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2.2.7.1.5 Pointer Capability Set (TS_POINTER_CAPABILITYSET)

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The TS_POINTER_CAPABILITYSET structure advertises pointer cache sizes and flags and is based on the capability set specified in [T128] section 8.2.11. This capability is sent by both client and server.


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capabilitySetType

lengthCapability

colorPointerFlag

colorPointerCacheSize

pointerCacheSize

capabilitySetType (2 bytes): A 16-bit, unsigned integer. The type of the capability set. This field MUST be set to CAPSTYPE_POINTER (8).

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.

colorPointerFlag (2 bytes): A 16-bit, unsigned integer. Indicates support for color pointers. Since RDP supports monochrome cursors by using Color Pointer Updates and New Pointer Updates (sections 2.2.9.1.1.4.4 and 2.2.9.1.1.4.5 respectively), the value of this field is ignored and is always assumed to be TRUE (at a minimum the Color Pointer Update MUST be supported by an RDP client).

Value

Meaning

FALSE

0x0000

Monochrome mouse cursors are supported.

TRUE

0x0001

Color mouse cursors are supported.

colorPointerCacheSize (2 bytes): A 16-bit, unsigned integer. The number of available slots in the 24 bpp color pointer cache used to store data received in the Color Pointer Update (section 2.2.9.1.1.4.4).

pointerCacheSize (2 bytes): A 16-bit, unsigned integer. The number of available slots in the pointer cache used to store pointer data of arbitrary bit depth received in the New Pointer Update (section 2.2.9.1.1.4.5).

If the value contained in this field is zero or the Pointer Capability Set sent from the client does not include this field, the server will not use the New Pointer Update.