UserInterface.workspaceDeactivated Event

# Import fusion360utils folder, which includes event_utils.py.
from ...lib import fusion360utils as futil

# Global variable used to maintain a reference to all event handlers.
local_handlers = []

# "userInterface_var" is a variable referencing a UserInterface object.
# "userInterface_workspaceDeactivated" is the event handler function.
futil.add_handler(userInterface_var.workspaceDeactivated, userInterface_workspaceDeactivated, local_handlers=local_handlers)

# Event handler for the workspaceDeactivated event.
def userInterface_workspaceDeactivated(args: adsk.core.WorkspaceEventArgs):
    # Code to react to the event.
    app.log('In userInterface_workspaceDeactivated event handler.')

# Global variable used to maintain a reference to all event handlers.
handlers = []

# "userInterface_var" is a variable referencing a UserInterface object.
# "MyWorkspaceDeactivatedHandler" is the name of the class that handles the event.
onWorkspaceDeactivated = MyWorkspaceDeactivatedHandler()
userInterface_var.workspaceDeactivated.add(onWorkspaceDeactivated)
handlers.append(onWorkspaceDeactivated)

# Event handler for the workspaceDeactivated event.
class MyWorkspaceDeactivatedHandler(adsk.core.WorkspaceEventHandler):
    def __init__(self):
        super().__init__()
    def notify(self, args: adsk.core.WorkspaceEventArgs):
        # Code to react to the event.
        app.log('In MyWorkspaceDeactivatedHandler event handler.')

#include <Core/UserInterface/UserInterface.h>
#include <Core/UserInterface/WorkspaceEvent.h>
#include <Core/UserInterface/WorkspaceEventHandler.h>
#include <Core/UserInterface/WorkspaceEventArgs.h>

// Event handler for the workspaceDeactivated event.
class MyWorkspaceDeactivatedEventHandler : public adsk::core::WorkspaceEventHandler
{
public:
    void notify(const Ptr<WorkspaceEventArgs>& eventArgs) override
    {
        // Code to react to the event.
        ui->messageBox("In MyWorkspaceDeactivatedEventHandler event handler.");
    }
} _workspaceDeactivated;

// "userInterface_var" is a variable referencing a UserInterface object.
// Connect the handler function to the event.
Ptr<WorkspaceEvent> workspaceDeactivatedEvent = userInterface_var->workspaceDeactivated();
if (!workspaceDeactivatedEvent)
    return;

bool isOk = workspaceDeactivatedEvent->add(&_workspaceDeactivated);
if (!isOk)
    return;