gistfile1.c

HANDLE hClient = NULL;
PWLAN_INTERFACE_INFO_LIST pIntfList = NULL;
DWORD negotiatedVersion = 0;
DWORD res = 0;
int i = 0;

// get handle
res = WlanOpenHandle(WLAN_API_VERSION, NULL, &negotiatedVersion, &hClient);
if (res != ERROR_SUCCESS) {
  if (hClient != NULL) WlanCloseHandle(hClient, NULL);
  return -1; // error
}

// get interfaces
res = WlanEnumInterfaces(hClient, NULL, &pIntfList);
if (res != ERROR_SUCCESS) {
  if (pIntfList != NULL) WlanFreeMemory(pIntfList);
  if (hClient != NULL) WlanCloseHandle(hClient, NULL);
  return -2; // error
}

// iterate over interfaces and disconnect
for(i = 0; i < pIntfList->dwNumberOfItems; i++) {
  GUID& guidIntf = &pIntfList->InterfaceInfo[i]->InterfaceGuid;

  // Disconnect
  WlanDisonnect(hClient, guidIntf, NULL);
}


if (pIntfList != NULL) WlanFreeMemory(pIntfList);
if (hClient != NULL) WlanCloseHandle(hClient, NULL);