CoTaskMemAlloc
Allocates a block of task memory in the same way that
IMalloc::Alloc does.
LPVOID CoTaskMemAlloc(
ULONG cb
| //Size in bytes of memory block to be allocated
|
);
|
|
Parameter
cb
Specifies the size (in bytes) of the memory block to be allocated.
Return Values
Allocated memory block
Indicates memory block allocated successfully.
NULL
Indicates insufficient memory available.
Comments
The
CoTaskMemAlloc function uses the default allocator to allocate a memory block in the same
way that
IMalloc::Alloc does. It is not necessary to call the
CoGetMalloc function before calling
CoTaskMemAlloc.
The initial contents of the returned memory block are undefined
there is no guarantee that the block has been initialized. The allocated block
may be larger than
cb bytes because of the space required for alignment and for maintenance
information.
If
cb is zero,
CoTaskMemAlloc allocates a zero-length item and returns a valid pointer to that item. If
there is insufficient memory available,
CoTaskMemAlloc returns NULL.
Note Applications should always check the return value from this method, even
when requesting small amounts of memory, because there is no guarantee the memory
will be allocated.
See Also
IMalloc::Alloc,
CoGetMalloc,
CoTaskMemFree,
CoTaskMemRealloc
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