modifying parameters

[_rich_helvey_]

Hi,
I'm trying to change a point parameter's values based on some computing I do elsewhere, but I can't get it to work.

When given PF_Cmd_USER_CHANGED_PARAM, I go into my "UpdateHook" function which looks like this:

static PF_Err UpdateHook(PF_ParamDef *params[]){
params[START_POINT]->u.td.x_value = g_growStart.x;
params[START_POINT]->u.td.y_value = g_growStart.y;
params[START_POINT]->uu.change_flags = PF_ChangeFlag_CHANGED_VALUE;
return PF_Err_NONE;
}

I know that UpdateHook gets called. I know that g_growStart.x and g_growStart.y have values, and I am supervising params[START_POINT] and the other parameters that might change g_growStart.

AE doesn't crash or give me errors, but it also doesn't change anything... I can't find a sample that shows this functionality either. Any help would be appreciated.

Thanks,
-Rich

[Bruce Bullis]

Take a look at Supervisor; we need to change a COPY of the params, not the original params.

[_rich_helvey_]

Ah, I'll give that a shot. I thought that was only when changing the UI (hiding or showing certain sliders or whatever).

-Rich