Determines whether the named member is part of an OLE object in a storage. The member can be another OLE object (a substorage) or a stream.
OLEStorage objects
olestorage.MemberExists ( membername, exists )
Argument |
Description |
|---|---|
olestorage |
The name of an object variable of type OLEStorage that you want to check |
membername |
A string whose value is the name of the member that you want to check |
exists |
A boolean variable that will store whether or not the member exists |
Integer. Returns 0 if it succeeds and one of the following negative values if an error occurs:
-1 The storage is not open
-9 Other error
If any argument’s value is null, MemberExists returns null.
This example creates a storage object and opens an OLE object in a file. It checks whether wordobj is a substorage within that object and, if so, deletes it and saves the object back to the file:
boolean lb_memexists
integer result
stg_stuff = CREATE OLEStorage
stg_stuff.Open("c:\ole2\mystuff.ole")
stg_stuff.MemberExists("wordobj", lb_memexists)
IF lb_memexists THEN
result = stg_stuff.MemberDelete("wordobj")
IF result = 0 THEN stg_stuff.Save( )
END IF
