To access a method associated with a component in the COM server, the PowerBuilder client connects to the component using its programmatic identifier (ProgID) or its class identifier (CLSID).
You can use a tool such as OLEVIEW or the OLE tab in the PowerBuilder Browser to view the Program ID or CLSID and methods of registered COM objects.
To establish a connection to the COM server, you need to execute the PowerScript statements required to perform these operations:
-
Declare a variable of type OLEObject and use the Create statement to instantiate it.
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Connect to the object using its Program ID or CLSID.
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Check that the connection was established.
Example
The following script instantiates the EmpObj OLEObject object, connects to the COM object PBcom.Employee, and checks for errors:
OLEObject EmpObj
Integer li_rc
EmpObj = CREATE OLEObject
li_rc = EmpObj.ConnectToNewObject("PBcom.employee")
IF li_rc < 0 THEN
DESTROY EmpObj
MessageBox("Connecting to COM Object Failed", &
"Error: " + String(li_rc))
Return
END IF
