DisconnectFromDDEServer
- Updated2023-02-21
- 2 minute(s) read
DisconnectFromDDEServer
int DisconnectFromDDEServer (unsigned int conversationHandle);
Purpose
Terminates a connection between the client and the server.
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Note DisconnectFromDDEServer ends only the client–server conversation that conversationHandle identifies. Multiple, concurrent conversations can exist between a client and a server. |
DisconnectFromDDEServer returns zero for success or a negative error code for failure.
Parameters
| Input | ||
| Name | Type | Description |
| conversationHandle | unsigned int | The conversation handle that uniquely represents the connection between the server and the client. |
Return Value
| Name | Type | Description |
| status | int | Return value indicating whether the function was successful. A negative number represents the error code. For functions that read or write data (ClientDDERead, ClientDDEWrite, ServerDDEWrite, AdviseDDEDataReady, BroadcastDDEDataReady), if the function was successful, the return value is the number of bytes transferred. For other DDE Support Library functions, zero represents successful execution. The enumerated type that specifies the absolute values of the error codes is declared in ddesupp.h. For instance, if an invalid parameter is passed, –kDDE_InvalidParameter is returned. Currently, a maximum of 255 concurrent conversations are allowed at any one time. If you exceed this limit, –kDDE_TooManyConversations will be returned. Error codes from –16 to –33 are native DDEML errors, which correspond to Windows DDE error codes starting from 0x4000. |
Additional Information
Library: DDE Support Library
Include file: ddesupp.h
LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later