Sample Program Listing

/**************************************************************************

FILE : GxCalExampleC.cpp

PURPOSE : WIN32 sample program for GX2470 board using the GxCal driver.

CREATED : Feb. 2008

COMMENTS :

To compile the WIN32 example:

1. Microsoft VC++

Load GxCalExampleC.dsp, .vcproj or .mak, depends on

the VC++ version from the Project\File/Open... menu

Select Project/Rebuild all from the menu

2. Borland C++ Builder

Load GxCalExampleC.bpr from the Project/Open

Project... menu

Select Project/Build all from the menu

/**************************************************************************/

#include "windows.h"

#include "GxCal.h"

#include "stdio.h"

// Borland C++ Builder compat. block

#if defined(__BORLANDC__)

#pragma hdrstop

#include <condefs.h>

USELIB("GxCalBc.lib");

USERC("GxCalExampleC.rc");

//---------------------------------------------------------

#endif // defined(__BORLANDC__)

//*********************************************************

// DisplayMsg

//*********************************************************

void DisplayMsg(PSTR lpszMsg)

{

MessageBeep(0);

MessageBox(0, lpszMsg,"GxCal", MB_OK);

return;

}

//*********************************************************

// DisplayUsage

//*********************************************************

void DisplayUsage(void)

{

DisplayMsg(

"\r\nThis example shows how to use the GX1034:\r\n\r\n"

"Usage:\r\n"

"GxCalExampleC <slot_number> <function> <value> \r\n"

"Where : \r\n"

"<slot_number> PXI slot number as shown by the PXI explorer\r\n"

"<function> Set Function :\r\n"

"\tGXCAL_FUNCTION_NOT_CONNECTED=Disconnect all Disconnect all functions\r\n"

"\tGXCAL_FUNCTION_4WIRE=Connect 4-wire\r\n"

"\tGXCAL_FUNCTION_2WIRE=Connect 2-wire\r\n"

"\tGXCAL_FUNCTION_POSITIVE_VDC=Connect positive voltage\r\n"

"\tGXCAL_FUNCTION_NEGATIVE_VDC=Connect negative voltage\r\n"

"<value> Set Function value\r\n\r\n"

"NOTE: To change command line under Windows right click on the example shortcut\r\n"

"from the start menu and type the new command line\r\n"

);

exit(1);

}

//*********************************************************

// CheckStatus

//*********************************************************

void CheckStatus(SHORT nStatus)

{

CHAR sz[256];

if (!nStatus) return;

GxCalGetErrorString(nStatus, sz, sizeof sz, &nStatus);

DisplayMsg(sz);

DisplayMsg("Aborting the program...");

exit(nStatus);

}

//*********************************************************

// MAIN

// This main function receives five parameters

// Assigned board slot number (e.g. 1) always need to be passed.

// <function> Set Function :

// GXCAL_FUNCTION_NOT_CONNECTED=Disconnect all Disconnect all functions

// GXCAL_FUNCTION_4WIRE=Connect 4-wire

// GXCAL_FUNCTION_2WIRE=Connect 2-wire

// GXCAL_FUNCTION_POSITIVE_VDC=Connect positive voltage

// GXCAL_FUNCTION_NEGATIVE_VDC=Connect negative voltage

// <value> Set Function value

//*********************************************************

int main(int argc, char **argv)

{

short nSlotNum; // Board slot number

short nFunction; // Board function

short nHandle; // Board handle

short nStatus; // Returned status

double dValue;

// Check number of arguments received

if (argc<3) DisplayUsage();

// Parse command line parameters

nSlotNum=(SHORT)strtol(*(++argv), NULL, 0);

nFunction =(SHORT)strtol(*(++argv), NULL, 0);

dValue =strtod(*(++argv), NULL);

if (nSlotNum<0)

DisplayUsage();

GxCalInitialize(nSlotNum, &nHandle, &nStatus);

CheckStatus(nStatus);

switch(nFunction)

{

case GXCAL_FUNCTION_NOT_CONNECTED:

case GXCAL_FUNCTION_4WIRE:

case GXCAL_FUNCTION_2WIRE:

case GXCAL_FUNCTION_POSITIVE_VDC:

case GXCAL_FUNCTION_NEGATIVE_VDC:

GxCalSetFunction(nHandle, nFunction, dValue, 0, &nStatus);

CheckStatus(nStatus);

break;

default:

DisplayUsage();

}

return 0;

}

//*********************************************************

// End Of File

//*********************************************************