NIN_KEYSELECT top-level constant
int
const NIN_KEYSELECT
If a user selects a notify icon with the keyboard and activates it with the SPACEBAR or ENTER key, the version 5.0 Shell sends the associated application an NIN_KEYSELECT notification. Earlier versions send WM_RBUTTONDOWN and WM_RBUTTONUP messages.
Implementation
const NIN_KEYSELECT = NIN_SELECT | NINF_KEY;