public unsafe void GetProcAddress_String()
{
using FreeLibrarySafeHandle moduleHandle = PInvoke.LoadLibrary("kernel32");
FARPROC pGetTickCount = PInvoke.GetProcAddress(moduleHandle, "GetTickCount");
GetTickCountDelegate getTickCount = pGetTickCount.CreateDelegate <GetTickCountDelegate>();
uint ticks = getTickCount();
Assert.NotEqual(0u, ticks);
var getTickCountPtr = (delegate * < uint >)pGetTickCount.Value;
ticks = getTickCountPtr();
Assert.NotEqual(0u, ticks);
}
private unsafe static void TestDllImports(List <string> errors)
{
MethodInfo[] methods = typeof(NativeMethods).GetMethods(BindingFlags.Public | BindingFlags.Static);
var attributes = methods.ToDictionary(x => x, x => x.GetCustomAttribute <DllImportAttribute>());
Dictionary <string, IntPtr> libraries = new Dictionary <string, IntPtr>();
foreach (var attribute in attributes)
{
if (!libraries.ContainsKey(attribute.Value.Value))
{
fixed(char *library = attribute.Value.Value.ToArray())
{
IntPtr handle = NativeMethods.LoadLibrary(library);
if (handle == IntPtr.Zero)
{
errors.Add("Library " + attribute.Value.Value + " cannot be loaded.");
continue;
}
libraries[attribute.Value.Value] = handle;
}
}
fixed(byte *entryPoint = Encoding.ASCII.GetBytes(attribute.Value.EntryPoint))
{
FARPROC address = NativeMethods.GetProcAddress(libraries[attribute.Value.Value], (sbyte *)entryPoint);
if (address == IntPtr.Zero)
{
errors.Add("Function " + attribute.Value.EntryPoint + " was not found in library " + attribute.Value.Value + ".");
continue;
}
}
}
}
public static extern bool IsBadCodePtr(FARPROC lpfn);
public static extern System.IntPtr ICOpenFunction(uint fccType, uint fccHandler, uint wMode, FARPROC lpfnHandler);
private static void FARPROC_InSignatureChangedToIntPtr()
{
FARPROC p = PInvoke.GetProcAddress(default(HINSTANCE), default(PCSTR));
p = PInvoke.GetProcAddress(default(SafeHandle), null);
}
