public static string GetDefaultProgramPathRelated(string Path)
{
for (uint BufferSize = 512; ; BufferSize += 512)
{
StringBuilder Builder = new StringBuilder(Convert.ToInt32(BufferSize));
HRESULT Result = ShlwApi.AssocQueryString(ShlwApi.ASSOCF.ASSOCF_NOFIXUPS | ShlwApi.ASSOCF.ASSOCF_VERIFY | ShlwApi.ASSOCF.ASSOCF_NOTRUNCATE | ShlwApi.ASSOCF.ASSOCF_INIT_DEFAULTTOSTAR | ShlwApi.ASSOCF.ASSOCF_REMAPRUNDLL, ShlwApi.ASSOCSTR.ASSOCSTR_EXECUTABLE | ShlwApi.ASSOCSTR.ASSOCSTR_APPID, System.IO.Path.GetExtension(Path).ToLower(), null, Builder, ref BufferSize);
if (Result == HRESULT.S_OK)
{
string ExePath = Builder.ToString();
if (System.IO.Path.IsPathRooted(ExePath))
{
return(ExePath);
}
else
{
return(ExePath.Replace("@", string.Empty).Replace("{", string.Empty).Replace("}", string.Empty).Split('?').FirstOrDefault());
}
}
else if (Result == HRESULT.E_POINTER)
{
continue;
}
else
{
return(string.Empty);
}
}
}
private static IShellItem2 GetShellItemFromCommandLine()
{
var ppszCmd = Environment.GetCommandLineArgs();
var szSpec = new StringBuilder(ppszCmd.FirstOrDefault(s => s.Length > 1 && s[0] != '-' && s[0] != '/'));
ShlwApi.PathUnquoteSpaces(szSpec);
if (string.IsNullOrEmpty(szSpec.ToString()))
{
return(null);
}
var hr = SHCreateItemFromParsingName(szSpec.ToString(), null, typeof(IShellItem2).GUID, out var ppv);
return(hr.Succeeded ? (IShellItem2)ppv : SHCreateItemFromParsingName <IShellItem2>(Environment.CurrentDirectory));
}
public static string GetAssociate(string Path)
{
Task <string> RunTask = Task.Run(() =>
{
try
{
uint Length = 0;
if (ShlwApi.AssocQueryString(ShlwApi.ASSOCF.ASSOCF_NOFIXUPS | ShlwApi.ASSOCF.ASSOCF_VERIFY, ShlwApi.ASSOCSTR.ASSOCSTR_EXECUTABLE, System.IO.Path.GetExtension(Path), null, null, ref Length) == HRESULT.S_FALSE)
{
StringBuilder Builder = new StringBuilder((int)Length);
if (ShlwApi.AssocQueryString(ShlwApi.ASSOCF.ASSOCF_NOFIXUPS | ShlwApi.ASSOCF.ASSOCF_VERIFY, ShlwApi.ASSOCSTR.ASSOCSTR_EXECUTABLE, System.IO.Path.GetExtension(Path), null, Builder, ref Length) == HRESULT.S_OK)
{
return(Builder.ToString());
}
else
{
return(string.Empty);
}
}
else
{
return(string.Empty);
}
}
catch
{
return(string.Empty);
}
});
if (SpinWait.SpinUntil(() => RunTask.IsCompleted, 3000))
{
return(RunTask.Result);
}
else
{
return(string.Empty);
}
}
