[Mouse action] Left-click [Pen gesture description] Tap the screen and hold until the mouse icon appears and disappears. Users are likely to do this when they accident-tally press and hold and want to revert to just tap. [Event messages] ISG_TAP sent when pen is lifted. [Mouse messages] WM_LBUTTONDOWN and WM_LBUTTONUP sent when pen is lifted. Left-click for a long time. No mouse equivalent exists. This is a fallback for when a user performs press-and-hold for a long time. The event reverts to being a tap. [Pen gesture] 
Hold-through
T a p
D o u b l e - t a p
P r e s s a n d h o l d
H o l d - t h r o u g h
D r a g
P r e s s a n d h o l d f o l l o w e d b y a d r a g
P e n h o v e r
I n - a i r s h a k e