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getmodulefilename (kernel32)

C# Signature:

[DllImport("kernel32.dll", SetLastError=true)]
public static extern uint GetModuleFileName
    IntPtr hModule,

    StringBuilder lpFilename,

    int nSize

VB.Net Signature:

<DllImport("kernel32.dll", SetLastError:=True)> <PreserveSig()> _
Public Function GetModuleFileName(<[In]()> ByVal hModule As IntPtr, <Out()> ByVal lpFilename As StringBuilder, <[In]()> <MarshalAs(UnmanagedType.U4)> ByVal nSize As Integer) As UInteger
End Function

User-Defined Types:




Tips & Tricks:

If you want to use GetModuleFilename to retrieve the path the current executable was started from, you should instead consider using System.Windows.Forms.Application.StartupPath. This is a wrapper around GetModuleFilename, so it probably does exactly what you want.

Another way: Process.GetCurrentProcess().MainModule.FileName

Sample Code:

using System;
using System.Text;
using System.Runtime.InteropServices;
using Library.Win32.Process;

namespace Test
    class Class1
    static void Main(string[] args)
        StringBuilder fileName = new StringBuilder(255);
        DllFuntions.GetModuleFileName(IntPtr.Zero, fileName, fileName.Capacity);

Alternative Managed API:

System.Diagnostics.ProcessModule.FileName or System.Reflection.Module.FullyQualifiedName.


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