wrhwww

1.添加消息
消息映射
BEGIN_MESSAGE_MAP(CAFT_1394Dlg, CDialog)
//{{AFX_MSG_MAP(CAFT_1394Dlg)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
...
ON_WM_DEVICECHANGE()
//}}AFX_MSG_MAP
聲明消息響應函數:
afx_msg BOOL OnDeviceChange(UINT nEventType, DWORD dwData);
定義函數內容:
BOOL XXXXXXX::OnDeviceChange(UINT nEventType,DWORD dwData)
{
DEV_BROADCAST_DEVICEINTERFACE* dbd = (DEV_BROADCAST_DEVICEINTERFACE*) dwData;
//這里進行信息匹配,比如guid等
//針對各個事件進行處理.
switch (nEventType)
{
case DBT_DEVICEREMOVECOMPLETE:
...
break;
case DBT_DEVICEARRIVAL:
...
break;
...
...
...
default:
break;
}
return TRUE;
}
2.注冊設備
if (Handle == NULL)
return FALSE;
DEV_BROADCAST_DEVICEINTERFACE DevInt;
memset(&DevInt,0,sizeof(DEV_BROADCAST_DEVICEINTERFACE));
DevInt.dbcc_size = sizeof(DEV_BROADCAST_DEVICEINTERFACE);
DevInt.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
DevInt.dbcc_classguid = GetCurrentUSBGUID();//m_usb->GetDriverGUID();
if (!RegisterDeviceNotification(m_hWnd, &DevInt,DEVICE_NOTIFY_WINDOW_HANDLE) )
return FALSE;
只有注冊了該設備,OnDeviceChange才能獲得詳細的信息,否則收到的參數都是0007.
手動添加吧
我也沒找到