Specifies the state of the machine for the current user in relation to the propriety of sending a notification.
public enum UserNotificationState
None of the other states are found, notifications can be freely sent.
Introduced in Windows 8. A Windows Store app is running.
A full-screen application is running or Presentation Settings are applied. Presentation Settings allow a user to put their machine into a state fit for an uninterrupted presentation, such as a set of PowerPoint slides, with a single click.
A screen saver is displayed, the machine is locked, or a nonactive Fast User Switching session is in progress.
The user has activated Windows presentation settings to block notifications and pop-up messages.
Introduced in Windows 7. The current user is in "quiet time", which is the first hour after a new user logs into his or her account for the first time. During this time, most notifications should not be sent or shown. This lets a user become accustomed to a new computer system without those distractions. Quiet time also occurs for each user after an operating system upgrade or clean installation.
A full-screen (exclusive mode) Direct3D application is running.