- cominteropwithdotnetsource.zip
- COMInteropWithDOTNET
- COMInteropWithDOTNETSource
- ClassicCOM
- AirlineInformation
- AirlineNotify
- IceCreamParlor
- MyFlyer
- NETThreadDemoClient
- VBAirlineControlTower
- VBIceCreamParlor
- IceCreamMenu.cls
- stdole.dll
- VBIceCreamProject.exp
- VBIceCreamProject.lib
- VBIceCreamProject.vbp
- VBIceCreamProject.vbw
- VBTestClient
- VBWeatherStation
- DOTNET-CSharpFiles
- cominteropwithdotnetdemo.zip
- COMInteropWithDOTNETDemo
- AirlineClient.exe
- AirlineInformation.dll
- AirlineMetadata.dll
- AirlineNotify.exe
- AirlineNotifyClient.exe
- AirlineNotifyMetadata.dll
- ControlTower.exe
- DelegateTest.exe
- Directional.dll
- FlightClient.exe
- HelloDotNet.dll
- HelloWorldDelegate.exe
- IceCreamMenuClient.exe
- IceCreamMenuMetadata.dll
- IceCreamParlor.dll
- MyFlyer.dll
- MyFlyerMetadata.dll
- NETThreadDemoClient.exe
- RegisterAll.bat
- SevenDwarfs.exe
- Temperature.dll
- VBIceCreamProject.dll
- VBTestClient.exe
- VBWeatherStation.exe
- WeatherNotify.dll
- cominterop_demo.zip
- ComInteropDemo
- AirlineCSharpClient
- AirlineInformation
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using System;
using System.Runtime.InteropServices;
using System.Reflection;
using AirlineMetadata;
interface IJunkInterface
{
}
public class CAirlineClient
{
public static void Main()
{
/*
* Early binding example
*/
String strAirline = "Air Scooby IC 5678";
String strFoodJunkieAirline = "Air Jughead TX 1234";
try
{
AirlineInfo objAirlineInfo;
// Create a new AirlineInfo Object
objAirlineInfo = new AirlineInfo();
// Display the output after calling the GetAirileTiming method
System.Console.WriteLine("Details for Airline {0} --> {1}",
strAirline,objAirlineInfo.GetAirlineTiming(strAirline));
// This will throw us the
System.Console.WriteLine("Details for Airline {0} --> {1}",
strFoodJunkieAirline,objAirlineInfo.GetAirlineTiming(strFoodJunkieAirline));
}
catch(COMException ex1COM)
{
System.Console.WriteLine("Oops an error occured !. Error Code is : {0}. Error message is : {1}",
ex1COM.ErrorCode,ex1COM.Message);
}
catch(Exception ex1)
{
System.Console.WriteLine("Oops !. An exception occured : {0} ",
ex1.Message);
}
/*
* QueryInterface Example
*/
try
{
AirlineInfo objAirlineInfo = null;
IAirportFacilitiesInfo objFacilitiesInfo = null;
// Create a new AirlineInfo object
objAirlineInfo = new AirlineInfo();
// Invoke the GetAirlineTiming method
String strDetails = objAirlineInfo.GetAirlineTiming(strAirline);
// Check to see if the AirlineInfo object supports the
// IAirportFacilitiesInfo interface using C#'s 'is' operator
// The class is always going to be of that type
/*
if(objAirlineInfo is IAirportFacilitiesInfo)
{
*/
// Perform a cast to get the QI done
objFacilitiesInfo = (IAirportFacilitiesInfo)objAirlineInfo;
// There's always more than one way to skin a cat
// You could even perform the cast using C#'s 'as' operator
objFacilitiesInfo = objAirlineInfo as IAirportFacilitiesInfo;
//Invoke a method on the IAirportFacilitiesInfo interface
System.Console.WriteLine("{0}",objFacilitiesInfo.GetInternetCafeLocations());
/*
}
*/
// Let's check against an arbitrary interface type
if(objAirlineInfo is IJunkInterface)
{
System.Console.WriteLine("We should never get here ");
}
else
{
System.Console.WriteLine("I'm sorry I don't implement the IJunkInterface interface ");
}
// And now let's ask for some trouble and have the
// interop throw us an invalid cast exception.
IJunkInterface objJunk = null;
objJunk = (IJunkInterface)objAirlineInfo;
}/* end try */
catch(InvalidCastException eCast)
{
System.Console.WriteLine("Here comes trouble ... Error Message : {0}",eCast.Message);
}/* end catch */
/*
* Late Binding Example
*/
try
{
object objAirlineLateBound;
Type objTypeAirline;
// Create an object array containing the input params
object[] arrayInputParams= { "Air Scooby IC 5678" };
//Get the type information from the progid
objTypeAirline = Type.GetTypeFromProgID("AirlineInformation.AirlineInfo");
// Here's how you use the COM CLSID to get the associated .NET System.Type
// objTypeAirline = Type.GetTypeFromCLSID(new Guid("{F29EAEEE-D445-403B-B89E-C8C502B115D8}"));
// Create an instance of the object
objAirlineLateBound = Activator.CreateInstance(objTypeAirline);
// Invoke the 'GetAirlineTiming' method
String str = (String)objTypeAirline.InvokeMember("GetAirlineTiming",
BindingFlags.Default | BindingFlags.InvokeMethod,
null, objAirlineLateBound,
arrayInputParams);
System.Console.WriteLine("Late Bound Call - Air Scooby Arrives at {0}",str);
// Get the value of the 'LocalTimeAtOrlando' property
String strTime = (String)objTypeAirline.InvokeMember("LocalTimeAtOrlando",
BindingFlags.Default | BindingFlags.GetProperty,
null, objAirlineLateBound,
new object [] {});
Console.WriteLine ("Late Bound Call - Local Time at Orlando,Florida is: {0}", strTime);
}/* end try */
catch(COMException e)
{
System.Console.WriteLine("Error Code : {0} , Error Message : {1}",e.ErrorCode,e.Message);
}/* end catch */
}/* end Main */
}/* end class */
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