Here are the data structures with brief descriptions:

ADPCM
ARC_CS_PRIVATE_PACKET
ARC_SC_PRIVATE_PACKET
audinFormat
AV_PAIR
AV_PAIRS
BITMAP_CACHE_CELL_INFO
BITMAP_CACHE_V2_CELL_INFO
BITMAP_DATA
BITMAP_DATA_EX
BITMAP_UPDATE
BITMAP_V2_CELL
BRUSH_ENTRY
CACHE_BITMAP_ORDER
CACHE_BITMAP_V2_ORDER
CACHE_BITMAP_V3_ORDER
CACHE_BRUSH_ORDER
CACHE_COLOR_TABLE_ORDER
CACHE_GLYPH_ORDER
CACHE_GLYPH_V2_ORDER
CACHED_ICON_INFO
CHANNEL_DEF
CHANNEL_ENTRY_POINTS
CHANNEL_ENTRY_POINTS_EX
CLIPRDR_FORMAT_NAME
cliprdrPlugin
CLRCONV
CREATE_NINE_GRID_BITMAP_ORDER
CREATE_OFFSCREEN_BITMAP_ORDER
CryptoCert
CryptoDes3
CryptoHmac
CryptoMd5
CryptoRc4
CryptoSha1
DELTA_POINT
DELTA_RECT
DEVICE
DEVICE_SERVICE_ENTRY_POINTS
DEVMAN
dfContext
dfInfo
dfPointer
DISK_FILE
DomainParameters
DRAW_GDIPLUS_CACHE_END_ORDER
DRAW_GDIPLUS_CACHE_FIRST_ORDER
DRAW_GDIPLUS_CACHE_NEXT_ORDER
DRAW_GDIPLUS_END_ORDER
DRAW_GDIPLUS_FIRST_ORDER
DRAW_GDIPLUS_NEXT_ORDER
DRAW_NINE_GRID_ORDER
DSTBLT_ORDER
ELLIPSE_CB_ORDER
ELLIPSE_SC_ORDER
ERRINFO
FAST_GLYPH_ORDER
FAST_INDEX_ORDER
FRAGMENT_CACHE
FRAGMENT_CACHE_ENTRY
FRAME_MARKER_ORDER
freerdp
FREERDP_AUDIN_DEVICE_ENTRY_POINTS
FREERDP_EXTENSION_ENTRY_POINTS
freerdp_listener
freerdp_peer
FREERDP_RDPSND_DEVICE_ENTRY_POINTS
freerdp_thread
GDI_BITMAP
GDI_BRUSH
GDI_DC
GDI_PALETTE
GDI_PALETTEENTRY
GDI_PEN
GDI_POINT
GDI_RECT
GDI_RGN
GDI_WND
gdiBitmap
gdiGlyph
GDIOBJECT
GLYPH_CACHE
GLYPH_CACHE_DEFINITION
GLYPH_DATA
GLYPH_DATA_V2
GLYPH_FRAGMENT
GLYPH_FRAGMENT_INDEX
GLYPH_INDEX_ORDER
HIGH_CONTRAST
IAudinDevice
ICON_INFO
IDRDYNVC_ENTRY_POINTS
IRP
ITSMFAudioDevice
ITSMFDecoder
IWTSListener
IWTSListenerCallback
IWTSPlugin
IWTSVirtualChannel
IWTSVirtualChannelCallback
IWTSVirtualChannelManager
LICENSE_BLOB
LINE_TO_ORDER
LIST
LIST_ITEM
MEM3BLT_ORDER
MEMBLT_ORDER
MONITOR_INFO
MONITORED_DESKTOP_ORDER
MULTI_DRAW_NINE_GRID_ORDER
MULTI_DSTBLT_ORDER
MULTI_OPAQUE_RECT_ORDER
MULTI_PATBLT_ORDER
MULTI_SCRBLT_ORDER
NINE_GRID_BITMAP_INFO
NINE_GRID_ENTRY
NOTIFY_ICON_INFOTIP
NOTIFY_ICON_STATE_ORDER
NSC_CONTEXT
NSC_STREAM
NTLMSSP
OFFSCREEN_DELETE_LIST
OPAQUE_RECT_ORDER
ORDER_INFO
PALETTE_ENTRY
PALETTE_TABLE_ENTRY
PALETTE_UPDATE
PATBLT_ORDER
pcap_header
pcap_record
pcap_record_header
PLAY_SOUND_UPDATE
POINTER_CACHED_UPDATE
POINTER_COLOR_UPDATE
POINTER_NEW_UPDATE
POINTER_POSITION_UPDATE
POINTER_SYSTEM_UPDATE
POLYGON_CB_ORDER
POLYGON_SC_ORDER
POLYLINE_ORDER
PRODUCT_INFO
PROFILER
RAIL_ACTIVATE_ORDER
RAIL_CLIENT_STATUS_ORDER
RAIL_EXEC_ORDER
RAIL_EXEC_RESULT_ORDER
RAIL_GET_APPID_REQ_ORDER
RAIL_GET_APPID_RESP_ORDER
RAIL_HANDSHAKE_ORDER
RAIL_LANGBAR_INFO_ORDER
RAIL_LOCALMOVESIZE_ORDER
RAIL_MINMAXINFO_ORDER
RAIL_NOTIFY_EVENT_ORDER
RAIL_SYSCOMMAND_ORDER
RAIL_SYSMENU_ORDER
RAIL_SYSPARAM_ORDER
RAIL_WINDOW_MOVE_ORDER
railPlugin
RDP_CB_DATA_REQUEST_EVENT
RDP_CB_DATA_RESPONSE_EVENT
RDP_CB_FORMAT_LIST_EVENT
RDP_EVENT
rdp_ext_set
rdp_monitor
rdp_mppc
RDP_PLUGIN_DATA
RDP_RECT
RDP_REDRAW_EVENT
RDP_VIDEO_FRAME_EVENT
rdpAltSecUpdate
rdpBitmap
rdpBitmapCache
rdpBlob
rdpBounds
rdpBrush
rdpBrushCache
rdpCache
rdpCertBlob
rdpCertificate
rdpCertificateData
rdpCertificateStore
rdpCertInfo
rdpChannel
rdpContext
rdpCredssp
rdpdrPlugin
rdpExtension
rdpExtPlugin
rdpFastPath
rdpGdi
rdpGlyph
rdpGlyphCache
rdpGraphics
rdpIcon
rdpIconCache
rdpInput
rdpKey
rdpKeyboardLayout
RdpKeycodeRec
rdpLicense
rdpListener
rdpMcs
rdpNego
rdpNineGridCache
rdpOffscreenCache
rdpPalette
rdpPaletteCache
rdpPcap
rdpPeerChannel
rdpPointer
rdpPointerCache
rdpPointerUpdate
rdpPrimaryUpdate
rdpPrinter
rdpPrinterDriver
rdpPrintJob
rdpRail
rdpRailOrder
rdpRdp
rdpRedirection
rdpRegistry
rdpSecondaryUpdate
rdpSettings
rdpsndDevicePlugin
rdpsndFormat
rdpString
rdpSvcPlugin
rdpTcp
rdpTls
rdpTransport
rdpUpdate
rdpWindow
rdpWindowList
rdpWindowUpdate
rdpX509CertChain
RECTANGLE_16
REG_ENTRY
RFX_BITSTREAM
RFX_CONTEXT
RFX_CONTEXT_PRIV
RFX_MESSAGE
RFX_POOL
RFX_RECT
RFX_TILE
SAVE_BITMAP_ORDER
SCARD_DEVICE
SCOPE_LIST
SCRBLT_ORDER
SERIAL_TTY
STOPWATCH
STREAM
STREAM_BITMAP_FIRST_ORDER
STREAM_BITMAP_NEXT_ORDER
SURFACE_BITS_COMMAND
SURFACE_FRAME_MARKER
SWITCH_SURFACE_ORDER
SYSTEM_TIME
TIME_ZONE_INFO
TS_AM_MEDIA_TYPE
TSMF_IFMAN
UNICODE_STRING
UNICONV
VIRTUAL_SCREEN
virtualKey
wfBitmap
wfContext
wfInfo
wfPointer
WINDOW_CACHED_ICON_ORDER
WINDOW_ICON_CACHE
WINDOW_ICON_ORDER
WINDOW_ORDER_INFO
WINDOW_STATE_ORDER
WTSVirtualChannelManager
xfBitmap
xfContext
xfEvent
xfEventQueue
xfEventRegion
xfGlyph
xfInfo
xfLocalMove
xfPeerContext
xfPointer
xfWindow
xfWorkArea