_GetObjectProperty( ) API Library Routine
Returns a property value for an object.
The object to return a property for is specified with *objct, and the property to return is specified with *prop.
The value returned is placed in the *retval value structure.
You must always fill the *retval structure with 0 prior to calling _GetObjectProperty().
_GetObjectProperty( ) returns 0 if it is successful; otherwise, the negative value of the corresponding Visual FoxPro error code is returned.
For more information on how to create an API library and integrate it with Visual FoxPro, see Accessing the Visual FoxPro API.