sean-m
/
Vanara
mirror of https://github.com/dahall/Vanara.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Added ability to add lib to HRESULT.ToString

nullableenabled
David Hall 2023-09-06 21:20:02 -06:00
parent ba9d742d3a
commit d7593eadf3
1 changed files with 33 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
PInvoke/Shared/WinError/HRESULT.cs
View File

@ -747,7 +747,7 @@ public partial struct HRESULT : IComparable, IComparable<HRESULT>, IEquatable<HR
}
}
}
var msg = FormatMessage(unchecked((uint)_value));
var msg = FormatMessage(unchecked((uint)_value), StaticFieldValueHash.GetFieldLib<HRESULT, int>(_value));
return (err ?? string.Format(CultureInfo.InvariantCulture, "0x{0:X8}", _value)) + (msg == null ? "" : ": " + msg);
}
@ -792,27 +792,44 @@ public partial struct HRESULT : IComparable, IComparable<HRESULT>, IEquatable<HR
/// <summary>Formats the message.</summary>
/// <param name="id">The error.</param>
/// <param name="lib">The optional library.</param>
/// <returns>The string.</returns>
internal static string FormatMessage(uint id)
internal static string FormatMessage(uint id, string? lib = null)
{
var flags = 0x1200U; // FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM
var flags = lib is null ? 0x1200U /*FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM*/ : 0xA00U /*FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_HMODULE*/;
HINSTANCE hInst = lib is null ? default : LoadLibraryEx(lib, default, 0x1002 /*LOAD_LIBRARY_SEARCH_DEFAULT_DIRS | LOAD_LIBRARY_AS_DATAFILE*/);
var buf = new StringBuilder(1024);
do
try
{
if (0 != FormatMessage(flags, default, id, 0, buf, (uint)buf.Capacity, default))
return buf.ToString();
var lastError = Win32Error.GetLastError();
if (lastError == Win32Error.ERROR_MR_MID_NOT_FOUND || lastError == Win32Error.ERROR_MUI_FILE_NOT_FOUND)
break;
if (lastError != Win32Error.ERROR_INSUFFICIENT_BUFFER)
lastError.ThrowIfFailed();
buf.Capacity *= 2;
} while (true && buf.Capacity < 1024 * 16); // Don't go crazy
do
{
if (0 != FormatMessage(flags, hInst, id, 0, buf, (uint)buf.Capacity, default))
return buf.ToString();
var lastError = Win32Error.GetLastError();
if (lastError == Win32Error.ERROR_MR_MID_NOT_FOUND || lastError == Win32Error.ERROR_MUI_FILE_NOT_FOUND || lastError == Win32Error.ERROR_RESOURCE_TYPE_NOT_FOUND)
break;
if (lastError != Win32Error.ERROR_INSUFFICIENT_BUFFER)
lastError.ThrowIfFailed();
buf.Capacity *= 2;
} while (true && buf.Capacity < 1024 * 16); // Don't go crazy
}
finally
{
if (hInst != default)
FreeLibrary(hInst);
}
return string.Empty;
}
[DllImport(Lib.Kernel32, SetLastError = true, CharSet = CharSet.Auto)]
private static extern int FormatMessage(uint dwFlags, HINSTANCE lpSource, uint dwMessageId, uint dwLanguageId, StringBuilder lpBuffer, uint nSize, IntPtr Arguments);
[DllImport(Lib.Kernel32, SetLastError = true, CharSet = CharSet.Auto)]
static extern int FormatMessage(uint dwFlags, HINSTANCE lpSource, uint dwMessageId, uint dwLanguageId, StringBuilder lpBuffer, uint nSize, IntPtr Arguments);
[DllImport(Lib.Kernel32, SetLastError = true, ExactSpelling = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool FreeLibrary([In] HINSTANCE hLibModule);
[DllImport(Lib.Kernel32, SetLastError = true, CharSet = CharSet.Auto)]
static extern HINSTANCE LoadLibraryEx([MarshalAs(UnmanagedType.LPTStr)] string lpLibFileName, HANDLE hFile, uint dwFlags);
}
private static int? ValueFromObj(object? obj)
{