/// <summary>Error message from HRESULT code</summary>
public static string customErrorMessage(int hr)
{
int mask = hr & facilityMask;
int code = hr & 0xFFFF;
string message;
switch (mask)
{
case linuxErrorCode:
message = LinuxErrors.tryLookup(code);
if (null != message)
{
return($"Linux error code { code }, { message }");
}
return($"Undocumented Linux error code { code }");
case xcbErrorCode:
message = XcbErrors.tryLookup(code);
if (null != message)
{
return($"XCB error code { code }, { message }");
}
return($"Undocumented XCB error code { code }");
case windowsMediaErrorCode:
message = WindowsMediaErrors.tryLookup(code);
if (null != message)
{
return($"Windows media error code { code }: { message }");
}
return($"Undocumented Windows media error code { code }");
}
return(null);
}
/// <summary>Human-readable message in English, from Linux errno result code</summary>
public static string lookupLinuxError(int code)
{
return(LinuxErrors.tryLookup(code));
}