<field name="compatState" type="CARD8" mask="ModMask" />
<field name="grabMods" type="CARD8" mask="ModMask" />
<field name="compatGrabMods" type="CARD8" mask="ModMask" />
+ <field name="lookupMods" type="CARD8" mask="ModMask" />
<field name="compatLookupMods" type="CARD8" mask="ModMask" />
<pad bytes="1" />
<field name="ptrBtnState" type="CARD16" mask="KeyButMask" />