Initializing OLE

Before your Fortran application can use Automation services, it must initialize the OLE/COM environment. With f90VB this is done with a simple call to function OleInitialize:

iRet = OleInitialize()

Function OleInitialize does not have arguments. The function returns S_OK if it was successful, or an error code if it wasn’t. The complete syntax of the function is explained in the f90VB Reference Manual [37].