将vb dll转换为c＃时出现问题 [英] Problem in converting vb dll to c#

问题描述

vb.code //.BAS文件

类型电台
开始作为 < span class =code-keyword>长 
 停止 作为 长 
 MaxVal 作为  Double  
  end 类型

和以下struct在dll中

 typedef struct 
 {
  long  x; 
  byval  y; 
}电台; 
 

当我用c编写代码时




< pre lang =cs> class calldll
{

[StructLayout（LayoutKind.Sequential）]
struct 收音机
{
long x;
Intptr y;
double MaxVal;
}

// 但是当我尝试使用Mystruct作为类型时，它给出了错误。

类型无线电
{
int z; // 错误 - 期望获取或设置访问者
// 再次在这里我需要一些声明参数
}

}

我试图将struct更改为类，我也试图删除Type数据类型，它仍然给出了这个错误。

如何在C＃中再次使用Radio作为数据类型。



通过将Radio及其变量公开，我可以访问其变量

收音机r = 新收音机
 

rx = 0;

但我如何在Type Raiod中声明变量vb / .bas文件

解决方案

不，你不是尝试MyStruct类型，甚至没有关闭。短语 Type Radio {int z; } 是完全的胡言乱语;我不知道它可能意味着什么，你的想法是什么。



使用类型的东西可能有很多含义。该类型最简单和最重要的用途是创建某种类型的对象，实例化：

  struct  Radio {
  internal   long  x;  //  否则它将是私有的，无权访问anuwhere  
  //   Intptr y; //刮刮了，Intptr未定义 
  //  此外，我太害怕了想象你会做什么 
  //  如果是System.IntPtr;你会怎么做？ 
 内部  double  MaxVal; 
} 
 
无线电广播= 新 Radio（）; 
 radio.x =  10012 ; 
  //   ...  

还有静态成员和静态类，OOP，反射，属性......等等。您需要从头开始学习整个编程领域。请参阅.NET和语言手册，祝你好运。祝你好运。

-SA

vb.code //.BAS file

Type Radio
    Start As Long
    Stop As Long
    MaxVal As Double 
end Type

and following struct is in dll

typedef struct
{
    long x;
    byval y;
}Radio;

when I write code in c#

 class calldll
{

        [StructLayout(LayoutKind.Sequential)]
        struct Radio
        {
             long x;
             Intptr y;
             double MaxVal ;
        }

       // but when i try to use Mystruct as type it gives error.

        Type Radio
       {
           int z; // Error - A get or set accessor expected
          // again here I have to some declare parameters
       }

}

I tried to change struct into class and also i tried to remove Type datatype ,it still gives that error.
How I can use Radio as datatype again in C#.

By making Radio and its variable public I can access its variable

Radio r=new Radio

r.x=0;
but how can i declare variable in Type Raiod which is done vb/ .bas file

解决方案

No, you are not "trying MyStruct as type", not even close. The phrase Type Radio { int z; } is complete gibberish; I have no idea what it could possibly mean, what was your idea.

"Using something a type" could have many meanings. The simplest and most important use of the type is creating objects of some type, instantiating it:

struct Radio{
   internal long x; // otherwise it would be private, with no access to it anuwhere
   // Intptr y; // scratch is out, Intptr is not defined
   // besides, I am too terrified to imagine what would you do 
   // if it was System.IntPtr; what would you do with that
   internal double MaxVal;
}

Radio radio = new Radio();
radio.x = 10012;
//...

There are also static members and static classes, OOP, reflection, attributes… and a lot more. You need to learn the whole programming field pretty much from scratch. Take some manual on .NET and language and… good luck.

—SA

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