Anritsu Site Master S331D Bedienungsanleitung PDF herunterladen (Seite 120)

OPEN_EXISTING,

0, // no overlapped I/O

NULL); // null template

/* Set up the COM Ports Input and Output Buffer

Syntax -

BOOL SetupComm(

HANDLE hFile, // handle to communications device

DWORD dwInQueue, // size of input buffer

DWORD dwOutQueue // size of output buffer

);

PortReady = SetupComm(ComHandle, 5000, 5000);

/* Open the existing COM Settings

Syntax -

BOOL GetCommState(

HANDLE hFile, // handle to communications device

LPDCB lpDCB // pointer to device-control block

// structure

);

PortReady = GetCommState(ComHandle, &CommSettings);

/*Check to see if it was successful*/

if(!PortReady)

{

CloseHandle(ComHandle);

fclose(fp);

exit(0);

}

/* This is USed to Update the CommSettings Structure Variables*/

// Setting the Baud Rate

switch (ComBaud)

{

case ‘1’:

CommSettings.BaudRate = CBR_9600; // rate - 9600

break;

case ‘2’:

CommSettings.BaudRate = CBR_19200; // rate - 19200

break;

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Anritsu Site Master S331D Bedienungsanleitung Seite 120