_get_heap_handle
Visual Studio 2012
Returns the handle of the heap used by the C run-time system.
Important
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This API cannot be used in applications that execute in the Windows Runtime except in Debug builds. For more information, see CRT functions not supported with /ZW. |
intptr_t _get_heap_handle( void );
Use this function if you want to call HeapSetInformation and enable the Low Fragmentation Heap on the CRT heap.
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Routine |
Required header |
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_get_heap_handle |
<malloc.h> |
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;
}
