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Revision: 16237
at July 29, 2009 14:25 by jimfred
Initial Code 
using System;
using System.Runtime.InteropServices;

class Example
{
    // Use DllImport to import the Win32 MessageBox function.
    [DllImport("user32.dll", CharSet = CharSet.Unicode)]
    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);
    }
}
Initial URL 
http://msdn.microsoft.com/en-us/library/system.runtime.interopservices.dllimportattribute.aspx
Initial Description 
[1] Add 'using System.Runtime.InteropServices;' 
[2] Add DllImport and function declaration
[3] call function.

This example involves passing strings and  passing IntPtr.
Initial Title 
C# calling a DLL API, in this case, MessageBox in user32.dll
Initial Tags 

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
C#