private static void ReleaseCOMObject()
{
SimpleCOMCalculatorClass comObj = new SimpleCOMCalculatorClass();
int integer = 5;
Console.Write("!{0} = ", integer);
try
{
comObj.Factorial(ref integer);
// ��ʾCOM�������ý��
Console.WriteLine("{0}", integer);
}
finally
{
// ��ʽ�ͷ�COM����
Console.WriteLine("����Marshal.ReleaseComObject()�ͷ�COM����...");
int referenceCount = Marshal.ReleaseComObject(comObj);
Console.WriteLine("COM����Ŀǰ�����ü���Ϊ��{0}", referenceCount);
}
Console.WriteLine("�ٴε���COM����ķ���Add()��");
try
{
int result = comObj.Add(3, 5);
Console.WriteLine("3 + 5 = {0}", result);
}
catch (Exception e)
{
Console.WriteLine("�쳣�׳���{0}\n��Ϣ��{1}", e.GetType().Name, e.Message);
}
}
static void CreateInstanceByWrapper()
{
int num0 = 6, num1 = 4;
SimpleCOMCalculatorClass calcObj = new SimpleCOMCalculatorClass();
Console.WriteLine("���㣺{0} + {1} = {2}",
num0, num1, calcObj.Add(num0, num1));
Console.WriteLine("���㣺{0} - {1} = {2}",
num0, num1, calcObj.Subtract(num0, num1));
ISimpleCOMCalculator calcInterfaceObj = new SimpleCOMCalculatorClass();
Console.WriteLine("���㣺{0} * {1} = {2}",
num0, num1, calcInterfaceObj.Multiply(num0, num1));
Console.WriteLine("���㣺{0} / {1} = {2}",
num0, num1, calcInterfaceObj.Divide(num0, num1));
int factorialResult = num1;
calcInterfaceObj.Factorial(ref factorialResult);
Console.WriteLine("���㣺!{0} = {1}",
num1, factorialResult);
}
static void Main(string[] args)
{
Console.WriteLine("��ʼApartmentΪ: {0}",
Thread.CurrentThread.GetApartmentState());
int result = 0;
// ����STA COM����
SimpleCOMCalculatorClass staObj
= new SimpleCOMCalculatorClass();
result = staObj.Add(3, 5);
Console.WriteLine("STA������3 + 5 = {0}, Threading: {1}",
result, Thread.CurrentThread.GetApartmentState());
// ����MTA COM����
COMMTAObjClass mtaObj
= new COMMTAObjClass();
result = mtaObj.AddIntegers(3, 5);
Console.WriteLine("MTA����: 3 + 5 = {0}, Threading: {1}",
result, Thread.CurrentThread.GetApartmentState());
// ʹ��SetApartmentState����Apartment
try
{
Thread.CurrentThread.SetApartmentState(
ApartmentState.MTA);
Console.WriteLine(
"����SetApartmentState����: {0}", ApartmentState.MTA);
}
catch (InvalidOperationException e)
{
Console.WriteLine(
"SetApartmentState�׳��쳣��Ϣ: {0}",
e.Message);
}
// ʹ��TrySetApartmentState����Apartment
try
{
bool changeStatus =
Thread.CurrentThread.TrySetApartmentState(
ApartmentState.MTA);
Console.WriteLine(
"TrySetApartmentState���ؽ��: ����{0}",
changeStatus ? "�ɹ�" : "ʧ��");
}
catch (InvalidOperationException e)
{
Console.WriteLine(
"TrySetApartmentStates�׳��쳣��Ϣ: {0}",
e.Message);
}
Console.WriteLine("\r\n��������˳�...");
Console.Read();
}
