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**DDESERVER(** [ //application// ] [, //topic// ] **)**

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| **DDESERVER** | Returns a new DDE server channel number. |
| //application// | A string constant or variable containing the name of the application. Usually, this is the name of the application. If omitted, the filename of the application (without extension) is used. |
| //topic// | A string constant or variable containing the name of the application-specific topic. If omitted, the //application// will respond to any data request. |

The **DDESERVER** procedure returns a new DDE server channel number for the //application// and //topic//. The channel number specifies a //topic// for which the //application// will provide data. This allows a single Clarion //application// to register as a DDE server for multiple //topics//.

**Return Data Type:     **LONG

**Example:**

**DDERetVal  STRING(20)**

**WinOne   WINDOW,AT(0,0,160,400)**

**          ENTRY(@s20),USE(DDERetVal)**

**         END**

**MyServer LONG**

** CODE**

** OPEN(WinOne)**

** MyServer = ****DDESERVER****('MyApp','DataEntered')  !Open as server**

** ACCEPT**

**  CASE EVENT()**

**  OF EVENT:DDErequest           !As server for data requested once**

**   DDEWRITE(MyServer,DDE:manual,'DataEntered',DDERetVal) !Provide data once**

**  OF EVENT:DDEadvise            !As server for constant update request**

**   DDEWRITE(MyServer,15,'DataEntered',DDERetVal)**

**                                !Check for change every 15 seconds**

**                                !and provide data whenever changed**

**  END**

** END**

**See Also:**

[[ddeclient  return dde client channel .htm|DDECLIENT]]

[[ddewrite  provide data to dde client .htm|DDEWRITE]]