C / C++ / MFC

DEFINE_GUID(GUID_CLASS_USB_DEVICE,
     0xA5DCBF10, 0x6530, 0x11D2, 0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED);

hDevInfo = SetupDiGetClassDevs((LPGUID)&GUID_CLASS_USB_DEVICE,
     0, 0, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);

 if (hDevInfo == INVALID_HANDLE_VALUE)
     return false;

 // Enumerate through all devices in Set.
 DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
 for (i = 0 ; SetupDiEnumDeviceInfo(hDevInfo, i, &DeviceInfoData) ; i++)
 {
     DWORD DataT;
     LPTSTR buffer = new char[1024];//NULL;
     DWORD buffersize = 1024;//0;

 SetupDiEnumDeviceInterfaces (hDevInfo, 0, &DeviceInfoData.ClassGuid, i, &DInfoData);

     while (!SetupDiGetDeviceRegistryProperty(hDevInfo, &DeviceInfoData,
             SPDRP_FRIENDLYNAME, &DataT, (PBYTE)buffer, buffersize, &buffersize))
 ...
 }

bool CMusicBox::CreateWnd(CWnd* Parent)<br />
{<br />
	parent = Parent;<br />
	if(parent)<br />
	{<br />
<br />
		RECT client;<br />
		parent->GetClientRect(&client);<br />
		int result = this->Create(WS_CHILD|WS_VSCROLL|WS_BORDER|WS_VISIBLE|LVS_SHOWSELALWAYS|LVS_REPORT|LVS_ALIGNLEFT,client,parent,1234);<br />
                //Extended CListCtrl style<br />
		this->SetExtendedStyle(0x00004000|0x00000100|0x00000020|0x00000010);<br />
		<br />
		this->SetBkColor(RGB(237,242,249));<br />
}<br />

void CMusicBox::UpdateList(void)<br />
{<br />
        // Clean Up<br />
	this->DeleteAllItems();<br />
	ASSERT(this->GetItemCount() == 0);<br />
	int max = this->play.playList.GetCount();<br />
<br />
        //Number of items to be added<br />
	this->SetItemCount(max);<br />
<br />
	int i = 0;<br />
<br />
        //Update loop<br />
	for(i = 0;i<max;i++)<br />
	{<br />
		CFile myFile;<br />
<br />
		CString title;// sample title<br />
		CString path;<br />
		unsigned long siz = 0;<br />
<br />
                //File length<br />
		if(myFile.Open(this->play.GetSong(i),CFile::modeRead|CFile::shareDenyNone))<br />
		{<br />
			title = myFile.GetFileTitle();<br />
			siz = myFile.GetLength();<br />
			myFile.Close();<br />
		}<br />
		else {<br />
			title.Format("Access Denied");<br />
		}<br />
		HMS dure = {0,0,0};<br />
<br />
		path = CString(this->play.GetSong(i));<br />
<br />
                //Dummy MCIWnd Instance to retrieve sample length in seconds<br />
		HWND tester = MCIWndCreate(NULL,AfxGetInstanceHandle(),WS_BORDER|MCIWNDF_NOERRORDLG,path.GetString());<br />
		if(tester)<br />
		{<br />
			long len = MCIWndGetLength(tester);<br />
			dure = GetHMSTime(len);<br />
			MCIWndDestroy(tester);<br />
		}<br />
<br />
                //Print the attributes in char buffers<br />
		char *taille = new char[50];<br />
		char *duree = new char[50];<br />
		char *chemin = new char[MAX_PATH];<br />
		char *titre = new char[MAX_PATH];<br />
<br />
		sprintf(taille,"%.2f",siz/(1024.0*1024));<br />
		if(dure.h == 0) <br />
			sprintf(duree,"%d : %02d", dure.m, dure.s);<br />
		else sprintf(duree,"%d : %02d : %02d",dure.h, dure.m, dure.s);<br />
		strcpy(chemin, path.GetString() );<br />
<br />
		CPath filePath(path);<br />
<br />
		sprintf(titre,"%s",filePath.GetTitle());<br />
<br />
                //Adding it to the CListCtrl<br />
		LVITEM lvi;<br />
<br />
		ZeroMemory(&lvi,sizeof(LVITEM));<br />
<br />
		lvi.mask = LVIF_TEXT;<br />
<br />
		//lvi.iItem = i;<br />
		//lvi.iSubItem = 1;<br />
		//lvi.pszText = titre;<br />
		//this->InsertItem(&lvi);<br />
		this->InsertItem(i,"item");<br />
		<br />
		// Sub items<br />
		this->SetItem(i,0,LVIF_TEXT,titre,NULL,NULL,NULL,NULL);<br />
		this->SetItem(i,1,LVIF_TEXT,duree,NULL,NULL,NULL,NULL);<br />
		this->SetItem(i,2,LVIF_TEXT,chemin,NULL,NULL,NULL,NULL);<br />
		this->SetItem(i,3,LVIF_TEXT,taille,NULL,NULL,NULL,NULL);<br />
			<br />
<br />
	}<br />
}<br />