Vcl.Controls.TCMDockClient

 TCMDockClient = record
 Msg: Cardinal;
 MsgFiller: TDWordFiller;
 DockSource: TDragDockObject;
 MousePos: TSmallPoint;
 MousePosFiller: TDWordFiller;
 Result: LRESULT;
 end;

struct DECLSPEC_DRECORD TCMDockClient
{
public:
 unsigned Msg;
#ifndef _WIN64
#else /* _WIN64 */
 Winapi::Messages::TDWordFiller MsgFiller;
#endif /* _WIN64 */
 TDragDockObject* DockSource;
 System::Types::TSmallPoint MousePos;
#ifndef _WIN64
#else /* _WIN64 */
 Winapi::Messages::TDWordFiller MousePosFiller;
#endif /* _WIN64 */
 NativeInt Result;
};