[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] | Reference for unit 'Objects' (#rtl)

# CallPointerConstructor

Call a constructor with a pointer argument.

## Declaration

Source position: objects.pp line 589

`function CallPointerConstructor(`
`Ctor: CodePointer;`
`Obj: pointer;`
`VMT: pointer;`
`Param1: pointer`
`):pointer;`

## Description

CallVoidConstructor calls the constructor of an object. Ctor is the address of the constructor, Obj is a pointer to the instance. If it is Nil, then a new instance is allocated. VMT is a pointer to the object's VMT. Param1 is passed to the constructor. The return value is a pointer to the instance.

Note that this can only be used on constructors that require a pointer as the sole argument. It can also be used to call a constructor with a single argument by reference.

## Errors

If the constructor expects other arguments than a pointer, the stack may be corrupted.

## See also

CallVoidConstructor |  | Call a constructor with no arguments
CallPointerMethod |  | Call a method with a single pointer argument
CallVoidLocal |  | Call a local nested procedure.
CallPointerLocal |  | Call a local nested function with a pointer argument
CallVoidMethodLocal |  | Call a local procedure of a method
CallPointerMethodLocal |  | Call a local procedure of a method with a pointer argument