Teledyne LeCroy WaveExpert 100H Operators Manual - Manual (Page 201)

Wave Expert
WE-OM-E Rev A
199
// Map a view of this file for writing.
short *m_lpMMFile = (short *)MapViewOfFile (m_hMMFile, FILE_MAP_ALL_ACCESS, 0, 0,
0);
if(m_lpMMFile == 0)
{
printf("Unable to map view of file\n");
return 0;
}
// create/open events used for synchronization
// if the client app. was run before the scope then these events will be created, if the scope was
run first then these events
// will just be opened
HANDLE m_hDataAvailable = CreateEvent(NULL, FALSE, FALSE /* initial state */,
szMutexDataAvailableName);
HANDLE m_hProcessingComplete = CreateEvent(NULL, FALSE, FALSE /* initial state */,
szMutexProcessingCompleteName);
if(m_hDataAvailable == 0 || m_hProcessingComplete == 0)
{
printf("Unable to open events\n");
return 0;
}
// main loop
while(1)
{
int i = 0;
printf("Waiting for new data...\n");
// wait an infinite amount of time for data to be available
DWORD waitSuccess = WaitForSingleObject(m_hDataAvailable, INFINITE);
// print the first few bytes of the input waveform
CDescHeader *descHeader = (CDescHeader *) &m_lpMMFile[0];
short *m_lpWaveform = &m_lpMMFile[descHeader->headerSize / sizeof(short)];