C / C++ / MFC

	<br />
struct<br />
{<br />
	WORD wFormatTag; // Format category<br />
	WORD wChannels; // Number of channels<br />
	DWORD dwSamplesPerSec; // Sampling rate<br />
	DWORD dwAvgBytesPerSec; // For buffer estimation<br />
	WORD wBlockAlign; // Data block size<br />
} FormatChunk;<br />
<br />
	char ch[1];<br />
	CFile waveFile;<br />
	if(waveFile.Open(wavName,CFile::modeRead|CFile::typeBinary)==FALSE)<br />
	{<br />
		TRACE("Error opening file");<br />
		return NULL;<br />
	}<br />
<br />
	//read till we get to the start of above chunk header<br />
	while(1)<br />
	{<br />
		waveFile.Read(ch,1);<br />
		TRACE("%c\n",ch[0]);<br />
		if(ch[0] == 'E')<br />
			break;<br />
	}<br />
<br />
	waveFile.Read(&FormatChunk,sizeof(FormatChunk));<br />
<br />
	DWORD temp = FormatChunk.dwAvgBytesPerSec;<br />
	//FormatChunk.dwAvgBytesPerSec holds the sampling rate <br />
	TRACE("Sampling rate is : %ld\n",temp);<br />
	TRACE("wChannels is : %0.2d\n",FormatChunk.wChannels);<br />
//	TRACE("format tag is : %s\n",FormatChunk.wFormatTag);<br />
<br />
	waveFile.Close();<br />
	return temp;

<br />
int n=0, idx=0;<br />
CString pbBuffer;<br />
char chngval;<br />
char hexval[2];<br />
char* out;<br />
out = (char*)malloc(sizeof(char) * 41);<br />
memset(out, 0x00000000, sizeof(char) * 41);<br />
<br />
while(m_cPeriodList.GetCount()!=idx)<br />
{<br />
	m_cPeriodList.GetText(idx, pbBuffer);<br />
	n=wcstol(pbBuffer, '\0', 10);<br />
	// Convert to hex<br />
	memset(hexval, 0, sizeof(hexval));<br />
	for (int i=1; i>=0; i--) {<br />
		 chngval="0123456789ABCDEF"[((n >> i*4) & 0xF)];<br />
		 memcpy(hexval+(1-i), &chngval, sizeof(char));<br />
	}<br />
	hexval[2]='\0';<br />
	idx++;<br />
	strcat(out, hexval);<br />
}<br />
<br />
// Complete format<br />
int zerocounter=(40-(idx*2))/2;<br />
for(int temp_idx=0; zerocounter!=temp_idx; temp_idx++)<br />
	strcat(out, "00");<br />
<br />
// Set comment<br />
lvi->mask = LVIF_TEXT;<br />
lvi->iSubItem = 3;<br />
lvi->iItem = 0;<br />
lvi->pszText = (LPTSTR)(LPCTSTR)out;<br />
m_list->SetItem(lvi);<br />
szTemp.Empty();<br />
<br />
free(out);<br />