- Build Adobe Air Native Extensions using C#
The package is hosted on NuGet at https://www.nuget.org/packages/TuaRua.FreSharp/
A basic Hello World starter project is included
The following table shows the primitive as3 types which can easily be converted to/from C# types
| AS3 type | C# type | AS3 param->C# | return C#->AS3 |
|---|---|---|---|
| String | string | var str = argv[0].AsString() |
return str.ToFREObject() |
| int | int | var i = argv[0].AsInt() |
return i.ToFREObject() |
| Boolean | bool | var b = argv[0].AsBool() |
return b.ToFREObject() |
| Number | double | var dbl = argv[0].AsDouble() |
return dbl.ToFREObject() |
| uint ARGB | Color | var clr = argv[0].AsColor() |
return clr.ToFREObject() |
| Date | DateTime | var dt = argv[0].AsDateTime() |
return dt.ToFREObject() |
| Rectangle | Rect | var rect = argv[0].AsRect() |
return rect.ToFREObject() |
| Point | Point | var pnt = argv[0].AsPoint() |
return pnt.ToFREObject() |
| BitmapData | Bitmap | var bmp = argv[0].AsBitmap() |
return bmp.ToFREObject() |
| Array | string[] | var arr = argv[0].AsStringArray() |
return arr.ToFREObject() |
| Array | int[] | var arr = argv[0].AsIntArray() |
return arr.ToFREObject() |
| Array | double[] | var arr = argv[0].AsDoubleArray() |
return arr.ToFREObject() |
| Array | bool[] | var arr = argv[0].AsBoolArray() |
return arr.ToFREObject() |
| Object | Dictionary | var dct = argv[0].AsDictionary() |
N/A |
Example - Convert a FREObject into a String, and String into FREObject
try {
var airString = argv[0].AsString();
Trace("String passed from AIR:" + airString);
}
catch (Exception e) {
Console.WriteLine(@"caught in C#: type: {0} message: {1}", e.GetType(), e.Message);
}
const string sharpString = "I am a string from C#";
return sharpString.ToFREObject();Example - Call a method on an FREObject
var person = argv[0];
var addition = person.Call("add", 100, 33);
Trace("result is: ", addition.AsInt());Example - Get a property of a FREObject
var oldAge = person.GetProp("age").AsInt();
Trace("result is: ", oldAge);Example - Convert a FREObject Object into a Dictionary
var dictionary = person.AsDictionary();
var name = dictionary["name"];Example - Create a new FREObject
var newPerson = new FREObject().Init("com.tuarua.Person");
Trace("We created a new person. type =", newPerson.Type());Example - Error handling
var testString = argv[0];
try {
testString.Call("noStringFunc"); //call method on a string
}
catch (Exception e) {
return new FreException(e).RawValue; //return as3 error and throw in swc
}Advanced: Extending FreObjectSharp. Creating a C# version of flash.geom.point
using System.Collections;
using System.Windows;
using TuaRua.FreSharp;
using FREObject = System.IntPtr;
namespace FreSharp.Geom {
public class FrePointSharp {
public FrePointSharp() { }
public FREObject RawValue { get; set; } = FREObject.Zero;
public FrePointSharp(FREObject freObject) {
RawValue = freObject;
}
public FrePointSharp(Point value) {
uint resultPtr = 0;
var args = new ArrayList {
value.X,
value.Y
};
RawValue = FreSharpHelper.Core.getFREObject("flash.geom.Point", FreSharpHelper.ArgsToArgv(args),
FreSharpHelper.GetArgsC(args), ref resultPtr);
var status = (FreResultSharp) resultPtr;
if (status == FreResultSharp.Ok) {
return;
}
FreSharpHelper.ThrowFreException(status, "cannot create point ", RawValue);
}
public Point Value => new Point(
RawValue.GetProp("x").AsDouble(),
RawValue.GetProp("y").AsDouble());
}
}Uses .NET 4.6
You will need
- Visual Studio 2017
- AIR 19+ SDK