# System Parameters

'QD'= | Windows Queue Display

## Description

(WindX Only)

Controls the amount of time (in seconds) a session waits before forcing a check of the Windows message queue for keyboard/mouse activity. This parameter is only in effect when '!W' WindX keyboard synchronization is enabled and only while a task is executing code that does not issue an INPUT or OBTAIN within the delay period.

The 'QD' parameter is a client-side setting that must be set after a WindX connection has been established via:

> EXECUTE "[wdx]SET_PARAM 'QD'=nnn".

#### Note:
During the delay period, PxPlus will not respond to Ctrl - Break or process mouse events, which could be perceived that the application is being non-responsive.

(The 'QD'= system parameter was added in PxPlus v7.)

## Default

'QD'=4

## See Also

'!W' WindX Keyboard Synchronization