2.2.9.1.1.3.1 Slow-Path Graphics Update (TS_GRAPHICS_UPDATE)

The TS_GRAPHICS_UPDATE structure is used to describe the type and encapsulate the data for a slow-path graphics update sent from server to client.<36> All slow-path graphic updates conform to this basic structure (section 2.2.9.1.1.3.1.1).

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
shareDataHeader (18 bytes)
...
...
...																updateType
updateData (variable)
...

shareDataHeader (18 bytes): Share Data Header (section 2.2.8.1.1.1.2) containing information about the packet. The type subfield of the pduType field of the Share Control Header (section 2.2.8.1.1.1.1) MUST be set to PDUTYPE_DATAPDU (7). The pduType2 field of the Share Data Header MUST be set to PDUTYPE2_UPDATE (2).

updateType (2 bytes): A 16-bit, unsigned integer. Type of the graphics update.

Value	Meaning
UPDATETYPE_ORDERS 0x0000	Indicates an Orders Update ([MS-RDPEGDI] section 2.2.2.2).
UPDATETYPE_BITMAP 0x0001	Indicates a Bitmap Graphics Update (section 2.2.9.1.1.3.1.2).
UPDATETYPE_PALETTE 0x0002	Indicates a Palette Update (section 2.2.9.1.1.3.1.1).
UPDATETYPE_SYNCHRONIZE 0x0003	Indicates a Synchronize Update (section 2.2.9.1.1.3.1.3).

updateData (variable): Variable-length data specific to the graphics update.