NAME¶

RtlSizeHeap (NTDLL.@)

SYNOPSIS¶

SIZE_T RtlSizeHeap
(
HANDLE heap,
ULONG flags,
const void* ptr
)

DESCRIPTION¶

Get the actual size of a memory block allocated from a Heap.

PARAMS¶

heap [In] Heap that block was allocated from. flags [In] HEAP_ flags from "winnt.h". ptr [In] Block to get the size of.

RETURNS¶

Success: The size of the block. Failure: -1, heap or pointer are invalid.

NOTES¶

The size may be bigger than what was passed to RtlAllocateHeap(3w).

IMPLEMENTATION¶

Declared in "winternl.h". Implemented in "dlls/ntdll/heap.c". Debug channel "heap".