public override IEnumerable <string> GetDefaultPrograms(string file)
{
string SearchExecutableInSameDirectory(string path)
{
if (Path.GetExtension(path) != "")
{
return(path);
}
foreach (string ext in ExecutableFileExtensions)
{
string newPath = Path.ChangeExtension(path, ext);
if (File.Exists(newPath))
{
return(newPath);
}
}
return(path);
}
string extension = Path.GetExtension(file);
if (string.IsNullOrWhiteSpace(extension))
{
yield break;
}
string defaultProgramOnDblClick = Win32Native.AssocQueryString(Win32Native.AssocStr.Executable, extension);
if (!string.IsNullOrWhiteSpace(defaultProgramOnDblClick) && File.Exists(defaultProgramOnDblClick))
{
yield return(Path.GetFullPath(defaultProgramOnDblClick));
}
string baseKey = $@"Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\{extension}";
using RegistryKey rk = Registry.CurrentUser.OpenSubKey($@"{baseKey}\OpenWithList");
if (rk?.GetValue("MRUList") is not string mruList)
{
yield break;
}
foreach (char c in mruList)
{
string fullPath = SearchExecutableInSameDirectory(GetFullPath(rk.GetValue(c.ToString()).ToString()));
if (fullPath == null)
{
continue;
}
yield return(fullPath);
}
}