2.2.7.1.3 Order Capability Set (TS_ORDER_CAPABILITYSET)

The TS_ORDER_CAPABILITYSET structure advertises support for primary drawing order-related capabilities and is based on the capability set specified in [T128] section 8.2.5 (for more information about primary drawing orders, see [MS-RDPEGDI] section 2.2.2.2.1.1). This capability is sent by both client and server.

capabilitySetType (2 bytes): A 16-bit, unsigned integer. The type of the capability set. This field MUST be set to CAPSTYPE_ORDER (3).

lengthCapability (2 bytes): A 16-bit, unsigned integer. The length in bytes of the capability data, including the size of the capabilitySetType and lengthCapability fields.

terminalDescriptor (16 bytes): A 16-element array of 8-bit, unsigned integers. Terminal descriptor. This field is ignored and SHOULD be set to all zeros.

pad4octetsA (4 bytes): A 32-bit, unsigned integer. Padding. Values in this field MUST be ignored.

desktopSaveXGranularity (2 bytes): A 16-bit, unsigned integer. X granularity used in conjunction with the SaveBitmap Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.12). This value is ignored and assumed to be 1.

desktopSaveYGranularity (2 bytes): A 16-bit, unsigned integer. Y granularity used in conjunction with the SaveBitmap Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.12). This value is ignored and assumed to be 20.

pad2octetsA (2 bytes): A 16-bit, unsigned integer. Padding. Values in this field MUST be ignored.

maximumOrderLevel (2 bytes): A 16-bit, unsigned integer. Maximum order level. This value is ignored and SHOULD be set to ORD_LEVEL_1_ORDERS (1).

numberFonts (2 bytes): A 16-bit, unsigned integer. Number of fonts. This value is ignored and SHOULD be set to zero.

orderFlags (2 bytes): A 16-bit, unsigned integer. A 16-bit unsigned integer. Support for drawing order options.

Flag	Meaning
NEGOTIATEORDERSUPPORT 0x0002	Indicates support for specifying supported drawing orders in the orderSupport field. This flag MUST be set.
ZEROBOUNDSDELTASSUPPORT 0x0008	Indicates support for the TS_ZERO_BOUNDS_DELTAS (0x20) flag ([MS-RDPEGDI] section 2.2.2.2.1.1.2). The client MUST set this flag.
COLORINDEXSUPPORT 0x0020	Indicates support for sending color indices (not RGB values) in orders.
SOLIDPATTERNBRUSHONLY 0x0040	Indicates that this party can receive only solid and pattern brushes.
ORDERFLAGS_EXTRA_FLAGS 0x0080	Indicates that the orderSupportExFlags field contains valid data.

orderSupport (32 bytes): An array of 32 bytes indicating support for various primary drawing orders. The indices of this array are the negotiation indices for the primary orders specified in [MS-RDPEGDI] section 2.2.2.2.1.1.2.

Negotiation index	Primary drawing order or orders
TS_NEG_DSTBLT_INDEX 0x00	DstBlt Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.1).
TS_NEG_PATBLT_INDEX 0x01	PatBlt Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.3) and OpaqueRect Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.5).
TS_NEG_SCRBLT_INDEX 0x02	ScrBlt Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.7).<26>
TS_NEG_MEMBLT_INDEX 0x03	MemBlt Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.9).<27>
TS_NEG_MEM3BLT_INDEX 0x04	Mem3Blt Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.10).
UnusedIndex1 0x05	The contents of the byte at this index MUST be ignored.
UnusedIndex2 0x06	The contents of the byte at this index MUST be ignored.
TS_NEG_DRAWNINEGRID_INDEX 0x07	DrawNineGrid Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.21).
TS_NEG_LINETO_INDEX 0x08	LineTo Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.11).
TS_NEG_MULTI_DRAWNINEGRID_INDEX 0x09	MultiDrawNineGrid Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.22).
UnusedIndex3 0x0A	The contents of the byte at this index MUST be ignored.
TS_NEG_SAVEBITMAP_INDEX 0x0B	SaveBitmap Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.12).
UnusedIndex4 0x0C	The contents of the byte at this index MUST be ignored.
UnusedIndex5 0x0D	The contents of the byte at this index MUST be ignored.
UnusedIndex6 0x0E	The contents of the byte at this index MUST be ignored.
TS_NEG_MULTIDSTBLT_INDEX 0x0F	MultiDstBlt Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.2).
TS_NEG_MULTIPATBLT_INDEX 0x10	MultiPatBlt Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.4).
TS_NEG_MULTISCRBLT_INDEX 0x11	MultiScrBlt Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.8).
TS_NEG_MULTIOPAQUERECT_INDEX 0x12	MultiOpaqueRect Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.6).
TS_NEG_FAST_INDEX_INDEX 0x13	FastIndex Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.14).
TS_NEG_POLYGON_SC_INDEX 0x14	PolygonSC Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.16) and PolygonCB Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.17).
TS_NEG_POLYGON_CB_INDEX 0x15	PolygonCB Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.17) and PolygonSC Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.16).
TS_NEG_POLYLINE_INDEX 0x16	Polyline Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.18).
UnusedIndex7 0x17	The contents of the byte at this index MUST be ignored.
TS_NEG_FAST_GLYPH_INDEX 0x18	FastGlyph Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.15).
TS_NEG_ELLIPSE_SC_INDEX 0x19	EllipseSC Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.19) and EllipseCB Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.20).
TS_NEG_ELLIPSE_CB_INDEX 0x1A	EllipseCB Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.20) and EllipseSC Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.19).
TS_NEG_INDEX_INDEX 0x1B	GlyphIndex Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.13).
UnusedIndex8 0x1C	The contents of the byte at this index MUST be ignored.
UnusedIndex9 0x1D	The contents of the byte at this index MUST be ignored.
UnusedIndex10 0x1E	The contents of the byte at this index MUST be ignored.
UnusedIndex11 0x1F	The contents of the byte at this index MUST be ignored.

If an order is supported, the byte at the given index MUST contain the value 0x01. Any order not supported by the client causes the server to spend more time and bandwidth using workarounds, such as other primary orders or simply sending screen bitmap data in a Bitmap Update (sections 2.2.9.1.1.3.1.2 and 2.2.9.1.2.1.2). If no primary drawing orders are supported, this array MUST be initialized to all zeros.

textFlags (2 bytes): A 16-bit, unsigned integer. Values in this field MUST be ignored.

orderSupportExFlags (2 bytes): A 16-bit, unsigned integer. Extended order support flags.

Flag	Meaning
ORDERFLAGS_EX_CACHE_BITMAP_REV3_SUPPORT 0x0002	The Cache Bitmap (Revision 3) Secondary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.2.8) is supported.
ORDERFLAGS_EX_ALTSEC_FRAME_MARKER_SUPPORT 0x0004	The Frame Marker Alternate Secondary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.3.7) is supported.

pad4octetsB (4 bytes): A 32-bit, unsigned integer. Padding. Values in this field MUST be ignored.

desktopSaveSize (4 bytes): A 32-bit, unsigned integer. The maximum usable size of bitmap space for bitmap packing in the SaveBitmap Primary Drawing Order ([MS-RDPEGDI] section 2.2.2.2.1.1.2.12). This field is ignored by the client and assumed to be 230400 bytes (480 * 480).

pad2octetsC (2 bytes): A 16-bit, unsigned integer. Padding. Values in this field MUST be ignored.

pad2octetsD (2 bytes): A 16-bit, unsigned integer. Padding. Values in this field MUST be ignored.

textANSICodePage (2 bytes): A 16-bit, unsigned integer. ANSI code page descriptor being used by the client (for a list of code pages, see [MSDN-CP]). This field is ignored by the client and SHOULD be set to zero by the server.

pad2octetsE (2 bytes): A 16-bit, unsigned integer. Padding. Values in this field MUST be ignored.