I have an external event that call GetZoomCorner() every second and send that information to my application. However, when Revit enters transaction mode(e.g., as shown in the picture where I am drawing a grid, Revit enters transaction mode), the external event stops working because the Revit main thread is busy. Is there a way to fetch information even when Revit is busy?
use the idling event to put you operation when revit is not busy in thread .
this is a page to introduce and set a sample code to use it
Replacing an Idling Event Handler by an External Event
LanHui Xu
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There is no way, if Revit is busy you need to wait the command to finish.
Both Idling and External Event does not trigger when Revit is busy running a command.
I wonder why you need to fetch Revit each second.
