IDebugPortSupplier2::CanAddPort
Applies to: 
Visual Studio 
Visual Studio for Mac
Note
This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here
Verifies that a port supplier can add new ports.
Syntax
HRESULT CanAddPort(
void
);
int CanAddPort();
Return Value
If the port can be added, returns S_OK; otherwise, returns S_FALSE to indicate no ports can be added to this port supplier.
Remarks
Call this method before calling the AddPort method since the latter method creates the port as well as adding it, which could be a time-consuming operation.