The DDEPOKE structure contains the data, and information about the data, sent as part of a WM_DDE_POKE message. This structure supersedes the DDEUP structure.
typedef struct { // ddepok 
    unsigned short unused:13, 
        fRelease:1, 
        fReserved:2; 
    short cfFormat; 
    BYTE  Value[1]; 
} DDEPOKE; 
 
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