CourseLab CourseLab 3.5. User's Guide Previous topic Next topic

Slide events timeline

In the process of displaying of the Slide events occur in a particular sequence as shown in the table below (in order from top to bottom). It is important to mention that the Slide, all its Frames and all its Objects are created in memory at first stage (but not displayed), display stage begins when all Objects are ready.

Sample sequence is very simple: the Slide contains single Frame and the Frame contains single Object. When the Slide contains more Objects, corresponding events will repeat.

Slide Frame Object Description
on Before Creation     After start of creation of the Slide. Slide is not available yet.
  on Before Creation   After start of creation of the Frame. Frame is not available yet.
    on Before Creation After start of creation of the Object. Object is not available yet.
    on After Creation Before end of creation of the code of selected Object. Object is available, but not visible.
    ... When the Frame contains more than one Object, these events will repeat.
  on After Creation   Before the end of creation of the Frame. Frame is available, but not ready to display. Frame is available, but not ready to display.
    ... When the Slide contains more than one Frame, these events will repeat.
on After Creation     Before the end of creation of the Slide. Slide is available, but not ready to display.
on Display Start     Before the start of the Slide display. Slide, its Frames and its Objects are not displayed yet.
  on Display Start   Before the start of the Frame display. Frame and its Objects are not displayed yet.
    on Display Right after the Object becomes visible.
    ... When the Frame contains more than one Object, these events will repeat.
  on Display Completed   After the last object of the Frame is displayed (according to regular display sequence).
    ... When the Slide contains more than one Frame, these events will repeat.
on Display Completed     After the last object of the last Frame of the Slide is displayed (according to regular display sequence).
       
on Hide Start     Before start of the Slide hiding.
  on Hide Start   Before start of the Frame hiding.
    on Hide Start After the Object becomes invisible or right before the start of the transition effect of the Object (if defined in Exit section).
    on Before Destroy Before start of destroying the Object. Object still exists.
    on After Destroy Before the end of destroying the Object. Object is already unavailable.
    ... When the Frame contains more than one Object, these events will repeat.