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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
| user32.lib
| Header File
| ddeml.h
| Unicode
| No
| Platform Notes
| None
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DdeGetData
The DdeGetData function copies data from the specified dynamic data exchange (DDE) object to
the specified local buffer.
DWORD DdeGetData(
HDDEDATA hData,
| // handle to DDE object
| LPBYTE pDst,
| // pointer to destination buffer
| DWORD cbMax,
| // amount of data to copy
| DWORD cbOff
| // offset to beginning of data
| );
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Parameters
hData
Identifies the DDE object that contains the data to copy.
pDst
Points to the buffer that receives the data. If this parameter is NULL, the DdeGetData function returns the amount of data, in bytes, that would be copied to the
buffer.
cbMax
Specifies the maximum amount of data, in bytes, to copy to the buffer pointed
to by the pDst parameter. Typically, this parameter specifies the length of the buffer
pointed to by pDst.
cbOff
Specifies an offset within the DDE object. Data is copied from the object
beginning at this offset.
Return Values
If the pDst parameter points to a buffer, the return value is the size, in bytes, of the
memory object associated with the data handle or the size specified in the cbMax parameter, whichever is lower.
If the pDst parameter is NULL, the return value is the size, in bytes, of the memory
object associated with the data handle.
Errors
The DdeGetLastError function can be used to get the error code, which may be one of the following
values:
DMLERR_DLL_NOT_INITIALIZED
DMLERR_INVALIDPARAMETER
DMLERR_NO_ERROR
See Also
DdeAccessData, DdeCreateDataHandle, DdeFreeDataHandle
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