i used the following code from the visa manual
#include "visa.h"
#define MAX_CNT 200
int main(void)
{
ViStatus status; /* For checking errors */
ViSession defaultRM, instr; /* Communication channels */
ViUInt32 retCount; /* Return count from string I/O */
ViChar buffer[MAX_CNT]; /* Buffer for string I/O */
/* Begin by initializing the system*/
status = viOpenDefaultRM(&defaultRM);
if (status < VI_SUCCESS) {
/* Error Initializing VISA...exiting*/
return -1;
}
/* Open communication with GPIB Device at Primary Addr 1*/
/* NOTE: For simplicity, we will not show error checking*/
status = viOpen(defaultRM, "GPIB0::1::INSTR", VI_NULL, VI_NULL,
&instr);
/* Set the timeout for message-based communication*/
status = viSetAttribute(instr, VI_ATTR_TMO_VALUE, 5000);
/* Ask the device for identification */
status = viWrite(instr, "*IDN?\n", 6, &retCount);
status = viRead(instr, buffer, MAX_CNT, &retCount);
/* Your code should process the data */
/* Close down the system */
status = viClose(instr);
status = viClose(defaultRM);
return 0;
}
I have added the header files from the include folder in the VXIPNP folder, still on compiling it in Dev c++ it gives me linker error when i execute it as a C source. When i execute it as a C++ code i get "invalid conversion from `const char*' to `ViByte*' " on line 22.
What should i do. Is there any other compiler i should use?
