public static extern bool UpdateLayeredWindow()

in Configurator/Base/Classes/Win32.cs [6135:6318]
133 lines of code
1 McCabe index (conditional complexity)

    public static extern bool UpdateLayeredWindow(IntPtr hwnd, IntPtr hdcDst, ref POINT pptDst,
      ref SIZE psize, IntPtr hdcSrc, ref POINT pprSrc, Int32 crKey, ref BLENDFUNCTION blendFunction, Int32 dwFlags);

    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool SetLayeredWindowAttributes(IntPtr hwnd, Int32 crKey, byte bAlpha, Int32 dwFlags);

    [DllImport("gdi32.dll", EntryPoint = "GdiAlphaBlend")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool AlphaBlend(IntPtr hdcDest, int nXOriginDest, int nYOriginDest,
        int nWidthDest, int nHeightDest,
        IntPtr hdcSrc, int nXOriginSrc, int nYOriginSrc, int nWidthSrc, int nHeightSrc,
        BLENDFUNCTION blendFunction);

    [DllImport("gdi32.dll", ExactSpelling = true)]
    public static extern IntPtr SelectObject(IntPtr hDC, IntPtr hObject);

    [DllImport("gdi32.dll", ExactSpelling = true, SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool DeleteObject(IntPtr hObject);

    [DllImport("user32.dll", SetLastError = true)]
    public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);

    [DllImport("user32.dll", SetLastError = true)]
    public static extern int GetWindowLong(IntPtr hWnd, int nIndex);

    [DllImport("user32.dll", SetLastError = true)]
    public static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    public static extern uint RegisterWindowMessage(string lpString);

    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool ReleaseCapture();

    [DllImport("kernel32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool AttachConsole(UInt32 dwProcessId);

    [DllImport("kernel32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool FreeConsole();

    [DllImport("kernel32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool AllocConsole();

    [DllImport("kernel32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool GetFileInformationByHandle(IntPtr hFile,
      out BY_HANDLE_FILE_INFORMATION lpFileInformation);

    [DllImport("kernel32.dll")]
    public static extern IntPtr GetStdHandle(UInt32 nStdHandle);

    [DllImport("kernel32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool SetStdHandle(UInt32 nStdHandle, IntPtr hHandle);

    [DllImport("kernel32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool DuplicateHandle(IntPtr hSourceProcessHandle, IntPtr hSourceHandle,
      IntPtr hTargetProcessHandle, out IntPtr lpTargetHandle, UInt32 dwDesiredAccess,
      Boolean bInheritHandle, UInt32 dwOptions);

    [DllImport("kernel32.dll", SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool CloseHandle(IntPtr hHandle);

    [DllImport("kernel32.dll", SetLastError = true, CallingConvention = CallingConvention.Winapi)]
    public static extern bool IsWow64Process([In] IntPtr hProcess, [Out] out bool lsSystemInfo);

    [DllImport("dwmapi.dll", PreserveSig = false)]
    public static extern void DwmEnableBlurBehindWindow(IntPtr hWnd, DWM_BLURBEHIND pBlurBehind);

    [DllImport("dwmapi.dll", PreserveSig = false)]
    public static extern void DwmExtendFrameIntoClientArea(IntPtr hWnd, MARGINS pMargins);

    [DllImport("dwmapi.dll", PreserveSig = false)]
    public static extern bool DwmIsCompositionEnabled();

    [DllImport("dwmapi.dll", PreserveSig = false)]
    public static extern void DwmEnableComposition(bool bEnable);

    [DllImport("dwmapi.dll", PreserveSig = false)]
    public static extern void DwmGetColorizationColor(out int pcrColorization,
      [MarshalAs(UnmanagedType.Bool)] out bool pfOpaqueBlend);

    [DllImport("dwmapi.dll", PreserveSig = false)]
    public static extern IntPtr DwmRegisterThumbnail(IntPtr dest, IntPtr source);

    [DllImport("dwmapi.dll", PreserveSig = false)]
    public static extern void DwmUnregisterThumbnail(IntPtr hThumbnail);

    [DllImport("dwmapi.dll", PreserveSig = false)]
    public static extern void DwmUpdateThumbnailProperties(IntPtr hThumbnail,
      DWM_THUMBNAIL_PROPERTIES props);

    [DllImport("dwmapi.dll", PreserveSig = false)]
    public static extern void DwmQueryThumbnailSourceSize(IntPtr hThumbnail, out Size size);

    [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success), DllImport("advapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
    public static extern bool CloseServiceHandle(IntPtr handle);

    [DllImport("advapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
    public static extern IntPtr OpenSCManager(string machineName, string databaseName, int access);

    [DllImport("advapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
    public static extern IntPtr CreateService(IntPtr databaseHandle, string serviceName,
      string displayName, int access, int serviceType, int startType, int errorControl,
      string binaryPath, string loadOrderGroup, IntPtr pTagId, string dependencies,
      string servicesStartName, string password);

    [DllImport("advapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
    public static extern bool ChangeServiceConfig(IntPtr serviceHandle, UInt32 nServiceType, UInt32 nStartType, UInt32 nErrorControl,
      string lpBinaryPathName, string lpLoadOrderGroup, IntPtr lpdwTagId, string lpDependencies, string lpServiceStartName, string lpPassword, string lpDisplayName);

    [DllImport("advapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
    public static extern bool DeleteService(IntPtr serviceHandle);

    [DllImport("advapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
    public static extern IntPtr OpenService(IntPtr databaseHandle, string serviceName, int access);

    [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true, PreserveSig = true)]
    public static extern bool LookupAccountName(string lpSystemName, string lpAccountName,
      IntPtr psid, ref int cbsid, StringBuilder domainName, ref int cbdomainLength, ref int use);

    [DllImport("advapi32.dll", PreserveSig = true)]
    public static extern UInt32 LsaOpenPolicy(ref LSA_UNICODE_STRING SystemName,
      ref LSA_OBJECT_ATTRIBUTES ObjectAttributes, Int32 DesiredAccess, out IntPtr PolicyHandle);

    [DllImport("advapi32.dll", SetLastError = true, PreserveSig = true)]
    public static extern int LsaAddAccountRights(IntPtr PolicyHandle, IntPtr AccountSid,
      LSA_UNICODE_STRING[] UserRights, int CountOfRights);

    [DllImport("advapi32.dll")]
    public static extern int LsaNtStatusToWinError(int status);

    [DllImport("advapi32")]
    public static extern void FreeSid(IntPtr pSid);

    [DllImport("advapi32.dll")]
    public static extern int LsaClose(IntPtr ObjectHandle);

    [DllImport("advapi32.dll", SetLastError = true, PreserveSig = true)]
    public static extern int LsaEnumerateAccountRights(IntPtr PolicyHandle, IntPtr AccountSid, out IntPtr UserRights, out int CountOfRights);

    [DllImport("Kernel32", CharSet = CharSet.Auto, SetLastError = true)]
    public static extern IntPtr CreateFileMapping(IntPtr hFile, IntPtr lpAttributes,
      FileMapProtection flProtect, Int32 dwMaxSizeHi, Int32 dwMaxSizeLow, string lpName);

    [DllImport("Kernel32", CharSet = CharSet.Auto, SetLastError = true)]
    public static extern IntPtr MapViewOfFile(IntPtr hFileMapping, FileMapAccess dwDesiredAccess,
      Int32 dwFileOffsetHigh, Int32 dwFileOffsetLow, Int32 dwNumberOfBytesToMap);

    [DllImport("kernel32.dll")]
    public static extern bool FlushViewOfFile(IntPtr lpBaseAddress, Int32 dwNumberOfBytesToFlush);

    [DllImport("kernel32")]
    public static extern bool UnmapViewOfFile(IntPtr lpBaseAddress);

    [DllImport("kernel32.dll")]
    public static extern IntPtr CreateEvent(IntPtr lpEventAttributes, bool bManualReset, bool bInitialState, string lpName);

    [DllImport("Kernel32.dll", SetLastError = true)]
    public static extern IntPtr OpenEvent(uint dwDesiredAccess, bool bInheritHandle, string lpName);

    [DllImport("kernel32")]
    private static extern void GetSystemInfo(ref SYSTEM_INFO pSI);

    [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
    public static extern bool LogonUser(String lpszUsername, String lpszDomain, String lpszPassword,
        int dwLogonType, int dwLogonProvider, out SafeTokenHandle phToken);

    #endregion Imports

    #region Helper methods

    public static ushort HiWord(uint Number)
    {
      return (ushort)((Number >> 16) & 0xFFFF);
    }