typedef struct channel_caps_tag {
    DWORD       dwFlags;                
    DWORD       dwSrcRectXMod;          
    DWORD       dwSrcRectYMod;          
    DWORD       dwSrcRectWidthMod;      
    DWORD       dwSrcRectHeightMod;     
    DWORD       dwDstRectXMod;          
    DWORD       dwDstRectYMod;          
    DWORD       dwDstRectWidthMod;      
    DWORD       dwDstRectHeightMod;     
} CHANNEL_CAPS, NEAR *PCHANNEL_CAPS, FAR * LPCHANNEL_CAPS;