Set a new Class module using a pointer to another one
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Thread: Set a new Class module using a pointer to another one

  1. #1
    Join Date
    Dec 2012
    Posts
    38

    Set a new Class module using a pointer to another one

    Goodmorning

    My purpose is to reach a result like this:
    Code:
    Dim clsA As New Class1
    Dim clsB As New Class1
    
    Set clsB = clsA
    but using pointers to object and the CopyMemory API call.

    The reasons why I've to pass trough this way are several and hard to explain.

    I tried this code:
    Code:
    Dim ptrA As Long, ptrB As Long
    
    ptrA = ObjPtr(clsA)
    ptrB = ObjPtr(clsB)
    CopyMemory ptrB, ptrA, 4
    but nothing happens, because (although clsA is initialized) clsB always seems to be empty (any property value of clsA is set to clsB).

    I also tried to call the ObjPtr() function inside the Class1 module like this:
    Code:
    ptr = ObjPtr(Me)
    but neither this time I gave results.

    Can you help me?

  2. #2
    Join Date
    Jan 2006
    Location
    Chicago, IL
    Posts
    14,982

    Re: Set a new Class module using a pointer to another one

    You need to place the first set of calls into a normal MODULE, and set the references to PUBLIC. Then, they will be shared throughout the application.
    David

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