DdeAccessData function (ddeml.h)
Provides access to the data in the specified Dynamic Data Exchange (DDE) object. An application must call the DdeUnaccessData function when it has finished accessing the data in the object.
LPBYTE DdeAccessData(
[in] HDDEDATA hData,
[out, optional] LPDWORD pcbDataSize
);
[in] hData
Type: HDDEDATA
A handle to the DDE object to be accessed.
[out, optional] pcbDataSize
Type: LPDWORD
A pointer to a variable that receives the size, in bytes, of the DDE object identified by the hData parameter. If this parameter is NULL, no size information is returned.
Type: LPBYTE
If the function succeeds, the return value is a pointer to the first byte of data in the DDE object.
If the function fails, the return value is NULL.
The DdeGetLastError function can be used to get the error code, which can be one of the following values:
If the hData parameter has not been passed to a Dynamic Data Exchange Management Library (DDEML) function, an application can use the pointer returned by DdeAccessData for read-write access to the DDE object. If hData has already been passed to a DDEML function, the pointer should be used only for read access to the memory object.
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | ddeml.h (include Windows.h) |
| Library | User32.lib |
| DLL | User32.dll |
Conceptual
Dynamic Data Exchange Management Library
Reference