|Syntax||SET_GREEN #channel, operation|
|Location||Windows (DIY Toolkit - Vol W)|
This command allows you to change the colours used within a specified window channel very quickly. In order to use this, you really need a good understanding of the way in which the QL display works - see the QL Display Appendix for some details. The effect that this command has on the specified window depends upon the value of operation:
|0||Clear all Green bits (remove any Green from the screen).|
|1||Set all Green bits.|
|-1||If the Red bit for a pixel is set, Set the Green bit, otherwise clear it.|
This command will only work on screen resolutions of 512x256 pixels.
This command should not really be used in MODE 8.