连接到扫描仪 [英] Connecting to a Scanner

问题描述

大家好，

我有问题，请您帮忙.
我有连接到扫描仪的API，扫描仪通过usb电缆连接到计算机.它不会显示为USB，而是显示为COM端口.

现在，我想与扫描仪进行对话，以便它将存储在扫描仪中的数据转储到机器上的某个位置.

请你能帮帮我.

以下是API的代码.

Hi Guys,

I have a problem and asking for your help.
I have this API that connects to a Scanner, the Scanner is connected to a machine via a usb cable. It doesn''t appear on as USB but as a COM port.

Now i want to talk to the scanner so that it dumps the data that is stored in it in a location on the machine.

Please can you help me.

Below is the code for the API.

/// <summary>
       /// Filter out custom messages
       /// </summary>
       /// <param name="m">Message value - cannot be changed</param>
       /// <returns>false = messages will be prosessed by the appliction, true = message will be deleted and
       /// not processed</returns>
       public bool PreFilterMessage(ref Message m)
       {
           bool res = false;//by default allow the message to be dispatched to the rest of the app
           try
           {
               if (m.Msg == fCustomMSGHandle && m.Msg <= fCustomMSGHandle)
               {
                   if (fCallback!=null)
                   {
                       fCallback(m.Msg, (int)m.WParam, (int)m.LParam, (int)m.HWnd.ToInt32());
                   }
                   res = true;
               }
           }
           catch (Exception)
           {
               res = false;
           }
           return res;
       }

这是我很烂的地方. :-)请您能帮忙吗?

亲切的问候，
Ndeza，

this is where i get suck. :-) Please can you assist?

Kind Regards,
Ndeza,

推荐答案

在使用非标准设备和组件时，我们无能为力，因为我们无法访问正在使用的设备和组件. .

唯一的建议是与供应商联系以获取更多信息和故障排除.

There is very little we can help you with when you are using non-standard devices and components as we do not have access to what you are working with.

The only advise is to contact your supplier for further information and troubleshooting.

这篇关于连接到扫描仪的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！