PRB: Method Code Not Returned Using Object Reference with GETPEM

ID: Q195694

The information in this article applies to:

Microsoft Visual FoxPro for Windows, version 6.0

SYMPTOMS

The GETPEM() function can be used to return the property values and event or method program code for a given object at design-time. Although not documented as being supported at run-time, this function does return property values and event or method code at run-time.

However, when passing an object reference as the first parameter to the GETPEM() function, an empty string is returned when querying for event or method program code at run-time.

RESOLUTION

In order to retrieve the event or method code at run-time using the GETPEM() function, the first parameter must specify the class name rather than a reference to the object. If the class name is not known, the object's Class property can be passed as follows:


   GETPEM(oObject.Class, "Init")

STATUS

This behavior is by design.

MORE INFORMATION

In this context, run-time refers to a compiled Visual FoxPro executable running with VFP6R.DLL, and design-time means running in the Interactive Development Environment (IDE) using VFP6.exe.

Steps to Reproduce Behavior

Run the following code:


   oObject = NEWOBJECT("_form",HOME()+"ffc\_base.vcx")
   cMethodCode = GETPEM(oObject,"Release") && Object Ref = Empty String
   ?LEN(cMethodCode)  && Zero

Note that zero is returned. If the first parameter passed to the GETPEM() function is changed to oObject.Class, a value greater than zero is returned.

Additional query words:

Keywords : kbOOP kbVFp600
Version : WINDOWS:6.0
Platform : WINDOWS
Issue type : kbprb