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2.2.9.1.1.4.4 Color Pointer Update (TS_COLORPOINTERATTRIBUTE)

The TS_COLORPOINTERATTRIBUTE structure represents a regular T.128 24 bpp color pointer, as specified in [T128] section 8.14.3. This pointer update is used for both monochrome and color pointers in RDP.


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cacheIndex

hotSpot

...

width

height

lengthAndMask

lengthXorMask

xorMaskData (variable)

...

andMaskData (variable)

...

pad (optional)

cacheIndex (2 bytes): A 16-bit, unsigned integer. The zero-based cache entry in the pointer cache in which to store the pointer image. The number of cache entries is specified using the Pointer Capability Set (section 2.2.7.1.5).

hotSpot (4 bytes): A Point (section 2.2.9.1.1.4.1) structure containing the x-coordinates and y-coordinates of the pointer hotspot.

width (2 bytes): A 16-bit, unsigned integer. The width of the pointer in pixels. The maximum allowed pointer width is 96 pixels if the client set the LARGE_POINTER_FLAG_96x96 (0x00000001) flag in the Large Pointer Capability Set (section 2.2.7.2.7). If the LARGE_POINTER_FLAG_96x96 was not set, the maximum allowed pointer width is 32 pixels.

height (2 bytes): A 16-bit, unsigned integer. The height of the pointer in pixels. The maximum allowed pointer height is 96 pixels if the client set the LARGE_POINTER_FLAG_96x96 (0x00000001) flag in the Large Pointer Capability Set (section 2.2.7.2.7). If the LARGE_POINTER_FLAG_96x96 was not set, the maximum allowed pointer height is 32 pixels.

lengthAndMask (2 bytes): A 16-bit, unsigned integer. The size in bytes of the andMaskData field.

lengthXorMask (2 bytes): A 16-bit, unsigned integer. The size in bytes of the xorMaskData field.

xorMaskData (variable): A variable-length array of bytes. Contains the 24-bpp, bottom-up XOR mask scan-line data. The XOR mask is padded to a 2-byte boundary for each encoded scan-line. For example, if a 3x3 pixel cursor is being sent, then each scan-line will consume 10 bytes (3 pixels per scan-line multiplied by 3 bytes per pixel, rounded up to the next even number of bytes).

andMaskData (variable): A variable-length array of bytes. Contains the 1-bpp, bottom-up AND mask scan-line data. The AND mask is padded to a 2-byte boundary for each encoded scan-line. For example, if a 7x7 pixel cursor is being sent, then each scan-line will consume 2 bytes (7 pixels per scan-line multiplied by 1 bpp, rounded up to the next even number of bytes).

pad (1 byte): An optional 8-bit, unsigned integer. Padding. Values in this field MUST be ignored.