Quantum Data 801GC - Manual (Page 253)

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FORM draw FORMat data block
Classification: Custom image primitive
Command Syntax: FORM <color> <x> <y>
Limits: <color> = available colors
<x> = positive integer number
<y> = positive integer number
Query Syntax: None
Description: Displays basic information about the format driving the display.
The first line shows the number of horizontal active pixels and
vertical active lines. The last number on the line is the number
of fields per frame (one (1) for non-interlaced and two (2) for
interlaced). The second and third lines show the horizontal and
vertical rates respectively. Text is on a black rectangular
background with a single pixel border.
FORM uses three (3) parameters. The first is the color of the
text and border. The next two (2) are the X and Y coordinates
for the top left-hand corner of the block of text.
Other Required Cmds: The FMTU command instructs the generator to use the new
setting. The ALLU command updates hardware to the new setting
and redraws the test image.
Example: F O R M b l u e 3 0 2 0 0 / / D i s p l a y f o r m a t
/ / i n f o r m a t i o n i n b l u e b e g i n n i n g a t
/ / X = 3 0 , Y = 2 0 0
A L L U / / U p d a t e h a r d w a r e t o c u r r e n t
/ / b u f f e r c o n t e n t s