VarPtr
Returns the address of a variable as a LongPtr.
Syntax: VarPtr( Var )
- Var
- required The variable whose pointer is to be obtained. Any type is accepted.
The returned address is the storage location of Var itself — the same place the runtime would write to for an assignment. For a numeric or fixed-length type the value of the variable lives at that address; for a String or Variant the value at the address is the variable’s BSTR pointer or VARIANT descriptor.
Pass the result to an API function that needs a raw address, or hand it to one of the [GetMem* / PutMem](../HiddenModule/) helpers to read or write the underlying bytes. The pointer is valid only for as long as *Var is alive in its scope; locals, arguments, and elements of expanded arrays can move when their owning frame or array is reallocated.
Example
Dim n As Long
n = &H12345678
Dim Bytes(0 To 3) As Byte
vbaCopyBytes 4, VarPtr(Bytes(0)), VarPtr(n)
Debug.Print Hex(Bytes(0)) ' "78" — little-endian