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► KB ► To/From Guides ► VB Classic ► Language Details

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Pointers (Cross Ref > Language Details)

By Mike Prestwood

VB Classic versus C++/CLI: A side by side comparison between VB Classic and C++/CLI.

Data Structures

Data structures allow you to store and work with data. Common data structures include arrays, associative arrays, etc.

Pointers

[Other Languages]

General Info: Pointers / References

A pointer is a variable type that allows you to refer indirectly to another object. Instead of holding data, a pointer holds the address to data -- the address of another variable or object. You can change the address value a pointer points to thus changing the variable or object the pointer is pointing to.

A reference is a type of pointer that cannot change and it must always point to a valid storage (no nulls).

VB Classic: Not Supported

VB6 does not officially offer developer defined pointers. However, VB5 and VB6 does have unsupported and undocumented VarPtr, StrPtr, and ObjPtr types but you probably should avoid them.

Ref: http://vb.mvps.org/tips/varptr.asp

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