Differences

This shows you the differences between two versions of the page.

--- compcode [2007/06/12 15:34]
lavirotte créée
+++ compcode [2011/01/05 16:26]
hourdin fixes in the code, update to new version
@@ Line 1: / Line 1: @@
+====== Sample of a Bean ======
+===== Source Code =====
+Here is a sample code of a component in C# (save this to a file called Your_CSharpBean_Name.cs) :
 <code csharp>
-using WComp.Beans; // It contains the definition of the attribute [Bean]
+using WComp.Beans;      // Contains the definition of the [Bean] attribute
 using System.Threading; // For the thread demo purposes
 namespace Your_Namespace_Name {
-[Bean]
-public class Your_CSharpBean_Name {
+    [Bean]
-public Your_CSharpBean_Name() {
+    public class Your_CSharpBean_Name : IThreadCreator {
-// Put here your init instructions
+        private Thread t;      // Private attributes of the class
-// Example of a loop that call the output
+        private volatile bool run = false;
-// every second.
-new Thread(new ThreadStart(ThreadLoopMethod)).Start();
+        public Your_CSharpBean_Name() {
-}
+            // Put here your init instructions
-// Loop sample
+            // Example of a loop that call the output
-public void ThreadLoopMethod() {
+            // every second.
-while(Thread.CurrentThread.IsAlive) {
+            t = new Thread(new ThreadStart(ThreadLoopMethod));
-Thread.Sleep(1000);
+        }
-double result;
-// Check if the output is connected
+        public void Start() {
-if(Output_Sample != null)
+            if (!run) {
-// call the connected methods sequentially
+                run = true;
-result = Output_Sample(123);
+                t.Start();
-// and so on...
+            }
-}
+        }
-}
+        public void Stop() {   // since version 2.4.0.856,
-// --- Start: Input port sample ---
+            run = false;       // IThreadCreator defines the Stop() method
-// an input port is a method (below)
+        }
-public int Input_Sample(string param_name) {
-string pn = param_name; // You may use the parameters
+         // Loop sample
-return 0; // You may return anything
+         public void ThreadLoopMethod() {
-}
+             while(run) {
-// --- End: Input port sample ---
+                 Thread.Sleep(1000);
-// --- Start: Output port sample ---
+                 double result;
-public delegate double Output_Sample_Signature(int param_name);
+                 // Check if the output is connected
-// This is the signature of the output method
+                 if(Output_Sample != null)
-public event Output_Sample_Signature Output_Sample;
+                     // call the connected methods sequentially
-// The output port is the event (before)
+                     result = Output_Sample(123);
-// --- End: Output port sample ---
+                // and so on...
-}
+             }
+        }
+        // --- Start: Input port sample ---
+        // an input port is a method (below)
+        public void Input_Sample(string param_name) {
+            string pn = param_name; // You may use the parameters
+            // No return value is expected in WComp:
+            // results are given using events
+        }
+        // --- End: Input port sample ---
+        // --- Start: Output port sample ---
+        public delegate double Output_Sample_Signature(int param_name);
+        // The delegate defines the signature of the output method
+        public event Output_Sample_Signature Output_Sample;
+        // The output port is the event, named here Output_Sample
+        // --- End: Output port sample ---
+    }
 }
 </code>
+===== Compilation =====
+Here is a sample of the command line compilation:
+<code>
+csc.exe /target:library /r:Beans.dll Sample_Component.cs
+</code>
+You will find Beans.dll in the SharpWComp distrib.