Bound Visio application

When you use VisioPS there cmdlets it typically needs an active instance of Visio to be running - this is called the bound Visio application.

Bind to a new Visio application

New-VisioApplication

Note that New-VisioApplication does NOT return an application object.

Getting the currently bound Visio application

$visapp = Get-VisioApplication

Broken binding

Suppose you have a bound instance and then you go to the that instance in the UI and close the application. VisioPS still thinks it bound to that instance - it still "has a pointer" to it. But of course, that pointer is now invalid and any commands that try to interact with the (now non-existent) Visio application will fail.

Verifying the bound Visio application

Use Test-VisioApplication to verify that a Visio application instance is bound ans that VisioPS can successfully communicate with it.

if (Test-VisioApplication)
{
    # the bound application is valid
}
else
{
    # the bound application is not valid
}