C / C++ / MFC

/////// some declarations
const int NUMPTS = 8000 * 10;
int sampleRate = 8000;
short int waveIn[NUMPTS];
HWAVEIN hWaveIn;
WAVEHDR WaveInHdr;
MMRESULT result = 0;

// waveInProc function....
void CALLBACK waveInProc(HWAVEIN hwi,UINT msg, DWORD dwInstance, DWORD dwArg1, DWORD dwArg2) {
	
	switch(msg) {
		case WIM_OPEN:
			MessageBox(NULL,"Device Opened Successfuly","Device Opened",NULL);
			break;
		case WIM_DATA:
			MessageBox(NULL,"Data Recieving","data",NULL);
			break;
		case WIM_CLOSE:
			MessageBox(NULL,"Device Closed Successfuly","Device Closed",NULL);
			break;
		default:
			break;
	}
}

void CwaveFileDlg::OnOpenDev() //button using which the input device is opened
{
	CFile file;
	CFileException cfe;
	TCHAR* filename = "d:\\file.wav";
	WAVEFORMATEX pFormat;//assume that values are set correctly

	if (!file.Open(filename,CFile::modeCreate|CFile::modeReadWrite,&cfe))
		MessageBox("File could't be opened","",cfe.m_cause);

	result = waveInOpen(&hWaveIn,WAVE_MAPPER,&pFormat,(DWORD_PTR) waveInProc,(DWORD_PTR) this,(DWORD)WAVE_FORMAT_DIRECT);
}

BYTE*pp=new BYTE[iSize];

VOID ABC::abc() {
   int result;
   result = someFUNC();
}