public ResourceUpdater AddResourcesFromPEImage()

in src/Tasks/Microsoft.NET.Build.Tasks/ResourceUpdater.cs [229:274]
38 lines of code
6 McCabe index (conditional complexity)

        public ResourceUpdater AddResourcesFromPEImage(string peFile)
        {
            if (hUpdate.IsInvalid)
            {
                ThrowExceptionForInvalidUpdate();
            }

            // Using both flags lets the OS loader decide how to load
            // it most efficiently. Either mode will prevent other
            // processes from modifying the module while it is loaded.
            IntPtr hModule = Kernel32.LoadLibraryEx(peFile, IntPtr.Zero,
                                                    Kernel32.LoadLibraryFlags.LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE |
                                                    Kernel32.LoadLibraryFlags.LOAD_LIBRARY_AS_IMAGE_RESOURCE);
            if (hModule == IntPtr.Zero)
            {
                ThrowExceptionForLastWin32Error();
            }

            var enumTypesCallback = new Kernel32.EnumResTypeProc(EnumAndUpdateTypesCallback);
            var errorInfo = new EnumResourcesErrorInfo();
            GCHandle errorInfoHandle = GCHandle.Alloc(errorInfo);
            var errorInfoPtr = GCHandle.ToIntPtr(errorInfoHandle);

            try
            {
                if (!Kernel32.EnumResourceTypes(hModule, enumTypesCallback, errorInfoPtr))
                {
                    if (Marshal.GetHRForLastWin32Error() != Kernel32.ResourceDataNotFoundHRESULT)
                    {
                        CaptureEnumResourcesErrorInfo(errorInfoPtr);
                        errorInfo.ThrowException();
                    }
                }
            }
            finally
            {
                errorInfoHandle.Free();

                if (!Kernel32.FreeLibrary(hModule))
                {
                    ThrowExceptionForLastWin32Error();
                }
            }

            return this;
        }