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Interop.Call windows shell help
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Ezra
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RE: Interop.Call windows shell help
I tried creating a C# wrapper for the function however this is the first time I'm attempting to use unsafe code in C# and my C# skills are lacking anyway, so I'm running into some walls.

I can't read the result from the function, maybe anyone here knows what I'm doing wrong?

C# code:
using System;
using System.Runtime.InteropServices;

namespace EstimateFileRiskLevelWrapper
{
    public class EstimateFileRiskLevelWrapper
    {
        [DllImport("winshfhc.dll", EntryPoint = "#101")]
        public static extern int EstimateFileRiskLevel([MarshalAs(UnmanagedType.LPWStr)] String pszFilePath, [MarshalAs(UnmanagedType.LPWStr)] String pszExt, [MarshalAs(UnmanagedType.LPWStr)] String pszHandler, ref IntPtr riskLevel);
        /*HRESULT EstimateFileRiskLevel(
            LPCWSTR pszFilePath,
            LPCWSTR pszExt,
            LPCWSTR pszHandler,
            FILE_RISK_LEVEL *pfrlEstimate
        );*/
    }
}

Trying to use the function with:
C# code:
EstimateFileRiskLevelWrapper.EstimateFileRiskLevelWrapper.EstimateFileRiskLevel(
                    fpath,
                    ".php",
                    hpath,
                    ref risklevel);
                IntPtr ptr = Marshal.ReadIntPtr(risklevel);

but I'm getting an AccessViolationException at the last line (reading the pointer).
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11-09-2009 04:15 PM
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Messages In This Thread
Interop.Call windows shell help - by wincy on 11-08-2009 at 08:19 PM
RE: Interop.Call windows shell help - by Spunky on 11-08-2009 at 08:24 PM
RE: Interop.Call windows shell help - by wincy on 11-09-2009 at 12:10 AM
RE: RE: Interop.Call windows shell help - by CookieRevised on 11-09-2009 at 01:22 AM
RE: RE: RE: Interop.Call windows shell help - by wincy on 11-09-2009 at 03:26 PM
RE: Interop.Call windows shell help - by Ezra on 11-09-2009 at 04:15 PM
RE: Interop.Call windows shell help - by matty on 11-09-2009 at 05:32 PM
RE: Interop.Call windows shell help - by CookieRevised on 11-10-2009 at 07:51 AM
RE: Interop.Call windows shell help - by Ezra on 11-11-2009 at 10:55 PM


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