Matrix Orbital GTT70A - Manual (Page 17)

13 Command Summary
2.4 Drawing
4.1 Set Background
Drawing Colour Dec
Hex
ASCII 254 86
FE 56
þ V
R G B
R G B
R G B 2.0
Set the display colour when the Clear Screen command is sent. The default colour on startup is black.
R Byte Intensity of red, 0 to 255, limited to display metrics.
G Byte Intensity of green, 0 to 255, limited to display metrics.
B Byte Intensity of blue, 0 to 255, limited to display metrics.
4.2 Get Background
Drawing Colour Dec
Hex
ASCII 254 87
FE 57
þ W
2.0
Read the background colour that is currently being used by all drawing commands.
Return Message 252 87 Length R G B
R Byte Intensity of red, 0 to 255, limited to display metrics.
G Byte Intensity of green, 0 to 255, limited to display metrics.
B Byte Intensity of blue, 0 to 255, limited to display metrics.
4.3 Clear Screen Dec
Hex
ASCII 254 88
FE 58
þ X
2.0
Clear the screen, and reset the coordinates for both continued line and font insertion commands to zero.
4.4 Scroll Screen Dec
Hex
ASCII 254 89
FE 59
þ Y
X Y Width Height MoveX MoveY
X Y Width Height MoveX MoveY
X Y Width Height MoveX MoveY 2.0
Scroll the contents of a specified portion of the screen.
X Signed Short Leftmost coordinate of the scroll window.
Y Signed Short Topmost coordinate of the scroll window.
Width Signed Short Width of the scroll window.
Height Signed Short Height of the scroll window.
MoveX Signed Short Number of pixels to scroll horizontally.
MoveY Signed Short Number of pixels to scroll vertically.