整體思路

在電腦中建立手機服務端接聽手機並且根據命令控制PPT進行演示。

通過開發 Powerpoint 外掛，建立服務端和PPT之間聯絡，再通過WCF來打通伺服器和手機之間通訊。

1、我們先開發PPT 外掛，在Visual Studio 中建立 PowerPoint 外接程式專案（對於office 版本，自己根據需要而定）

2、並在專案新增WCF 服務契約，以及實現服務契約類。大致程式碼如下

（服務介面）

 
   [ServiceContract]
    public interface IPPTPhoneControl
    {
        [OperationContract(Name = "GetServerStateJson")]
        [WebGet(RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, UriTemplate = "GetServerState", BodyStyle = WebMessageBodyStyle.Bare)]
        String GetServerState();


        [OperationContract(Name = "SendMessageJson")]
        [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json, UriTemplate = "SendMessageJson", BodyStyle = WebMessageBodyStyle.WrappedRequest)]
        String SendMessage(string Message);

    }


 

  public class PPTPhoneControl : IPPTPhoneControl
    {

        public static Func<String> QueryServerState
        {
            get;
            set;
        }

        public static Func<String, String> ClientSendMessage
        {
            get;
            set;
        }

        public string GetServerState()
        {
            return QueryServerState();
        }

        public string SendMessage(string Message)
        {
            return ClientSendMessage(Message);
        }
    }

 

3、外掛程式碼

public partial class ThisAddIn
    {
        PowerPoint.SlideShowWindow Wpn;
        ServiceHost host;
        private void ThisAddIn_Startup(object sender, System.EventArgs e)
        {
            

        }

        private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
        {

        }

        

        #region VSTO generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InternalStartup()
        {
            
            this.Startup += new System.EventHandler(ThisAddIn_Startup);
            this.Shutdown += new System.EventHandler(ThisAddIn_Shutdown);
            this.Application.SlideShowBegin += new PowerPoint.EApplication_SlideShowBeginEventHandler(Application_SlideShowBegin);
            this.Application.SlideShowEnd += new PowerPoint.EApplication_SlideShowEndEventHandler(Application_SlideShowEnd);
        }

        void Application_SlideShowEnd(PowerPoint.Presentation Pres)
        {
            host.Close();
        }

        void Application_SlideShowBegin(PowerPoint.SlideShowWindow Wn)
        {
            Wpn = Wn;
            if (MessageBox.Show("是否開啟手機控制?","訊息",MessageBoxButtons.YesNo,MessageBoxIcon.Information,MessageBoxDefaultButton.Button1) == DialogResult.Yes)
            {
                host = new ServiceHost(typeof(PPTPhoneControl));
                PPTPhoneControl.QueryServerState = this.ClientQueryServerState;
                PPTPhoneControl.ClientSendMessage = this.ClientSendCommand;
                try
                {
                    host.Open();
                }
                catch(Exception e)
                {
                    MessageBox.Show(e.Message);
                    host.Close();
                }
            }
        }


        public String ClientQueryServerState()
        {
            try
            {

                return "已和服務建立聯絡";
            }
            catch
            {
                return "伺服器解析錯誤！";
            }
        }
        public String ClientSendCommand(String Command)
        {

            String ReturnString = "";
            try
            {
                switch (Command)
                {
                    case "Next":
                        Wpn.View.Next();
                        break;
                    case "First":
                        Wpn.View.First();
                        break;
                    case "Last":
                        Wpn.View.Last();
                        break;
                    case "Perv":
                        Wpn.View.Previous();
                        break;
                    default:
                        break;
                }
            }
            catch(Exception e)
            {
                return "服務端已關閉";
            }
            return ReturnString;
        }

        #endregion
    }

 

外掛程式碼很好讀懂，主要就是WCF 伺服器HOST建立，以及接收手機的訊息，處理等。

4、WCF 配置檔案

<?xml version="1.0"?>
<configuration>
  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceMetadata httpGetUrl="mex" httpGetEnabled="true"/>
          <serviceDebug httpHelpPageEnabled="true" includeExceptionDetailInFaults="true"/>
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="WebHttpBindingBehavior">
          <webHttp/>
        </behavior>
      </endpointBehaviors>
    </behaviors>

    <services>
      <service name="LivePPT.Service.PPTPhoneControl">
        <!--<endpoint address="xml" behaviorConfiguration="WebHttpBindingBehavior"
          binding="webHttpBinding" contract="WCFServiceLib.IHomePlay" />-->
        <endpoint address="json" binding="webHttpBinding"  contract="LivePPT.Service.IPPTPhoneControl" behaviorConfiguration="WebHttpBindingBehavior"/>
        <host>
          <baseAddresses>
            <add baseAddress="http://Localhost:8089" />
          </baseAddresses>
        </host>
      </service>
    </services>
  </system.serviceModel>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
  </startup>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>
</configuration>

 

到此服務端編碼完畢，在VS中執行專案即可啟動PowerPoint,當執行幻燈片時候就會提示是否開啟手機控制。

開啟手機控制，也就開啟了8089(配置中)埠，手機也就可以根據此埠進行通訊了。