Custom marshalers cannot be used on fields of structures.

[jcljb]

When use Vanara.PInvoke.Shell32.SHFileOperation(SHFILEOPSTRUCT& lpFileOp) (target .NET 6.0)

got a System.TypeLoadException with
Message = "Cannot marshal field 'pFrom' of type 'SHFILEOPSTRUCT': Custom marshalers cannot be used on fields of structures."

What's wrong ?
Regards
JC

[dahall]

You were correct, the definition of SHFILEOPSTRUCT was defined to use custom marshalers that aren't supported on structures. I have corrected it and supplied a test case to show its proper use.

using var from = SafeCoTaskMemHandle.CreateFromStringList([TestCaseSources.WordDoc, TestCaseSources.SmallFile]);
using var to = SafeCoTaskMemHandle.CreateFromStringList([TestCaseSources.TempChildDir]);
SHFILEOPSTRUCT shop = new() { wFunc = ShellFileOperation.FO_COPY, pFrom = from, pTo = to, fFlags = FILEOP_FLAGS.FOF_NOCONFIRMATION };
Win32Error.ThrowLastErrorIf(SHFileOperation(ref shop), i => i != 0);

You should be able to pull v4.0.3 from AppVeyor (see README) shortly and I'll release to NuGet in the next 2 weeks.