=> R0 = Font handle (if applicable)
R1 = pointer to string
R2 = flags
R3 = x
R4 = y
R5 = pointer to block (if applicable)
R6 = pointer to transformation matrix (if applicable)
R7 = Length (if applicable)
This SWI paints a string to the screen using the currently selected font, or a specific font if flags indicate so. Any VDU 'origin' previously specified is ignored and absolute co-ordinates are assumed.
Note: Underline and rubout do not work unless transformed x-axis is parallel (not anti-parallel) to output x-axis. (Anti-parallel being parallel, but in the opposite direction to the original).
See PRM 3, page 429.
Font_Paint block
Offset Contents
0 additional x offset for spaces
4 additional y offset for spaces
8 additional x offset for each letter
12 additional y offset for each letter
16 x coordinate for bottom left of rubout box (inclusive)
20 y coordinate for bottom left of rubout box (inclusive)
24 x coordinate for top right of rubout box (exclusive)
28 y coordinate for top right of rubout box (exclusive)
These values are in millipoints (bit 4 of R2 must be clear)
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