Function xnOSOpenSharedMemoryEx

Source/OpenNI/Win32/Win32SharedMemory.cpp:159–208

}

XN_C_API XnStatus XN_C_DECL xnOSOpenSharedMemoryEx(const XnChar* strName, XnUInt32 nAccessFlags, XnBool bAllowOtherUsers, XN_SHARED_MEMORY_HANDLE* phSharedMem)
{
	XnStatus nRetVal = XN_STATUS_OK;

	XN_VALIDATE_INPUT_PTR(strName);
	XN_VALIDATE_OUTPUT_PTR(phSharedMem);

	DWORD flags;
	nRetVal = AccessFlagsToWin32ViewFlags(nAccessFlags, &flags);
	XN_IS_STATUS_OK(nRetVal);

	XnChar strWinName[XN_FILE_MAX_PATH];
	nRetVal = XnWin32CreateKernelObjectName(strWinName, MAX_PATH, strName, bAllowOtherUsers);
	if (nRetVal != XN_STATUS_OK)
	{
		return XN_STATUS_OS_FAILED_TO_OPEN_SHARED_MEMORY;
	}

	// allocate handle
	XnOSSharedMemory* pHandle;
	XN_VALIDATE_CALLOC(pHandle, XnOSSharedMemory, 1);

	// create file mapping
	pHandle->hMapFile = OpenFileMapping(
		flags,					 // read/write access
		FALSE,                   // do not inherit the name
		strWinName);             // name of mapping object

	if (pHandle->hMapFile == NULL) 
	{
		XN_LOG_ERROR_RETURN(XN_STATUS_OS_FAILED_TO_OPEN_SHARED_MEMORY, XN_MASK_OS, "Could not open file mapping object (%d).", GetLastError());
	}

	// map it to the process
	pHandle->pAddress = MapViewOfFile(
		pHandle->hMapFile,  // handle to map object
		flags,				// read/write permission
		0,                   
		0,                   
		0);           

	if (pHandle->pAddress == NULL)
	{
		XN_LOG_ERROR_RETURN(XN_STATUS_OS_FAILED_TO_OPEN_SHARED_MEMORY, XN_MASK_OS, "Could not map view of file (%d).", GetLastError());
	}

	*phSharedMem = pHandle;

	return (XN_STATUS_OK);
}

XN_C_API XnStatus xnOSCloseSharedMemory(XN_SHARED_MEMORY_HANDLE hSharedMem)
{