[sc-users] Integer modifier keys

[LightRate <lightrate@xxxxxxxxx>]

Does anyone recognize this code at the bottom of Integer.sc ?

// support for modifiers keys
isCaps { ^this.bitAnd(65536) == 65536}
isShift { ^this.bitAnd(131072) == 131072 }
isCtrl { ^this.bitAnd(262144) == 262144 }
isAlt { ^this.bitAnd(524288) == 524288 }
isCmd { ^this.bitAnd(1048576) == 1048576 }
isNumPad { ^this.bitAnd(2097152) == 2097152 }
isHelp { ^this.bitAnd(4194304) == 4194304 }
isFun { ^this.bitAnd(8388608) == 8388608 }


How would someone use these numbers? Do they somehow allow us to write code
that is functionally consistent across all platforms? Without using
something like:

Platform.case
{
	\windows
}{
	// do Windows command
}
{
	\osx
}{
	// do OSX equivalent of Windows command
}

Thanks in advance, I'm just looking for the most basic idea about what these
numbers mean and how to use them.





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