to start a hot link
RemoteHotLinkStop	A DDE client application wants to end a hot link
RemoteRequest	A DDE client application has requested data
RemoteSend	A DDE client application has sent data