QT and VISA lib?

[gerardpuducul]

Hi all,

I try to control some test equipment with a gpib card. For doing that i try to use visa protocol but i don't success to compil anything. It seems that i don't success to link visa32.lib. It seems to not recognized the .lib extension :

C:\Program Files\IVI Foundation\VISA\WinNT\lib\bc\visa32.lib:-1: error: file not recognized: File format not recognized

C:\Program Files\IVI Foundation\VISA\WinNT\lib\bc\visa32.lib:-1: error: file not recognized: File format not recognized

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Here is my "simple" code :

#include <QtGui>
#include <iostream>
#include <windows.h>
 
#include "dial_GPIB.h"
 
 
#include "C:\Program Files\IVI Foundation\VISA\WinNT\include\visa.h"
 
 
void dialogue_GPIB::send_GPIB()
{
 
  ViSession defaultRM, vi;
  char buf [256] = {0};
 
 
  /* Open session to GPIB device at address 22 */
 
  viOpenDefaultRM (&defaultRM);
 
  viOpen (defaultRM, "GPIB0::22::INSTR", VI_NULL,VI_NULL, &vi);
 
  /* Initialize device */
  viPrintf (vi, "*RST\n");
 
  /* Send an *IDN? string to the device */
  viPrintf (vi, "*IDN?\n");
 
  /* Read results */
  viScanf (vi, "%t", &buf);
 
  /* Print results */
  printf ("Instrument identification string: %s\n", buf);
 
  /* Close session */
  viClose (vi);
  viClose (defaultRM);
#endif
}

#include <QtGui>
#include <iostream>
#include <windows.h>

#include "dial_GPIB.h"


#include "C:\Program Files\IVI Foundation\VISA\WinNT\include\visa.h"


void dialogue_GPIB::send_GPIB()
{

  ViSession defaultRM, vi;
  char buf [256] = {0};


  /* Open session to GPIB device at address 22 */

  viOpenDefaultRM (&defaultRM);

  viOpen (defaultRM, "GPIB0::22::INSTR", VI_NULL,VI_NULL, &vi);

  /* Initialize device */
  viPrintf (vi, "*RST\n");

  /* Send an *IDN? string to the device */
  viPrintf (vi, "*IDN?\n");

  /* Read results */
  viScanf (vi, "%t", &buf);

  /* Print results */
  printf ("Instrument identification string: %s\n", buf);

  /* Close session */
  viClose (vi);
  viClose (defaultRM);
#endif
}

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and here my .pro file

######################################################################
# Automatically generated by qmake (2.01a) jeu. 14. févr. 11:17:30 2008
######################################################################
 
TEMPLATE = app
TARGET = 
 
# Input
HEADERS += dial_GPIB.h
FORMS += dial_GPIB.ui
SOURCES += dial_GPIB.cpp main.cpp
 
win32: LIBS += "C:\Program Files\IVI Foundation\VISA\WinNT\lib\bc/visa32.lib"
 
INCLUDEPATH += "C:\Program Files\IVI Foundation\VISA\WinNT\lib\bc"
DEPENDPATH += "C:\Program Files\IVI Foundation\VISA\WinNT\lib\bc"
 
win32: PRE_TARGETDEPS += "C:\Program Files\IVI Foundation\VISA\WinNT\lib\bc/visa32.lib"

######################################################################
# Automatically generated by qmake (2.01a) jeu. 14. févr. 11:17:30 2008
######################################################################

TEMPLATE = app
TARGET = 

# Input
HEADERS += dial_GPIB.h
FORMS += dial_GPIB.ui
SOURCES += dial_GPIB.cpp main.cpp

win32: LIBS += "C:\Program Files\IVI Foundation\VISA\WinNT\lib\bc/visa32.lib"

INCLUDEPATH += "C:\Program Files\IVI Foundation\VISA\WinNT\lib\bc"
DEPENDPATH += "C:\Program Files\IVI Foundation\VISA\WinNT\lib\bc"

win32: PRE_TARGETDEPS += "C:\Program Files\IVI Foundation\VISA\WinNT\lib\bc/visa32.lib"

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anyone can help me?

thanks

[jhoyland]

Did you ever get a solution to this? - I'm having the same problem with visa32.lib under Qt.

[ChrisW67]

This is not a Qt problem, but there is insufficient information to answer this question definitively anyway. The OP is probably using the MingW toolchain with the Microsoft format library file.