请教调用dll 具体得代码 - 专家坐堂 - Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

用matlab 生成的dll 文件名 fcs2txt.dll 已经复制到foxtable目录下.

matlab定义如下

function [fcsdat, fcshdr, fcsdatcomp] = fcs2txt(filename)

请问在foxtable 中调用的具体步骤帮助中代码看不大明白

<dllImport("kernel32. dll", CharSet:=CharSet. Ansi, CallinConvention:=CallingConvention. Cdecl)〉

Public Function fcs2txt(ByVal InString As String) As Integer

End Function

标红的这段不知道怎么改

Dim iRetUSB As Integer

iRetUSB = fcs2txt("f:\r.fcs")

是这样调用吗?

执行提示

fcs2txt是一个命名空间，不能用作表达式。

错误代码：iRetUSB=fcs2txt（"f:\r.fcs"）

以下是引用有点蓝在2019/12/26 16:04:00的发言：
调用说明文档发上来看看

fcs2txt MATLAB .NET Assembly (.NET Component)

1. Prerequisites for Deployment

Verify that version 9.5 (R2018b) of the MATLAB Runtime is installed.

If not, you can run the MATLAB Runtime installer.

To find its location, enter

>>mcrinstaller

at the MATLAB prompt.

NOTE: You will need administrator rights to run the MATLAB Runtime installer.

Alternatively, download and install the Windows version of the MATLAB Runtime for R2018b

from the following link on the MathWorks website:

http://www.mathworks.com/products/compiler/mcr/index.html

For more information about the MATLAB Runtime and the MATLAB Runtime installer, see

"Distribute Applications" in the MATLAB Compiler SDK documentation

in the MathWorks Documentation Center.

2. Files to Deploy and Package

-fcs2txt.dll

-contains the generated component using MWArray API.

-fcs2txtNative.dll

-contains the generated component using native API.

-This readme file

Note: if end users are unable to download the MATLAB Runtime using the

instructions in the previous section, include it when building your

component by clicking the "Runtime included in package" link in the

Deployment Tool.

Auto-generated Documentation Templates:

MWArray.xml - This file contains the code comments for the MWArray data conversion

classes and their methods. This file can be found in either the component

distrib directory or in

<mcr_root>*\toolbox\dotnetbuilder\bin\win64\v4.0

fcs2txt_overview.html - HTML overview documentation file for the generated component. It

contains the requirements for accessing the component and for

generating arguments using the MWArray class hierarchy.

fcs2txt.xml - This file contains the code comments for the fcs2txt component classes and

methods. Using a third party documentation tool, this file can be

combined with either or both of the previous files to generate

online documentation for the fcs2txt component.

3. Resources

To learn more about: See:

===================================================================

MWArray classes <matlab_root>*\help\toolbox\

dotnetbuilder\MWArrayAPI\

MWArrayAPI.chm

Examples of .NET Web Applications Web Deployment in the MATLAB

.NET Assembly documentation in the

MathWorks Documentation Center

4. Definitions

For information on deployment terminology, go to

http://www.mathworks.com/help and select MATLAB Compiler >

Getting Started > About Application Deployment >

Deployment Product Terms in the MathWorks Documentation

Center.

* NOTE: <mcr_root> is the directory where the MATLAB Runtime is installed on the target

machine.

<matlab_root> is the directory where MATLAB is installed on the target machine.

fcs2txt Assembly Description

This assembly was created using MATLAB .NET Assembly. The public class methods included in this assembly allow access to the MATLAB functions specified during compilation.

IMPORTANT: What you need to use this assembly successfully:

MATLAB Runtime

MATLAB Runtime is a collection of native libraries that are required to execute the MATLAB functions. Consequently, the MATLAB Runtime must be installed on any machine that runs a MATLAB .NET Assembly generated component. If you install MATLAB, MATLAB Compiler or MATLAB .NET Assembly, you have access to the MATLAB Runtime automatically. Otherwise, you must install the MATLAB Runtime by running the MCRInstaller executable. Note: This assembly is only compatible with version 9.5 of the MATLAB Runtime.

Please contact the provider of this assembly for specific details about the MATLAB Runtime.

MWArray.dll

This assembly, which can be found in <mcr_root>\toolbox\dotnetbuilder\bin\win64\v4.0, provides classes that act as the bridge between your application and the MATLAB Runtime. Note: The fcs2txt assembly, generated by MATLAB .NET Assembly, will only work with an MWArray assembly that was built against the same version of the MATLAB Runtime.

The MWArray class hierarchy provides methods to create and access the MATLAB data types used by the MATLAB Runtime. All of the classes derive from the abstract MWArray class and each of the derived classes, with the exception of MWIndexArray which is also abstract, maps to a MATLAB data type. The data conversion class hierarchy includes; MWNumericArray, MWLogicalArray, MWCharArray, MWStructArray, and MWCellArray. Each class has properties and methods that can be used to query various attributes of the class such as the number of dimensions, dimension size, element size, field names etc.

These classes can be explicitly instantiated and used as arguments to the MATLAB .NET Assembly generated class methods. Where applicable, a native .NET primitive or array type can also be used as an input parameter that will be implicitly converted to the appropriate MWArray type.