LSA_ALLOCATE_SHARED_MEMORY callback function (ntsecpkg.h)
The AllocateSharedMemory function allocates a block of shared memory from a section of memory previously reserved by a call to the CreateSharedMemory function.
Syntax
LSA_ALLOCATE_SHARED_MEMORY LsaAllocateSharedMemory;
PVOID LsaAllocateSharedMemory(
[in] PVOID SharedMem,
[in] ULONG Size
)
{...}
Parameters
[in] SharedMem
Pointer to a section of reserved shared memory.
[in] Size
Specifies the amount of shared memory to allocate, in bytes.
Return value
If the function succeeds, the return value is a pointer to the allocated memory.
If the function fails, the return value is NULL.
Remarks
Reserve a section of shared memory using the CreateSharedMemory function. Free a block of memory allocated by AllocateSharedMemory using the FreeSharedMemory function.
A pointer to the AllocateSharedMemory function is available in the LSA_SECPKG_FUNCTION_TABLE structure received by the SpInitialize function.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | ntsecpkg.h |