DDEDATA

The DDEDATA structure contains the data, and information about the data, sent as part of a WM_DDE_DATA message. This structure supersedes the DDEUP structure.

typedef struct { // ddedat 
    unsigned short unused:12, 
        fResponse:1, 
        fRelease:1, 
        reserved:1, 
        fAckReq:1; 
    short cfFormat; 
    BYTE  Value[1]; 
} DDEDATA; 
 

Members

fResponse

Indicates whether the data was sent in response to a WM_DDE_REQUEST message or a WM_DDE_ADVISE message. If this value is nonzero, the data was sent in response to a WM_DDE_REQUEST message.

fRelease

Indicates whether the application receiving the WM_DDE_POKE message should free the data. If this value is nonzero, the application should free the data.

fAckReq

Indicates whether the application receiving the WM_DDE_DATA message should acknowledge receipt of the data by sending a WM_DDE_ACK message. If this value is nonzero, the application should send the acknowledgment.

cfFormat

Specifies the format of the data. The format should be a standard or registered clipboard format. The following standard clipboard formats can be used:

CF_BITMAP
CF_DIB
CF_DIF
CF_ENHMETAFILE
CF_METAFILEPICT
CF_OEMTEXT
CF_PALETTE
CF_PENDATA
CF_RIFF
CF_SYLK
CF_TEXT
CF_TIFF
CF_WAVE
CF_UNICODETEXT

Value

Contains the data. The length and type of data depend on the cfFormat member.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in dde.h.

See Also

Dynamic Data Exchange Overview, Dynamic Data Exchange Structures, DDEUP, WM_DDE_ACK, WM_DDE_ADVISE, WM_DDE_DATA, WM_DDE_POKE, WM_DDE_REQUEST