Hello,
below is my experimental c# code to illustrate the original VB IIR2 example and
the VExampleMA from the ADK.
from the Amibroker side the object creation in AFL will be:
myobj = CreateObject("csharp.amlib1");
//call method
iir2 = myobj.IIR2(Close, 0.2,1.2,-0.4);
//calling Windows Forms
myobj.ShowDialog("AFL called me");
// c# below
using System;
using System.Runtime.InteropServices;
namespace ClassLibrary3
{
[
Guid("16308AFC-FB7E-4cc6-9A3B-F47B99B7F18B"),
InterfaceType(ComInterfaceType.InterfaceIsDual),
ComVisible(true)
]
public interface IMyAmPlugin1
{
[DispId(1)]
string HelloAmibroker();
[DispId(2)]
int ShowDialog(string msg);
[DispId(3)]
object IIR2( object input, float f0, float f1, float f2);
[DispId(4)]
object MyExampleMA(object input, int range);
};
[
Guid("4328EB81-CFFF-423b-B1B4-D5B1F1AC76B7"),
ProgId("csharp.amlib1"),
ClassInterface(ClassInterfaceType.None),
ComDefaultInterface(typeof(IMyAmPlugin1)),
ComVisible(true)
]
public class Class1 : IMyAmPlugin1
{
private const float EMPTY_VAL = -1e10f;
public string HelloAmibroker()
{
return "Hello Amibroker, I'm from C#";
}
public int ShowDialog(string msg)
{
System.Windows.Forms.MessageBox.Show(msg, "");
return 0;
}
public object IIR2(object input, float f0, float f1, float f2)
{
object[] inputArray = (object[]) input;
object[] outputArray = inputArray;
outputArray[0] = inputArray[0];
outputArray[1] = inputArray[1];
for (int i = 2; i < inputArray.Length; i++)
{
outputArray[i] = f0 * Convert.ToSingle(inputArray[i]) +
f1 * Convert.ToSingle(outputArray[i - 1]) + f2 *
Convert.ToSingle(outputArray[i - 2]);
}
return outputArray ;
}
private int SkipEmptyValues(int nSize, object[] srcArray, object[]
result)
{
int i;
for (i = 0; i < nSize && (Convert.ToSingle(srcArray[i]) ==
EMPTY_VAL); i++)
{
result[i] = EMPTY_VAL;
}
return i;
}
public object MyExampleMA(object input, int range)
{
object[] inputArray = (object[]) input;
int nSize = inputArray.Length;
object[] result = new object[nSize];
int j = SkipEmptyValues(nSize, inputArray, result);
for (int i = j; i < nSize; i++)
{
if (i < j + range)
{
result[i] = EMPTY_VAL;
continue;
}
float sum = 0.0f;
for (int k = 0; k < range; k++)
{
sum += Convert.ToSingle(inputArray[i - k]);
}
result[i] = sum / range;
}
return result;
}
}
}
Regards
SW
________________________________
From: Yofa <[email protected]>
To: [email protected]
Sent: Monday, May 4, 2009 4:06:32 AM
Subject: Re: [amibroker] Amibroker Plugin C# template? Anyone?
Hi Dan,
1. make the c# code a "COM visible" component.
2. Register it on the AB machine.
3. write c++ plugin to access it as a COM component. (Use ADK)
Y
------------ --------- --------- --------- --------- --
From: "ccr1der" <d...@hottuna. com>
Sent: Thursday, April 30, 2009 7:46 AM
To: <amibro...@yahoogrou ps.com>
Subject: [amibroker] Amibroker Plugin C# template? Anyone?
> Does anyone have a C# based template for AB plugins? Has anyone ever
> compiled a C# plugin for AB? I have a very important piece of code in C#
> that I need accessible from within AB, and while I'm not at all well
> versed in C#, I'm willing to take a stab at trying to get this to work....
> but I need some kind of a starting point?
>
> Any help would be greatly appreciated. Thanks.
>
> -Dan
>
>
>
>
> ------------ --------- --------- ------
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