Synaptics SDK无法找到设备

时间:2015-09-24 17:32:51

标签: c# touchpad

我正在尝试使用Synaptics SDK在Synaptics触控板上获取设备句柄,特别是使用SYNCTRLLib中的方法。 但是,SYNCTRL方法无法找到它,返回-1

Syn.cs:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SYNCOMLib;
using SYNCTRLLib;

namespace TP_Test1
{
    class Syn
    {
        SynAPICtrl SynTP_API = new SynAPICtrl();
        SynDeviceCtrl SynTP_Dev = new SynDeviceCtrl();
        SynPacketCtrl SynTP_Pack = new SynPacketCtrl();
        int DeviceHandle;

        //Constructor
        public Syn ()
        {
            SynTP_API.Initialize();
            SynTP_API.Activate();

            //DeviceHandle == -1 ? Can't find device?
            DeviceHandle = SynTP_API.FindDevice(new SynConnectionType(), new SynDeviceType(), 0);
            //Below line causing Unhandled Exception
            SynTP_Dev.Select(DeviceHandle);
            SynTP_Dev.Activate();
            SynTP_Dev.OnPacket += SynTP_Dev_OnPacket;
        }

        public void SynTP_Dev_OnPacket()
        {
                Console.WriteLine(SynTP_Pack.FingerState);
                Console.WriteLine(SynTP_Pack.X);
                Console.WriteLine(SynTP_Pack.Y);
        }
    }
}

Program.cs的

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SYNCOMLib;
using SYNCTRLLib;

namespace TP_Test1
{
    class Program
    {
        static void Main(string[] args)
        {
            Syn mySyn = new Syn();
            mySyn.SynTP_Dev_OnPacket();
        }
    }
}

1 个答案:

答案 0 :(得分:3)

我看到你正在使用Synaptics SDK的C#包装器。尽管CPP代码对您来说可能并不重要,但您可能需要查看文件 Samples / ComTest.cpp 。它包含一些示例逻辑,以便查找设备,更具体地说,在第66-76行:

  // Find a device, preferentially a TouchPad or Styk.
  ISynDevice *pDevice = 0;
  long lHandle = -1;
  if ((pAPI->FindDevice(SE_ConnectionAny, SE_DeviceTouchPad, &lHandle) &&
       pAPI->FindDevice(SE_ConnectionAny, SE_DeviceStyk, &lHandle) &&
       pAPI->FindDevice(SE_ConnectionAny, SE_DeviceAny, &lHandle)) || 
      pAPI->CreateDevice(lHandle, &pDevice))
  {
    printf("Unable to find a Synaptics Device.\n");
    exit(-1);
  }

另外,请确保您已注册 dll 。根据 ReadSynSDK.txt 文件:

  

出于某些目的,可能需要注册dll   随SDK提供。这可以通过windows regsvr32来完成   效用