Nullability of reference types in return type of 'ContextMenu? InternalNotifyIconManager.ContextMenu.get' doesn't match implicitly implemented member 'ContextMenu INotifyIcon.ContextMenu.get' (possibly because of nullability attributes).

Possible null reference return.

The variable 'e' is declared but never used

Possible null reference return.

Possible null reference return.

Nullability of reference types in type of parameter 'sender' of 'void NotifyIconService.OnParentWindowClosing(object sender, CancelEventArgs e)' doesn't match the target delegate 'CancelEventHandler' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'sender' of 'void NotifyIconService.OnParentWindowClosing(object sender, CancelEventArgs e)' doesn't match the target delegate 'CancelEventHandler' (possibly because of nullability attributes).

Non-nullable field 'szTip' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field 'szInfo' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field 'szInfoTitle' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Nullability of type of parameter 'parameter' doesn't match overridden member (possibly because of nullability attributes).

Possible null reference return.

Possible null reference return.

Possible null reference return.

Possible null reference return.

Possible null reference argument for parameter 'value' in 'object IconSourceElementConverter.ConvertToIconElement(object value)'.

Nullability of reference types in type of parameter 'sender' of 'void TitleBar.OnParentWindowStateChanged(object sender, EventArgs e)' doesn't match the target delegate 'EventHandler' (possibly because of nullability attributes).

The variable '_' is declared but never used

The variable 'e' is declared but never used