I slimmed the code down as small as possible, still having the error...
The (entire) c code is now:
#include <windows.h>
#include <MMSystem.h>
#include "laser.h"
#define SAMPLE_RATE 44100
#define NUMPTS (int)(SAMPLE_RATE * 0.015)
short int waveIn[NUMPTS]; // 'short int' is a 16-bit type; I request 16-bit samples below
HWAVEIN hWaveIn;
WAVEFORMATEX pFormat;
UINT numDevs;
WAVEINCAPS devCaps;
WAVEHDR WaveInHdr;
MMRESULT result;
int panel;
int WINAPI WinMain(HINSTANCE hInstance, // handle to current instance
HINSTANCE hPrevInstance, // handle to previous instance
LPSTR lpCmdLine, // pointer to command line
int nCmdShow) // show state of window
{
// Specify recording parameters
pFormat.wFormatTag=WAVE_FORMAT_PCM; // simple, uncompressed format
pFormat.nChannels=1; // 1=mono, 2=stereo
pFormat.nSamplesPerSec=SAMPLE_RATE; // 44100
pFormat.nAvgBytesPerSec=SAMPLE_RATE*2; // = nSamplesPerSec * n.Channels * wBitsPerSample/8
pFormat.nBlockAlign=2; // = n.Channels * wBitsPerSample/8
pFormat.wBitsPerSample=16; // 16 for high quality, 8 for telephone-grade
pFormat.cbSize=0;
waveInOpen(&hWaveIn, WAVE_MAPPER,&pFormat,
0L, 0L, WAVE_FORMAT_DIRECT);
if (InitCVIRTE (hInstance, 0, 0) == 0)
return -1;
if ((panel = LoadPanel (0, "laser.uir", PANEL)) < 0)
return -1;
DisplayPanel (panel);
RunUserInterface ();
DiscardPanel (panel);
waveInClose(hWaveIn);
return 0;
}
int CVICALLBACK timer(int panel, int control, int event, void *callbackData, int eventData1, int eventData2)
{
if (event==EVENT_TIMER_TICK)
{
WAVEHDR WaveInHdr;
// Set up and prepare header for input
WaveInHdr.lpData = (LPSTR)waveIn;
WaveInHdr.dwBufferLength = NUMPTS*2;
WaveInHdr.dwBytesRecorded=0;
WaveInHdr.dwUser = 0L;
WaveInHdr.dwFlags = 0L;
WaveInHdr.dwLoops = 0L;
waveInPrepareHeader(hWaveIn, &WaveInHdr, sizeof(WaveInHdr));
// Insert a wave input buffer
waveInAddBuffer(hWaveIn, &WaveInHdr, sizeof(WaveInHdr));
// Commence sampling input
waveInStart(hWaveIn);
// Wait until finished recording
do {} while (waveInUnprepareHeader(hWaveIn, &WaveInHdr, sizeof(WaveInHdr))==WAVERR_STILLPLAYING);
}
return(0);
}
and the include file:
/**************************************************************************/
/* LabWindows/CVI User Interface Resource (UIR) Include File */
/* Copyright (c) National Instruments 2010. All Rights Reserved. */
/* */
/* WARNING: Do not add to, delete from, or otherwise modify the contents */
/* of this include file. */
/**************************************************************************/
#include <userint.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Panels and Controls: */
#define PANEL 1
#define PANEL_TIMER 2 /* callback function: timer */
/* Menu Bars, Menus, and Menu Items: */
/* (no menu bars in the resource file) */
/* Callback Prototypes: */
int CVICALLBACK timer(int panel, int control, int event, void *callbackData, int eventData1, int eventData2);
#ifdef __cplusplus
}
#endif
I also attached the files, including the *.uir.
Maybe someone could check whether he/she is having the same problem?
