/
pinvoke17.cs
96 lines (67 loc) · 1.87 KB
/
pinvoke17.cs
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using System;
using System.Runtime.InteropServices;
[StructLayout (LayoutKind.Sequential)]
public class OSVersionInfo
{
public int a;
public int b;
}
[StructLayout (LayoutKind.Sequential)]
public struct OSVersionInfo2
{
public int a;
public int b;
}
public class LibWrap
{
[DllImport ("libtest")]
public static extern int GetVersionEx ([In, Out] OSVersionInfo osvi);
[DllImport ("libtest")]
public static extern int BugGetVersionEx (int a, int b, int c, int d, int e, int f, int g, int h, [In, Out] OSVersionInfo osvi);
[DllImport ("libtest", EntryPoint="GetVersionEx" )]
public static extern int GetVersionEx2 (ref OSVersionInfo2 osvi);
}
public class Test
{
public static int Main()
{
Console.WriteLine( "\nPassing OSVersionInfo as class" );
OSVersionInfo osvi = new OSVersionInfo();
osvi.a = 1;
osvi.b = 2;
if (LibWrap.GetVersionEx (osvi) != 5)
return 1;
if (osvi.a != 2)
return 2;
if (osvi.b != 3)
return 3;
Console.WriteLine( "A: {0}", osvi.a);
Console.WriteLine( "B: {0}", osvi.b);
Console.WriteLine( "\nPassing OSVersionInfo as struct" );
OSVersionInfo2 osvi2 = new OSVersionInfo2();
osvi2.a = 1;
osvi2.b = 2;
if (LibWrap.GetVersionEx2 (ref osvi2) != 5)
return 4;
if (osvi2.a != 2)
return 5;
if (osvi2.b != 3)
return 6;
Console.WriteLine( "A: {0}", osvi2.a);
Console.WriteLine( "B: {0}", osvi2.b);
Console.WriteLine ("Testing with extra parameters at the beginning");
OSVersionInfo osvi3 = new OSVersionInfo();
osvi3.a = 1;
osvi3.b = 2;
if (LibWrap.BugGetVersionEx (10, 10, 10, 10, 20, 20, 20, 20, osvi3) != 5)
return 7;
if (osvi3.a != 2)
return 8;
if (osvi3.b != 3)
return 9;
Console.WriteLine( "A: {0}", osvi.a);
Console.WriteLine( "B: {0}", osvi.b);
Console.WriteLine( "\nPassing OSVersionInfo as struct" );
return 0;
}
}