Get mouse position during Custom UI Draw event?

Question

I am building a Custom UI for one of my plugin effect.
I want to get the mouse position during the Custom UI Draw event (PF_Event_DRAW), but cannot manage to get it.
From what I understand, it seems we can only get the mouse position during the events PF_Event_DRAG, PF_Event_DO_CLICK, and PF_Event_ADJUST_CURSOR.
I tried to use PFAppSuite4::PF_GetMouse() too, but this resulted in the error message "After Effects error: internal verification failure, sorry! {PF_GetMouse can only be called during valid events.}".
Therefore I want to store the mouse position during PF_Event_ADJUST_CURSOR, and use it later during PF_Event_DRAW.
Where can I store those values in a "clean" way (ensuring there will not be conflicts if two instances of the same effect are running, etc)?
Or is there an easier method to get the mouse position during a Custom UI Draw event?

Answer 1

//SequenceDataVars is the name of your data structure
//this is how you create the sequence data
out_data->sequence_data = PF_NEW_HANDLE(sizeof(SequenceDataVars));
SequenceDataVars *seqData =
(SequenceDataVars*)PF_LOCK_HANDLE(out_data->sequence_data);
//and now you can store stuff in it.
seqData->var1 = 7;
//after it's created, on other calls, you just do a simple cast
SequenceDataVars *seqData = *(SequenceDataVars **)out_data->sequence_data;
seqData->var1 = 100;
//this is how you delete it. (if you don't delete it, it will be saved with
the project, and loaded on the next session. (if you want)
PF_DISPOSE_HANDLE(out_data->sequence_data);
there's more to know, so look up SequenceSetup, SequenceSetdown, ect in the
sample project.