PHP Executed From ActiveX

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace PHPXApp
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button btnSimple;
		private System.Windows.Forms.Button btnVariables;
		private System.Windows.Forms.TextBox txtVariable;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;
		private System.Windows.Forms.Button btnCallback;
		private System.Windows.Forms.TextBox txtDLLFolder;
		private System.Windows.Forms.Label label1;

		PHPXControl.PHPX php = new PHPXControl.PHPXClass();

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			// This is the directory that PHP4TS.DLL or PHP5TS.DLL resides in
			php.HandleErrors = true;
			php.HTMLErrors = false;
			php.OnFunctionExecute += new PHPXControl.IPHPXEvents_OnFunctionExecuteEventHandler(php_OnFunctionExecute);
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			php.FinalizeControl();

			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.btnSimple = new System.Windows.Forms.Button();
			this.btnVariables = new System.Windows.Forms.Button();
			this.txtVariable = new System.Windows.Forms.TextBox();
			this.btnCallback = new System.Windows.Forms.Button();
			this.txtDLLFolder = new System.Windows.Forms.TextBox();
			this.label1 = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// btnSimple
			// 
			this.btnSimple.Location = new System.Drawing.Point(8, 48);
			this.btnSimple.Name = "btnSimple";
			this.btnSimple.Size = new System.Drawing.Size(176, 23);
			this.btnSimple.TabIndex = 0;
			this.btnSimple.Text = "Simple Example";
			this.btnSimple.Click += new System.EventHandler(this.btnSimple_Click);
			// 
			// btnVariables
			// 
			this.btnVariables.Location = new System.Drawing.Point(8, 80);
			this.btnVariables.Name = "btnVariables";
			this.btnVariables.Size = new System.Drawing.Size(176, 23);
			this.btnVariables.TabIndex = 1;
			this.btnVariables.Text = "Variable Example";
			this.btnVariables.Click += new System.EventHandler(this.btnVariables_Click);
			// 
			// txtVariable
			// 
			this.txtVariable.Location = new System.Drawing.Point(192, 80);
			this.txtVariable.Name = "txtVariable";
			this.txtVariable.TabIndex = 2;
			this.txtVariable.Text = "User";
			// 
			// btnCallback
			// 
			this.btnCallback.Location = new System.Drawing.Point(8, 112);
			this.btnCallback.Name = "btnCallback";
			this.btnCallback.Size = new System.Drawing.Size(176, 23);
			this.btnCallback.TabIndex = 3;
			this.btnCallback.Text = "CallBack Example";
			this.btnCallback.Click += new System.EventHandler(this.btnCallback_Click);
			// 
			// txtDLLFolder
			// 
			this.txtDLLFolder.Location = new System.Drawing.Point(96, 16);
			this.txtDLLFolder.Name = "txtDLLFolder";
			this.txtDLLFolder.Size = new System.Drawing.Size(200, 20);
			this.txtDLLFolder.TabIndex = 4;
			this.txtDLLFolder.Text = "h:\\PHPX\\";
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(8, 16);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(80, 23);
			this.label1.TabIndex = 5;
			this.label1.Text = "DLL Directory";
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(328, 150);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.txtDLLFolder);
			this.Controls.Add(this.btnCallback);
			this.Controls.Add(this.txtVariable);
			this.Controls.Add(this.btnVariables);
			this.Controls.Add(this.btnSimple);
			this.Name = "Form1";
			this.Text = "PHP Test Form";
			this.ResumeLayout(false);

		}
		#endregion


		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void btnSimple_Click(object sender, System.EventArgs e)
		{
			php.DLLFolder = txtDLLFolder.Text;
			string result = php.RunCode("print \"Hello World!\"");
			System.Windows.Forms.MessageBox.Show(result);
		}

		private void btnVariables_Click(object sender, System.EventArgs e)
		{
			php.DLLFolder = txtDLLFolder.Text;
			php.AddVariable("user",txtVariable.Text);
			string result = php.RunCode("print \"Hello $user from PHP!\"");
			System.Windows.Forms.MessageBox.Show(result);
		}

		private void btnCallback_Click(object sender, System.EventArgs e)
		{
			php.DLLFolder = txtDLLFolder.Text;
			php.AddFunction("test", 0);
			string result = php.RunCode("print test();");
			System.Windows.Forms.MessageBox.Show(result);
		}

		private void php_OnFunctionExecute(string FunctionName, string Parameters, ref string ReturnValue)
		{

			if (FunctionName=="test")
			{
				ReturnValue = "Hello World From C#!";
			}
		}
	}
}