Creating a COM object
- From: "Carlos Lozano" <CarlosLozano@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Mon, 4 Jul 2005 00:32:03 -0700
Hi,
What is the right way to create an OCX COM component. The component is
already registerred, but can't create an instance. I am using the reference
to the interop module created.
If I use javascript or vbscript it works.
I will appreciate any help.
I do the following (C#):
Attempt # 1:
using System;
using MTMicrImage; // reference to the component
public class oMirImage : MTMicrImage.MicrImage // derives from interface
{
// create an instance of the base to use it in the implementation
private MTMicrImage.MicrImageClass obase = new
MTMicrImage.MicrImageClass();
public oMicrImage()
{
}
#region methods
// All methods go here
# endregion
#region properties
// All properties go here
#endregion
}
Whn compiling I get an error saying "MTMicrImage.MicrImageClass " is not
accessible due to its protection level
Same happend if the class inherits from the base clalss and the inteface as
follows:
..
..
public class oMirImage : MTMicrImage.MTMicrImageClass,
MTMicrImage.MicrImage // derives from interface
Attempt # 2
using System;
using MTMicrImage; // reference to the component
using System.Reflections;
public class oMirImage : MTMicrImage.MicrImage // derives from interface
{
private MTMicrImage.MicrImageClass obase; // his works of not "new"
is specified, but has null value.
public oMicrImage()
{
}
private object createInstance()
{
object obj = null;
try
{
obj =
Activator.CreateCOMObjectFrom"c:\\Interop.file.dll",
"InstanceMane");
}
catch (Exception e)
{
}
return obj;
}
#region methods
// All methods go here
# endregion
#region properties
// All properties go here
#endregion
}
Same problem as above.
Want something weird! Read below:
If I use vb scripting or javascript it works:
//using javascript
var oMicrImage = WScript.CreateObject("MTMicrImage.MicrImage")
Thjis works, it creates the object just right.
Thank you for your time.
Carlos Lozano
.
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