Operator Varptr (Variable Pointer)

Declare Operator VarPtr ( ByRef lhs As T ) As T Ptr

result = VarPtr ( lhs )

lhs
T

Returns the address of a variable or object.

This operator returns the address of its operand.

When the operand is of type String, the address of the internal string descriptor is returned. Use Operator Strptr (String Pointer) to retrieve the address of the string data.

The operand cannot be an array, but may be an array element. For example, "VarPtr(myarray(0))" returns the address of "myarray(0)".

Dim a As Integer, addr As Integer
a = 10

'' place the address of a in addr
addr = CInt( VarPtr(a) )

'' change all 4 bytes (size of INTEGER) of a
Poke Integer, addr, -1000 
Print a

'' place the address of a in addr (same as above)
addr = CInt( @a )

'' print the least or most significant byte, depending on the CPU endianess
Print Peek( addr ) 

• None
  
  

• Pointers
  
• Peek
  
• Poke