CoTaskMemRealloc

void CoTaskMemRealloc(pv, cb)

Semantically identical to retrieving the current task allocator with CoGetMalloc, invoking IMalloc::Realloc on that pointer with the same parameters, then releasing the IMalloc pointer.

Argument	Type	Description
pv	void *	Pointer to the block to reallocate. May be NULL.
cb	ULONG	The new size in bytes to allocate. May be zero.
return value	void *	The reallocated memory block, or NULL.