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#includeLRESULT CMFCApplication1Dlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) { // TODO: 在此添加专用代码和/或调用基类 PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam; PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb; TCHAR szMsg[80]; char driveName; switch (message) { case WM_DEVICECHANGE: switch (wParam) { case DBT_DEVICEARRIVAL: ::MessageBox(0, _T("检测到USB设备"), _T("WM_DEVICECHANGE"), MB_OK); break; case DBT_DEVICEREMOVECOMPLETE: ::MessageBox(0, _T("USB设备拔出"), TEXT("WM_DEVICECHANGE"), MB_OK); break; default: ; } break; default: ; } return CDialogEx::WindowProc(message, wParam, lParam); }