IMalloc::GetSize

Returns the size (in bytes) of a memory block previously allocated with IMalloc::Alloc or IMalloc::Realloc.

ULONG GetSize(
  void *pv  //Pointer to the memory block for which the size is 
            //requested
);
 

Parameter

pv

[in] Pointer to the memory block for which the size is requested.

Return Value

The size of the allocated memory block in bytes or, if pv is a NULL pointer, -1.

Remarks

To get the size in bytes of a memory block, the block must have been previously allocated with IMalloc::Alloc or IMalloc::Realloc. The size returned is the actual size of the allocation, which may be greater than the size requested when the allocation was made.

QuickInfo

  Windows NT: Use version 3.1 or later.
  Windows: Use Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in objidl.h.

See Also

IMalloc::Alloc, IMalloc::Realloc