Declare Auto Function MsiGetProductInfo Lib "msi.dll" (ByVal product As String, ByVal [property] As String, <MarshalAs(UnmanagedType.VBByRefStr)> ByRef valueBuf As String, ByRef len As Long) As Int32

Private Function MsiSetInternalUI(dwUILevel As INSTALLUILEVEL, ByRef phWnd As IntPtr) As Integer

Public Shared Function MsiViewFetch(ByVal hView As Integer, <Out> ByRef hRecord As Integer) As UInt32

   <[In]> ByRef iidResult As Guid, <MarshalAs(UnmanagedType.Interface), Out> ByRef _

                           ByRef lplpMessageFilter As IMessageFilter) As Integer

Private Declare Function CreateFileMoniker Lib "ole32.dll" (ByVal lpszPathName As String, ByRef ppmk As IMoniker) As Integer

                              <Out()> ByRef ppLkbyt As IlockBytes) _

    Declare Function CreateStreamOnHGlobal Lib "ole32" (ByVal hGlobal As IntPtr, ByVal fDeleteOnRelease As Boolean, ByRef ppstm As UCOMIStream) As Long

    <[In]()> ByRef FMTID As Guid, _

    ByRef ppUnk As Object, _

    ByRef ppUnk As Object, _

    <Out()> ByRef FMTID As Guid) As Integer

    Private Shared Function CM_Get_DevNode_Status(ByRef status As ULong, ByRef probNum As ULong, ByVal devInst As IntPtr, ByVal Flag As Integer) As Integer

                          ByRef DeviceInfoData As SP_DEVINFO_DATA _

                          ByRef DeviceInfoData As SP_DEVINFO_DATA _

    ByRef ClassGuids As Guid, _

    ByRef ClassGuidRequiredSize As Integer) As Boolean

    ByRef DeviceInfoData As SP_DEVINFO_DATA) As Boolean

    ByRef DeviceInfoData As SP_DEVINFO_DATA) As Boolean

    ByRef devInfo As SP_DEVICE_INTERFACE_DATA, ByRef interfaceClassGuid As Guid, _

    ByVal memberIndex As UInt32, ByRef deviceInterfaceData As SP_DEVICE_INTERFACE_DATA) As Boolean

    ByRef InterfaceClassGuid As Guid, _

    ByRef DeviceInterfaceData As SP_DEVICE_INTERFACE_DATA) As Boolean

    ByRef ClassGuid As GUID, _

    ByRef ClassGuid As GUID, _

    ByRef hwndParent As String, _

    ByRef ClassGuid As Guid, _

                              ByRef DeviceInfoData As SP_DEVINFO_DATA, _

                              ByRef DeviceInstallParams As SP_DEVINSTALL_PARAMS _

    ByRef deviceInterfaceData As SP_DEVICE_INTERFACE_DATA, _

    ByRef deviceInterfaceDetailData As SP_DEVICE_INTERFACE_DETAIL_DATA, _

    ByRef requiredSize As Int32, _

    ByRef deviceInfoData As SP_DEVINFO_DATA) As Boolean

    ByRef DeviceInterfaceData As SP_DEVICE_INTERFACE_DATA, _

    ByRef DeviceInterfaceDetailData As SP_DEVICE_INTERFACE_DETAIL_DATA, _

    ByRef RequiredSize As UInteger, _

    ByRef DeviceInfoData As SP_DEVINFO_DATA) As Boolean '

    ByRef DeviceInfoData As SP_DEVINFO_DATA, _

    ByRef PropertyRegDataType As Integer, _

    ByRef RequiredSize As Integer) As Boolean

    ByRef ClassGuid As GUID, _

Private Function SetupDiOpenDevRegKey(DeviceInfoSet As IntPtr, ByRef DeviceInfoData As SP_DEVINFO_DATA, Scope As UInteger, HwProfile As UInteger, KeyType As UInteger, samDesired As UInteger) As IntPtr

Public Declare Auto Function SetupFindFirstLine Lib "setupapi.dll" (ByVal InfHandle As IntPtr, ByVal Section As String, ByVal Key As String, ByRef Context As INFCONTEXT) As Boolean

Public Declare Auto Function SetupFindNextLine Lib "setupapi.dll" (ByRef ContextIn As INFCONTEXT, ByRef ContextOut As INFCONTEXT) As Boolean

Public Declare Auto Function SetupFindNextMatchLine Lib "setupapi.dll" (ByRef ContextIn As INFCONTEXT, ByVal Key As String, ByRef ContextOut As INFCONTEXT) As Boolean

Public Declare Auto Function SetupGetStringField Lib "setupapi.dll" (ByRef Context As INFCONTEXT, ByVal FieldIndex As Int32, ByVal ReturnBuffer As String, ByVal ReturnBufferSize As Int32, ByRef RequiredSize As Int32) As Boolean

Public Declare Auto Function SetupOpenInfFile Lib "setupapi.dll" (ByVal FileName As String, ByVal InfClass As String, ByVal InfStyle As Int32, ByRef ErrorLine As UInteger) As IntPtr

Declare Function GdipCreateBitmapFromGdiDib Lib "GdiPlus.dll" (ByRef GdiBitmapInfo As BITMAPINFO, ByVal GdiBitmapData As Long, ByRef bitmap As Long) As Status

Declare Shared Function GdiplusStartup Lib "gdiplus.dll" (ByRef token As IntPtr, _

ByRef input As StartupInput, ByRef output As StartupOutput) As Integer

Public Shared Function GdiplusStartup(ByRef token As IntPtr, _

                       ByRef input As GdipStartupInput, _

                       ByRef output As GdipStartupOutput) _

    Public Shared Function CreateProcessWithTokenW(hToken As IntPtr, dwLogonFlags As Integer, lpApplicationName As String, lpCommandLine As String, dwCreationFlags As Integer, lpEnvironment As IntPtr, lpCurrentDirectory As IntPtr, ByRef lpStartupInfo As STARTUPINFO, ByRef lpProcessInformation As PROCESS_INFORMATION) As Boolean

This is named "struct" to be consistent with the Windows API name, but it is defined as a class since it is passed as a pointer (AKA reference) in SetWindowsHookEx and CallNextHookEx. Or it can be defined as a struct and passed with ref (ByRef in VB.NET).

    Private Shared Sub DoReaderMode(ByRef prmi As READERMODEINFO)

    Private Delegate Function ReaderScrollCallbackDelegate(ByRef prmi As READERMODEINFO, dx As Integer, dy As Integer) As Boolean

    Private Delegate Function TranslateDispatchCallbackDelegate(ByRef lpmsg As MSG) As Boolean

    Private Function TranslateDispatchCallback(ByRef lpmsg As MSG) As Boolean

    Private Function ReaderScrollCallback(ByRef prmi As READERMODEINFO, dx As Int32, dy As Int32) As Boolean

    ByRef lpServiceStatus As SERVICE_STATUS)

  Public Function StartDocPrinter(hPrinter As IntPtr, Level As Integer, ByRef pDocInfo As DOC_INFO_1W) As Long

  Public Function StartDocPrinter(hPrinter As IntPtr, Level As Integer, ByRef pDocInfo As DOC_INFO_1A) As Long

        public unsafe void* byref;

    Public unsafe void* byref

Declare Function WNetAddConnection2 Lib "mpr.dll" (ByRef netResource As _

                           ByRef lpNetResource As NETRESOURCE, _

Public Shared Function WNetEnumResource(hEnum As IntPtr, ByRef lpcCount As Integer, lpBuffer As IntPtr, ByRef lpBufferSize As UInteger) As UInteger

    Public Function WNetEnumResource(ByVal hEnum As IntPtr, ByRef lpcCount As Integer, ByVal lpBuffer As IntPtr, ByRef lpBufferSize As Integer) As Integer

    Public Function WNetOpenEnum(ByVal dwScope As RESOURCE_SCOPE, ByVal dwType As RESOURCE_TYPE, ByVal dwUsage As RESOURCE_USAGE, ByRef lpNetResource As NETRESOURCE, ByRef lphEnum As IntPtr) As Integer

    Public Function GetNetworkDrives(ByRef o As NETRESOURCE, ByRef networkDriveCollection As List(Of String)) As Boolean

    Public Function GetNetworkComputers(ByRef o As NETRESOURCE, ByRef networkComputersCollection As List(Of String)) As Boolean

    Public Function WNETOE(ByRef o As NETRESOURCE, ByRef resourceCollection As List(Of String)) As Boolean

                      ByRef length As Integer) As Integer

    Declare Function WNetGetConnection Lib "mpr.dll" Alias "WNetGetConnectionA" (ByVal localName As String, ByVal remoteName As System.Text.StringBuilder, ByRef length As Integer) As Integer

    ByVal remoteName As System.Text.StringBuilder, ByRef length As Integer) As Integer

                      ByRef length As Integer) As Integer

Declare Function WNetGetLastError Lib "mpr.dll" Alias "WNetGetLastErrorA" (ByRef lpError As Integer, ByVal lpErrorBuf As String, ByVal nErrorBufSize As Integer, ByVal lpNameBuf As String, ByVal nNameBufSize As Integer) As Integer

Public Shared Function WNetOpenEnum(dwScope As ResourceScope, dwType As ResourceType, dwUsage As ResourceUsage, lpNetResource As NetResource, ByRef lphEnum As IntPtr) As UInteger

   Private Declare Function NetApiBufferAllocate Lib "NETAPI32.DLL" (ByVal ByteCount As Integer, ByRef Buffer As Integer) As Integer

Declare Unicode Function DhcpEnumSubnetClients Lib "Dhcpsapi" (ByVal ServerIpAddress As String, ByVal SubnetAddress As Integer, ByRef ResumeHandle As Integer, ByVal PreferredMaximum As Integer, ByRef ClientInfo As IntPtr, ByRef ClientsRead As Integer, ByRef ClientsTotal As Integer) As Integer

Declare Unicode Function DhcpEnumSubnetClients Lib "dhcpsapi" (ByVal ServerIpAddress As String, ByVal SubnetAddress As Int32, ByRef ResumeHandle As IntPtr, ByVal PreferredMaximum As Integer, ByRef ClientInfo As IntPtr, ByRef ClientsRead As Integer, ByRef ClientsTotal As Integer) As Integer

Declare Unicode Function DhcpEnumSubnets Lib "Dhcpsapi" (ByVal ServerIpAddress As String, ByRef ResumeHandle As Integer, ByVal PreferredMaximum As Integer, ByRef EnumInfo As IntPtr, ByRef ElementsRead As Integer, ByRef ElementsTotal As Integer) As Integer

        ByRef SearchInfo As DHCP_SEARCH_INFO, _

        ByRef ClientInfo As IntPtr) As UInt32

    ByRef MajorVersion As Integer, _

    ByRef MinorVersion As Integer) As Integer

   userName As StringBuilder, ByRef userNameSize As Integer) As Integer

  ByVal userName As System.Text.StringBuilder, ByRef userNameSize As Integer) As Integer

Private Shared Function InitializeSecurityContext(ByRef phCredential As SECURITY_HANDLE, _

    ByRef phNewContext As SECURITY_HANDLE, _

    ByRef pOutput As SecBufferDesc, _

    ByRef pfContextAttr As UInteger, _

    ByRef ptsExpiry As SECURITY_INTEGER) As Integer

                ByRef BufferSize As UInteger) As UInteger

    Declare Function PowerGetActiveScheme Lib "powrprof.dll" (ByVal UserRootPowerKey As IntPtr, ByRef ActivePolicyGuid As IntPtr) As Integer

    "PowerReadFriendlyName" (RootPowerKey As IntPtr, ByRef SchemeGuid As Guid, _

                Buffer As IntPtr, ByRef BufferSize As UInteger) As UInteger

<DllImport("powrprof.dll", SetLastError:=True)> Private Shared Function ReadGlobalPwrPolicy(ByRef pGlobalPowerPolicy As GLOBAL_POWER_POLICY) As Boolean

Declare Function ReadGlobalPwrPolicy Lib "powrprof" (ByRef pGlobalPowerPolicy As GLOBAL_POWER_POLICY) As Boolean

<DllImport("powrprof.dll", SetLastError:=True)> Private Shared Function WriteGlobalPwrPolicy(ByRef pGlobalPowerPolicy As GLOBAL_POWER_POLICY) As Boolean

Declare Function WriteGlobalPwrPolicy Lib "powrprof" (ByRef pGlobalPowerPolicy As GLOBAL_POWER_POLICY) As Boolean

                      ByRef session As Integer) As Integer

   ByVal flFlags As UInteger, ByVal ulReserved As UInteger, ByRef lppMessage As IntPtr) As UInteger

                               ByRef ppIUnk As IFilter) As Integer

Declare Function UuidCreate Lib "rpcrt4.dll" (ByRef id As UUID) As Integer

Declare Function UuidCreateSequential Lib "rpcrt4.dll" (ByRef id As Guid) As Integer

Declare Function UuidCreateSequential Lib "rpcrt4.dll" (ByRef id As Guid) As Integer