J
Janiek Buysrogge
Hello,
I followed the instructions on
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/callnetfrcom.asp
to call .NET class methods from the ActiveX Test Container
(tstcon32.exe) and I can load my control, but there aren't any methods
I can invoke.
However, in ActiveXplorer I can view the methods on the component
(screenshot:
http://idaho.cybernited.be/upload/televic/ActiveXplorer.JPG), but this
tool doesn't support invoking them.
Am I forgetting somehting ?
Any help appreciated.
Here's my code:
the interface:
using System;
using System.Collections.Generic;
using System.Text;
namespace COMVisibleMethods
{
public interface ICOMCallable
{
int SumOfTwo(int a, int b);
string GetCurrentDateTime();
}
}
the code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Reflection;
using Microsoft.Win32;
namespace COMVisibleMethods
{
public partial class Math : UserControl, ICOMCallable
{
public Math()
{
InitializeComponent();
}
public string GetCurrentDateTime()
{
return DateTime.Now.ToLongDateString() + " " +
DateTime.Now.ToLongTimeString();
}
public int SumOfTwo(int a, int b)
{
return a + b;
}
[ComRegisterFunction()]
public static void RegisterClass(string key)
{
// Strip off HKEY_CLASSES_ROOT\ from the passed key as I
don't need it
StringBuilder sb = new StringBuilder(key);
sb.Replace(@"HKEY_CLASSES_ROOT\", "");
// Open the CLSID\{guid} key for write access
RegistryKey k =
Registry.ClassesRoot.OpenSubKey(sb.ToString(), true);
// And create the 'Control' key - this allows it to show
up in
// the ActiveX control container
RegistryKey ctrl = k.CreateSubKey("Control");
ctrl.Close();
// Next create the CodeBase entry - needed if not string
named and GACced.
RegistryKey inprocServer32 =
k.OpenSubKey("InprocServer32", true);
inprocServer32.SetValue("CodeBase",
Assembly.GetExecutingAssembly().CodeBase);
inprocServer32.Close();
// Finally close the main key
k.Close();
}
[ComUnregisterFunction()]
public static void UnregisterClass(string key)
{
StringBuilder sb = new StringBuilder(key);
sb.Replace(@"HKEY_CLASSES_ROOT\", "");
// Open HKCR\CLSID\{guid} for write access
RegistryKey k =
Registry.ClassesRoot.OpenSubKey(sb.ToString(), true);
// Delete the 'Control' key, but don't throw an exception
if it does not exist
k.DeleteSubKey("Control", false);
// Next open up InprocServer32
RegistryKey inprocServer32 =
k.OpenSubKey("InprocServer32", true);
// And delete the CodeBase key, again not throwing if
missing
k.DeleteSubKey("CodeBase", false);
// Finally close the main key
k.Close();
}
}
}
-
JB
I followed the instructions on
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/callnetfrcom.asp
to call .NET class methods from the ActiveX Test Container
(tstcon32.exe) and I can load my control, but there aren't any methods
I can invoke.
However, in ActiveXplorer I can view the methods on the component
(screenshot:
http://idaho.cybernited.be/upload/televic/ActiveXplorer.JPG), but this
tool doesn't support invoking them.
Am I forgetting somehting ?
Any help appreciated.
Here's my code:
the interface:
using System;
using System.Collections.Generic;
using System.Text;
namespace COMVisibleMethods
{
public interface ICOMCallable
{
int SumOfTwo(int a, int b);
string GetCurrentDateTime();
}
}
the code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Reflection;
using Microsoft.Win32;
namespace COMVisibleMethods
{
public partial class Math : UserControl, ICOMCallable
{
public Math()
{
InitializeComponent();
}
public string GetCurrentDateTime()
{
return DateTime.Now.ToLongDateString() + " " +
DateTime.Now.ToLongTimeString();
}
public int SumOfTwo(int a, int b)
{
return a + b;
}
[ComRegisterFunction()]
public static void RegisterClass(string key)
{
// Strip off HKEY_CLASSES_ROOT\ from the passed key as I
don't need it
StringBuilder sb = new StringBuilder(key);
sb.Replace(@"HKEY_CLASSES_ROOT\", "");
// Open the CLSID\{guid} key for write access
RegistryKey k =
Registry.ClassesRoot.OpenSubKey(sb.ToString(), true);
// And create the 'Control' key - this allows it to show
up in
// the ActiveX control container
RegistryKey ctrl = k.CreateSubKey("Control");
ctrl.Close();
// Next create the CodeBase entry - needed if not string
named and GACced.
RegistryKey inprocServer32 =
k.OpenSubKey("InprocServer32", true);
inprocServer32.SetValue("CodeBase",
Assembly.GetExecutingAssembly().CodeBase);
inprocServer32.Close();
// Finally close the main key
k.Close();
}
[ComUnregisterFunction()]
public static void UnregisterClass(string key)
{
StringBuilder sb = new StringBuilder(key);
sb.Replace(@"HKEY_CLASSES_ROOT\", "");
// Open HKCR\CLSID\{guid} for write access
RegistryKey k =
Registry.ClassesRoot.OpenSubKey(sb.ToString(), true);
// Delete the 'Control' key, but don't throw an exception
if it does not exist
k.DeleteSubKey("Control", false);
// Next open up InprocServer32
RegistryKey inprocServer32 =
k.OpenSubKey("InprocServer32", true);
// And delete the CodeBase key, again not throwing if
missing
k.DeleteSubKey("CodeBase", false);
// Finally close the main key
k.Close();
}
}
}
-
JB