Summary:	Event-specific reply
Type:	Signed long
Details:	Used in various events to indicate a response to the system.
Init:	mods = 0+: Growable and NoPopUp settable. else: Ignored.
BldPopUp:	Ignored.
SelPopUp:	Redraw and UpdateTerms settable.
PropType:	mods = 0: UpdateTerms and RedoPropTypes settable. else: Ignored.
Grow:	Redraw and UpdateTerms settable.
GetColor:	Value specifies the color to return to the eyedropper tool.
By Value:	0x1: Growable, Redraw 0x2: NoPopUp, UpdateTerms 0x4: ??? 0x8: ??? 0x10: RedoPropTypes