- buildcomserversindotnet_src.zip
- CSharpExeCOMServers
- IDotNetClassFactory
- clients
- CPPClient01
- implementations
- IDotNetClassFactory_Impl01
- interfaces
- IDotNetClassFactory
- testobjects
- implementations
- ITestCSharpObjectInterfacesImpl01
- interface
- ITestCSharpObjectInterfaces
- ManagedCOMLocalServer
- clients
- CPPClient01
- implementations
- ManagedCOMLocalServer_Impl01
- UsingStandardCOMInterop
- clients
- CPP
- CPPClient01
- implementations
- SimpleCOMObject_CSharpExeImpl
- SimpleCOMObject
- clients
- CPP
- CPPClient01
- VB
- VBClient01
- FormMain.frm
- MSSCCPRJ.SCC
- VBClient01.exe
- VBClient01.vbp
- VBClient01.vbw
- implementations
- C#
- SimpleCOMObject_CSharpImpl
- CPP
- SimpleCOMObject_CPPImpl
- interfaces
- SimpleCOMObject
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using System;
using System.Diagnostics;
using System.Text;
using System.Windows.Forms; // For using MessageBox.
using Interop.SimpleCOMObject; // In order to implement ISimpleCOMObject.
using System.Runtime.InteropServices; // For use of the GuidAttribute, ProgIdAttribute and ClassInterfaceAttribute.
namespace ManagedCOMLocalServer_Impl01
{
/// <summary>
/// Summary description for SimpleCOMObject.
/// This is the class that will be exported to unmanaged COM client apps.
/// </summary>
[
Guid("E1FE1223-45C2-4872-9B1E-634FB850E753"), // We indicate a specific CLSID for "ManagedCOMLocalServer_Impl01.SimpleCOMObject" for convenience of searching the registry.
ProgId("ManagedCOMLocalServer_Impl01.SimpleCOMObject"), // This ProgId is used by default. Not 100% necessary.
ClassInterface(ClassInterfaceType.None) // Specify that we will not generate any additional interface with a name like _SimpleCOMObject.
]
public class SimpleCOMObject :
ReferenceCountedObjectBase, // SimpleCOMObject is derived from ReferenceCountedObjectBase so that we can track its creation and destruction.
ISimpleCOMObject // SimpleCOMObject must implement the ISimpleCOMObject interface.
{
private int m_iLongProperty;
public SimpleCOMObject()
{
// ReferenceCountedObjectBase constructor will be invoked.
Console.WriteLine("SimpleCOMObject constructor.");
}
~SimpleCOMObject()
{
// ReferenceCountedObjectBase destructor will be invoked.
Console.WriteLine("SimpleCOMObject destructor.");
}
public int LongProperty
{
get
{
return m_iLongProperty;
}
set
{
m_iLongProperty = value;
}
}
public void Method01 (String strMessage)
{
StringBuilder sb = new StringBuilder(strMessage);
sb.Append(LongProperty.ToString());
MessageBox.Show(sb.ToString(), "ManagedCOMLocalServer_Impl01.SimpleCOMObject");
}
}
class SimpleCOMObjectClassFactory : ClassFactoryBase
{
public override void virtual_CreateInstance(IntPtr pUnkOuter, ref Guid riid, out IntPtr ppvObject)
{
Console.WriteLine("SimpleCOMObjectClassFactory.CreateInstance().");
Console.WriteLine("Requesting Interface : " + riid.ToString());
if (riid == Marshal.GenerateGuidForType(typeof(ISimpleCOMObject)) ||
riid == ManagedCOMLocalServer_Impl01.IID_IDispatch ||
riid == ManagedCOMLocalServer_Impl01.IID_IUnknown)
{
SimpleCOMObject SimpleCOMObject_New = new SimpleCOMObject();
ppvObject = Marshal.GetComInterfaceForObject(SimpleCOMObject_New, typeof(ISimpleCOMObject));
}
else
{
throw new COMException("No interface", unchecked((int) 0x80004002));
}
}
}
}
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Lim Bio Liong is a Specialist at a leading Software House in Singapore.
Bio has been in software development for over 10 years. He specialises in C/C++ programming and Windows software development.
Bio has also done device-driver development and enjoys low-level programming. Bio has recently picked up C# programming and has been researching in this area.