private Object MarshalDeviceProperty(IntPtr source, Int32 length, UInt32 type) { // TODO: add other types; now covers only all types that are mentioned in devpkey.h switch (type) { case UsbDeviceWinApi.DevicePropertyTypes.DEVPROP_TYPE_UINT32: return((UInt32)Marshal.ReadInt32(source)); case UsbDeviceWinApi.DevicePropertyTypes.DEVPROP_TYPE_GUID: return(MarshalEx.ReadGuid(source, length)); case UsbDeviceWinApi.DevicePropertyTypes.DEVPROP_TYPE_FILETIME: return(MarshalEx.ReadFileTime(source)); case UsbDeviceWinApi.DevicePropertyTypes.DEVPROP_TYPE_BOOLEAN: return(Marshal.ReadByte(source) != 0); case UsbDeviceWinApi.DevicePropertyTypes.DEVPROP_TYPE_STRING: return(Marshal.PtrToStringUni(source)); case UsbDeviceWinApi.DevicePropertyTypes.DEVPROP_TYPE_SECURITY_DESCRIPTOR: return(MarshalEx.ReadSecurityDescriptor(source, length)); case UsbDeviceWinApi.DevicePropertyTypes.DEVPROP_TYPE_SECURITY_DESCRIPTOR_STRING: return(Marshal.PtrToStringUni(source)); case UsbDeviceWinApi.DevicePropertyTypes.DEVPROP_TYPE_BINARY: return(MarshalEx.ReadByteArray(source, length)); case UsbDeviceWinApi.DevicePropertyTypes.DEVPROP_TYPE_STRING_LIST: return(MarshalEx.ReadMultiSzStringList(source, length)); default: return(null); } }
// TODO: not tested public static RawSecurityDescriptor ReadSecurityDescriptor(IntPtr source, Int32 length) { Byte[] byteArray = MarshalEx.ReadByteArray(source, 0, length); return(new RawSecurityDescriptor(byteArray, 0)); }
public static Guid ReadGuid(IntPtr source, Int32 length) { Byte[] byteArray = MarshalEx.ReadByteArray(source, 0, length); return(new Guid(byteArray)); }
public static Byte[] ReadByteArray(IntPtr source, Int32 length) { return(MarshalEx.ReadByteArray(source, 0, length)); }