/// <summary>
/// Obtains the icon group resources from the provided root win32 resources directory.
/// </summary>
/// <param name="rootDirectory">The root resources directory to extract the icon group from.</param>
/// <returns>The icon group resources, or <c>null</c> if none was found.</returns>
/// <exception cref="ArgumentException">Occurs when the resource data is not readable.</exception>
public static IconResource FromDirectory(IResourceDirectory rootDirectory)
{
var groupIconDirectory = (IResourceDirectory)rootDirectory.Entries[ResourceDirectoryHelper.IndexOfResourceDirectoryType(rootDirectory, ResourceType.GroupIcon)];
var iconDirectory = (IResourceDirectory)rootDirectory.Entries[ResourceDirectoryHelper.IndexOfResourceDirectoryType(rootDirectory, ResourceType.Icon)];
if (groupIconDirectory is null || iconDirectory is null)
{
return(null);
}
var result = new IconResource();
foreach (var iconGroupResource in groupIconDirectory.Entries.OfType <IResourceDirectory>())
{
var dataEntry = iconGroupResource
?.Entries
.OfType <IResourceData>()
.FirstOrDefault();
if (dataEntry is null)
{
return(null);
}
if (!dataEntry.CanRead)
{
throw new ArgumentException("Icon group data is not readable.");
}
result.AddEntry(iconGroupResource.Id, IconGroupDirectory.FromReader(dataEntry.CreateReader(), iconDirectory));
}
return(result);
}
/// <summary>
/// Obtains the version info resource from the provided root win32 resources directory.
/// </summary>
/// <param name="rootDirectory">The root resources directory to extract the version info from.</param>
/// <returns>The version info resource, or <c>null</c> if none was found.</returns>
public static VersionInfoResource FromDirectory(IResourceDirectory rootDirectory)
{
var versionDirectory = (IResourceDirectory)rootDirectory.Entries[ResourceDirectoryHelper.IndexOfResourceDirectoryType(rootDirectory, ResourceType.Version)];
var categoryDirectory = versionDirectory
?.Entries
.OfType <IResourceDirectory>()
.FirstOrDefault();
var dataEntry = categoryDirectory
?.Entries
.OfType <IResourceData>()
.FirstOrDefault();
if (dataEntry is null)
{
return(null);
}
if (dataEntry.CanRead)
{
var dataReader = dataEntry.CreateReader();
return(FromReader(ref dataReader));
}
if (dataEntry.Contents is VersionInfoResource resource)
{
return(resource);
}
throw new ArgumentException("Version resource data is not readable.");
}
