ShowPlay Reference Manual, Chapter 4 (StimulusEvents): backcolor
Backcolor -- Change the default back color
The BACKCOLOR stimulus event lets you change the screen background color parameter during your Showplay real-time program. The syntax for the BACKCOLOR event is:
backcolor stim_id stim_flg start_time colorRGBvalue
COLORRGBVALUE is a 24-bit color value, specifying red, green, blue values in 8-bits each. These color values must be entered as decimal integer values in the stimulus table. A table of some common color values is:
RGBdecimal RGBhex Color
0 0h Black
16777215 0ffffffh White
255 0ffh Blue
65280 0ff00h Green
16711680 0ff0000h Red
RGB values can be entered as hexidecimal numbers on CIGAL command lines, which can be useful for converting 24 bit colors to decimal values.
Note: The BACKCOLOR event does not change the display – it just changes that back_color parameter. The display will change to that color the next time the screen is erased.
See Also:
Paradigm parameter file,
Stimulus table
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