Exemple #1
0
        static void TestSimpleDllLoadLibrary()
        {
            Console.WriteLine("Simple:Use DllLoadLibrary,");
            IntPtr hModule = Win32.LoadLibrary("testCppDll.dll");
            int    error   = Marshal.GetLastWin32Error();

            if (hModule == IntPtr.Zero)
            {
                return;
            }
            unsafe
            {
                Add addFunction = (Add)UseDllByLoadLibrary.GetFunctionAddress(hModule, "Add", typeof(Add));
                error = Marshal.GetLastWin32Error();
                Console.WriteLine(addFunction(1.0, 2.0));
            }
            Win32.FreeLibrary(hModule);
            Console.WriteLine("Simple:Test END\n");
        }
        public void TestComplexLoadLibrary()
        {
            IntPtr hModule = Win32.LoadLibrary("testCppDll.dll");
            int    error   = Marshal.GetLastWin32Error();

            //Console.WriteLine("The Last Win32 Error was: " + error);
            if (hModule == IntPtr.Zero)
            {
                return;
            }
            unsafe
            {
                InitFunc initFunc = (InitFunc)UseDllByLoadLibrary.GetFunctionAddress(hModule, "Initialize", typeof(InitFunc));
                bool     isInit   = initFunc("");
                if (isInit)
                {
                    string    text          = "";
                    FindNames findNamesFunc = (FindNames)UseDllByLoadLibrary.GetFunctionAddress(hModule, "FindNames", typeof(FindNames));
                    IntPtr    arrayPtr      = IntPtr.Zero;
                    uint      arraySize;
                    if (findNamesFunc(text, out arrayPtr, out arraySize))
                    {
                        NameEntity[] names = new NameEntity[arraySize];
                        IntPtr       cur   = arrayPtr;
                        for (int i = 0; i < arraySize; i++)
                        {
                            names[i] = new NameEntity();
                            Marshal.PtrToStructure(cur, names[i]);
                            Marshal.DestroyStructure(cur, typeof(NameEntity));
                            cur = (IntPtr)((int)cur + Marshal.SizeOf(names[i]));
                        }
                        Assert.AreEqual(names.Count(), arraySize);
                    }
                    Assert.AreNotEqual(arrayPtr, IntPtr.Zero);
                    Marshal.FreeCoTaskMem(arrayPtr);
                }
            }
            Win32.FreeLibrary(hModule);
        }