Returns the handle of the heap used by the C run-time system.
intptr_t _get_heap_handle( void );
Returns the handle to the Win32 heap used by the C run-time system.
Use this function if you want to call HeapSetInformation and enable the Low Fragmentation Heap on the CRT heap.
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Routine
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Required header
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Compatibility
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| _get_heap_handle | <malloc.h> |
Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 |
For more compatibility information, see Compatibility in the Introduction.
// crt_get_heap_handle.cpp
// compile with: /MT
#include <windows.h>
#include <malloc.h>
#include <stdio.h>
int main(void)
{
intptr_t hCrtHeap = _get_heap_handle();
ULONG ulEnableLFH = 2;
if (HeapSetInformation((PVOID)hCrtHeap,
HeapCompatibilityInformation,
&ulEnableLFH, sizeof(ulEnableLFH)))
puts("Enabling Low Fragmentation Heap succeeded");
else
puts("Enabling Low Fragmentation Heap failed");
return 0;
}
Reference
Memory Allocation