Why does DllImport not work for me?

All methods marked with the DllImport attribute must be marked as public static extern.

Interview Candidate
Sep 14th, 2004
7
4502

First
Prev
Next
Last

Showing Answers 1 - 7 of 7 Answers

Timothy Marin

Sep 22nd, 2005

be sure to referance System.Runtime.InteropServices;

jbanx
Profile Answers by jbanx Questions by jbanx

Apr 17th, 2007

Following is the example to use it properly This is from msdn for more visit
http://msdn2.microsoft.com/en-us/library/system.runtime.interopservices.dllimportattribute.aspx


using System;
using System.Runtime.InteropServices;

class Example
{
    // Use DllImport to import the Win32 MessageBox function.
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    public static extern int MessageBox(IntPtr hWnd, String text, String caption, uint type);
    
    static void Main()
    {
        // Call the MessageBox function using platform invoke.
        MessageBox(new IntPtr(0), "Hello World!", "Hello Dialog", 0);
    }
}