NSLeftMouseDown A left mouse-down event. Declarationstatic const NSEventType NSLeftMouseDown; See AlsoDeprecatedNSLeftMouseUpNSRightMouseDownNSRightMouseUpNSOtherMouseDownNSOtherMouseUpNSMouseMovedNSLeftMouseDraggedNSRightMouseDraggedNSOtherMouseDraggedNSMouseEnteredNSMouseExitedNSCursorUpdateNSKeyDownNSKeyUpNSFlagsChanged