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Video Test Generator User Guide 339
FORM
draw FORMat data block
Class Custom image primitive
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 (1 for non-interlaced and 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
are the X and Y coordinates for the top left corner of the block of text.
Command syntax FORM color x y
color
available colors
x
positive integer number
y
positive integer number
Other required
commands
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
FORM blue 30 200 // Display format information
// in blue beginning at X=30, Y=200
ALLU // Update hardware to current buffer contents