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Overview |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| -
| Header File
| ddeml.h
| Unicode
| No
| Platform Notes
| None
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XTYP_EXECUTE
XTYP_EXECUTE
A dynamic data exchange (DDE) server callback function receives the
XTYP_EXECUTE transaction when a client specifies XTYP_EXECUTE in the DdeClientTransaction function. A client uses this transaction to send a command string to the
server.
Parameters
uFmt
Not used.
hconv
Identifies the conversation.
hsz1
Identifies the topic name.
hsz2
Not used.
hdata
Identifies the command string.
dwData1
Not used.
dwData2
Not used.
Return Values
A server callback function should return DDE_FACK if it processes this
transaction, DDE_FBUSY if it is too busy to process this transaction, or
DDE_FNOTPROCESSED if it rejects this transaction.
Remarks
This transaction is filtered if the server application specified the
CBF_FAIL_EXECUTES flag in the DdeInitialize function.
An application must free the data handle obtained during this transaction. An
application must, however, copy the command string associated with the data
handle if the application must process the string after the callback function
returns. An application can use the DdeGetData function to copy the data.
Because most client applications expect a server application to perform an
XTYP_EXECUTE transaction synchonrously, a server should attempt to perform all
processing of the XTYP_EXECUTE transaction either from within the DDE callback
function or by returning the CBR_BLOCK return code. If the hdata parameter is a command that instructs the server to terminate, the server
should do so after processing the XTYP_EXECUTE transaction.
See Also
DdeClientTransaction, DdeGetData, DdeInitialize
Related Links
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Unix Manual Pages
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