# System Attributes and Multithreading

The following table indicates, for each system attribute, whether the User Interface Library maintains separate values for each thread, or one global value for the entire process.

System Attribute | Values Maintained
ATTR_RESOLUTION_ADJUSTMENT | Separate value for each thread.
ATTR_TASKBAR_BUTTON_VISIBLE | Separate value for each thread.
ATTR_TASKBAR_BUTTON_TEXT | Separate value for each thread.
ATTR_REPORT_LOAD_FAILURE | One global value.
ATTR_ALLOW_MISSING_CALLBACKS | One global value.
ATTR_ALLOW_UNSAFE_TIMER_EVENTS | One global value.
ATTR_SUPPRESS_EVENT_PROCESSING | Separate value for each thread.