The SpawnWaitDialog ControlEvent triggers the dialog box specified by the Argument column of the ControlEvent table, if the expression in the Condition column evaluates as FALSE. The dialog box remains up for as long as the conditional expression remains FALSE and is removed as soon as the condition evaluates TRUE.
This ControlEvent is published by the installer.
A dialog box in the Dialog table.
The SpawnWaitDialog ControlEvent can be used to wait for any background task the completion of which can be tested using a conditional expression such as the state of a property. For an example of using the SpawnWaitDialog ControlEvent, see the section Authoring a Conditional "Please wait . . ." Message Box.