2.2.1.5 RDPGFX_HEADER

The RDPGFX_HEADER structure is included in all graphics command PDUs and specifies the graphics command type, the transport flags, and the length of the PDU.

0	1	2	3	4	5	6	7	8	9	1 0	1	2	3	4	5	6	7	8	9	2 0	1	2	3	4	5	6	7	8	9	3 0	1
cmdId																flags
pduLength

cmdId (2 bytes): A 16-bit unsigned integer that identifies the type of the graphics command PDU.

Value	Meaning
RDPGFX_CMDID_WIRETOSURFACE_1 0x0001	RDPGFX_WIRE_TO_SURFACE_PDU_1 (section 2.2.2.1)
RDPGFX_CMDID_WIRETOSURFACE_2 0x0002	RDPGFX_WIRE_TO_SURFACE_PDU_2 (section 2.2.2.2)
RDPGFX_CMDID_DELETEENCODINGCONTEXT 0x0003	RDPGFX_DELETE_ENCODING_CONTEXT_PDU (section 2.2.2.3)
RDPGFX_CMDID_SOLIDFILL 0x0004	RDPGFX_SOLIDFILL_PDU (section 2.2.2.4)
RDPGFX_CMDID_SURFACETOSURFACE 0x0005	RDPGFX_SURFACE_TO_SURFACE_PDU (section 2.2.2.5)
RDPGFX_CMDID_SURFACETOCACHE 0x0006	RDPGFX_SURFACE_TO_CACHE_PDU (section 2.2.2.6)
RDPGFX_CMDID_CACHETOSURFACE 0x0007	RDPGFX_CACHE_TO_SURFACE_PDU (section 2.2.2.7)
RDPGFX_CMDID_EVICTCACHEENTRY 0x0008	RDPGFX_EVICT_CACHE_ENTRY_PDU (section 2.2.2.8)
RDPGFX_CMDID_CREATESURFACE 0x0009	RDPGFX_CREATE_SURFACE_PDU (section 2.2.2.9)
RDPGFX_CMDID_DELETESURFACE 0x000A	RDPGFX_DELETE_SURFACE_PDU (section 2.2.2.10)
RDPGFX_CMDID_STARTFRAME 0x000B	RDPGFX_START_FRAME_PDU (section 2.2.2.11)
RDPGFX_CMDID_ENDFRAME 0x000C	RDPGFX_END_FRAME_PDU (section 2.2.2.12)
RDPGFX_CMDID_FRAMEACKNOWLEDGE 0x000D	RDPGFX_FRAME_ACKNOWLEDGE_PDU (section 2.2.2.13)
RDPGFX_CMDID_RESETGRAPHICS 0x000E	RDPGFX_RESET_GRAPHICS_PDU (section 2.2.2.14)
RDPGFX_CMDID_MAPSURFACETOOUTPUT 0x000F	RDPGFX_MAP_SURFACE_TO_OUTPUT_PDU (section 2.2.2.15)
RDPGFX_CMDID_CACHEIMPORTOFFER 0x0010	RDPGFX_CACHE_IMPORT_OFFER_PDU (section 2.2.2.16)
RDPGFX_CMDID_CACHEIMPORTREPLY 0x0011	RDPGFX_CACHE_IMPORT_REPLY_PDU (section 2.2.2.17)
RDPGFX_CMDID_CAPSADVERTISE 0x0012	RDPGFX_CAPS_ADVERTISE_PDU (section 2.2.2.18)
RDPGFX_CMDID_CAPSCONFIRM 0x0013	RDPGFX_CAPS_CONFIRM_PDU (section 2.2.2.19)
RDPGFX_CMDID_MAPSURFACETOWINDOW 0x0015	RDPGFX_MAP_SURFACE_TO_WINDOW_PDU (section 2.2.2.20)
RDPGFX_CMDID_QOEFRAMEACKNOWLEDGE 0x0016	RDPGFX_QOE_FRAME_ACKNOWLEDGE_PDU (section 2.2.2.21)
RDPGFX_CMDID_MAPSURFACETOSCALEDOUTPUT 0x0017	RDPGFX_MAP_SURFACE_TO_SCALED_OUTPUT_PDU (section 2.2.2.22)
RDPGFX_CMDID_MAPSURFACETOSCALEDWINDOW 0x0018	RDPGFX_MAP_SURFACE_TO_SCALED_WINDOW_PDU (section 2.2.2.23)

flags (2 bytes): A 16-bit unsigned integer that contains graphics command flags common to all PDUs. No common graphics command flags are specified; therefore, this field MUST be set to zero.

pduLength (4 bytes): A 32-bit unsigned integer that specifies the length of the graphics command PDU, in bytes. This value MUST include the length of the RDPGFX_HEADER (8 bytes).