DdeGetData function (ddeml.h)

Copies data from the specified Dynamic Data Exchange (DDE) object to the specified local buffer.

Syntax

DWORD DdeGetData(
  [in]            HDDEDATA hData,
  [out, optional] LPBYTE   pDst,
  [in]            DWORD    cbMax,
  [in]            DWORD    cbOff
);

Parameters

[in] hData

Type: HDDEDATA

A handle to the DDE object that contains the data to copy.

[out, optional] pDst

Type: LPBYTE

A pointer 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.

[in] cbMax

Type: DWORD

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.

[in] cbOff

Type: DWORD

An offset within the DDE object. Data is copied from the object beginning at this offset.

Return value

Type: DWORD

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.

The DdeGetLastError function can be used to get the error code, which can be one of the following values:

Requirements

See also

Conceptual

DdeAccessData

DdeCreateDataHandle

DdeFreeDataHandle

Dynamic Data Exchange Management Library

Reference