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Overview |
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Group |
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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_MONITOR
XTYP_MONITOR
The dynamic data exchange (DDE) callback function of a DDE debugging
application receives the XTYP_MONITOR transaction whenever a DDE event occurs in the
system. To receive this transaction, an application must specify the
APPCLASS_MONITOR flag when it calls the DdeInitialize function.
Parameters
uFmt
Not used.
hconv
Not used.
hsz1
Not used.
hsz2
Not used.
hdata
Identifies a DDE object that contains information about the DDE event. The
application should use the DdeAccessData function to obtain a pointer to the object.
dwData1
Not used.
dwData2
Identifies the DDE event. This parameter may be one of the following values:
Value
| Meaning
| MF_CALLBACKS
| The system sent a transaction to a DDE callback function. The DDE object
contains a MONCBSTRUCT structure that provides information about the transaction.
| MF_CONV
| A DDE conversation was established or terminated. The DDE object contains a MONCONVSTRUCT structure that provides information about the conversation.
| MF_ERRORS
| A DDE error occurred. The DDE object contains a MONERRSTRUCT structure that provides information about the error.
| MF_HSZ_INFO
| A DDE application created, freed, or incremented the usage count of a string
handle, or a string handle was freed as a result of a call to the DdeUninitialize function. The DDE object contains a MONHSZSTRUCT structure that provides information about the string handle.
| MF_LINKS
| A DDE application started or stopped an advise loop. The DDE object contains a MONLINKSTRUCT structure that provides information about the advise loop.
| MF_POSTMSGS
| The system or an application posted a DDE message. The DDE object contains a MONMSGSTRUCT structure that provides information about the message.
| MF_SENDMSGS
| The system or an application sent a DDE message. The DDE object contains a MONMSGSTRUCT structure that provides information about the message.
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Return Value
If the callback function processes this transaction, it should return 0.
See Also
DdeAccessData, DdeInitialize, DdeUninitialize, MONCBSTRUCT, MONCONVSTRUCT, MONERRSTRUCT, MONHSZSTRUCT, MONLINKSTRUCT, MONMSGSTRUCT
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