IMalloc

The OLE implementation of IMalloc allocates, frees, and manages memory.

The OLE libraries and object handlers call the methods of the IMalloc implementation to manage memory. Those implementing object handlers should call CoGetMalloc to get a pointer to the IMalloc implementation to handle task memory management needs.

The IMalloc methods Alloc, Free, and Realloc are similar to the C library functions malloc, free, and realloc. For debugging, refer to the functions CoRegisterMallocSpy and CoRevokeMallocSpy.

Methods in Vtable Order

IUnknown Methods	Description
QueryInterface	Returns pointers to supported interfaces.
AddRef	Increments the reference count.
Release	Decrements the reference count.

IMalloc Methods	Description
Alloc	Allocates a block of memory.
Free	Frees a previously allocated block of memory.
Realloc	Changes the size of a previously allocated block of memory.
GetSize	Returns the size in bytes of a previously allocated block of memory
DidAlloc	Determines if this instance of IMalloc was used to allocate the specified block of memory.
HeapMinimize	Minimizes the heap by releasing unused memory to the operating system.

See Also

CoGetMalloc, CoRegisterMallocSpy, CoRevokeMallocSpy

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