/// <summary>
/// Constructor for WLAN_INTERFACE_INFO_LIST.
/// Constructor is needed because the InterfaceInfo member varies based on how many adapters are in the system.
/// </summary>
/// <param name="pList">the unmanaged pointer containing the list.</param>
public WLAN_INTERFACE_INFO_LIST(IntPtr pList)
{
// The first 4 bytes are the number of WLAN_INTERFACE_INFO structures.
dwNumberOfItems = Marshal.ReadInt32(pList, 0);
// The next 4 bytes are the index of the current item in the unmanaged API.
dwIndex = Marshal.ReadInt32(pList, 4);
// Construct the array of WLAN_INTERFACE_INFO structures.
InterfaceInfo = new WLAN_INTERFACE_INFO[dwNumberOfItems];
for (int i = 0; i < dwNumberOfItems; i++)
{
// The offset of the array of structures is 8 bytes past the beginning. Then, take the index and multiply it by the number of bytes in the structure.
// the length of the WLAN_INTERFACE_INFO structure is 532 bytes - this was determined by doing a sizeof(WLAN_INTERFACE_INFO) in an unmanaged C++ app.
IntPtr pItemList = new IntPtr(pList.ToInt32() + (i * 532) + 8);
// Construct the WLAN_INTERFACE_INFO structure, marshal the unmanaged structure into it, then copy it to the array of structures.
WLAN_INTERFACE_INFO wii = new WLAN_INTERFACE_INFO();
wii = (WLAN_INTERFACE_INFO)Marshal.PtrToStructure(pItemList, typeof(WLAN_INTERFACE_INFO));
InterfaceInfo[i] = wii;
}
}
/// <summary>
/// Constructor for WLAN_INTERFACE_INFO_LIST.
/// Constructor is needed because the InterfaceInfo member varies based on how many adapters are in the system.
/// </summary>
/// <param name="pList">the unmanaged pointer containing the list.</param>
public WLAN_INTERFACE_INFO_LIST(IntPtr pList)
{
// The first 4 bytes are the number of WLAN_INTERFACE_INFO structures.
dwNumberOfItems = Marshal.ReadInt32(pList, 0);
// The next 4 bytes are the index of the current item in the unmanaged API.
dwIndex = Marshal.ReadInt32(pList, 4);
// Construct the array of WLAN_INTERFACE_INFO structures.
InterfaceInfo = new WLAN_INTERFACE_INFO[dwNumberOfItems];
for (int i = 0; i < dwNumberOfItems; i++)
{
// The offset of the array of structures is 8 bytes past the beginning. Then, take the index and multiply it by the number of bytes in the structure.
// the length of the WLAN_INTERFACE_INFO structure is 532 bytes - this was determined by doing a sizeof(WLAN_INTERFACE_INFO) in an unmanaged C++ app.
IntPtr pItemList = new IntPtr(pList.ToInt32() + (i * 532) + 8);
// Construct the WLAN_INTERFACE_INFO structure, marshal the unmanaged structure into it, then copy it to the array of structures.
WLAN_INTERFACE_INFO wii = new WLAN_INTERFACE_INFO();
wii = (WLAN_INTERFACE_INFO)Marshal.PtrToStructure(pItemList, typeof(WLAN_INTERFACE_INFO));
InterfaceInfo[i] = wii;
}
}
