Problems to extend TimelineMarker class

Coding Python Support
#1

Hi,

I need to extend the TimelimeMarker class with some properties, but my try returns strange results and will not work.

I’ve created a marker and renamed it to ‘MyMarker’ in the timeline. Then I added a new property to the TimelineMarker class.

import bpy
bpy.types.TimelineMarker.pause_on_reached = bpy.props.IntProperty()

if I test the type of the new property it returns tuple instead of <type int>

>>> type(bpy.context.scene.timeline_markers[‘MyMarker’].pause_on_reached)
<class ‘tuple’>

If I try to set the value of the new property I got an error:

>>> bpy.context.scene.timeline_markers[‘F_10’].pause_on_reached = 1
Traceback (most recent call last):
File “<blender_console>”, line 1, in <module>
AttributeError: ‘TimelineMarker’ object attribute ‘pause_on_reached’ is read-only

If I try the same on the Object Type or Scene Type for instance it works like intented and I can set values properly.

Don’t understand, where’s the difference.

Any pointers are welcome.

thanks. offtools.

#2

Probably just doesn’t work on that, only on classes derived from ID does this work.

Yes, a little Yoda slipped in there…

At least I think it’s ID related, sound’s about right.

#3

Thanks for the pointer. Will consult the manuals about that, have a clue now.

I’ve started to implement a TimelineMarkerEvent Collection, which stores the properties about timeline behaviour.