将C dll头转换为Delphi pascal头

你能帮我吗？我需要将这个C报头转换成pascal报头

#include <wtypes.h>
extern "C"
{

typedef struct _sms_report
{
    char            sUserNumber[24];           
    unsigned char   cPort;                      
    unsigned char   cErrorCode;             
    unsigned char   cCount;                 
    unsigned char   cSuccCount;             

    _sms_report()
    {
        memset(this,0,sizeof(_sms_report));
    }
}_SMS_REPORT;





enum ERRORCODE
{
    _SUCCESS = 0,  
    _INVALID = 1,  
    _PORTCANTUSED = 2, 
    _TIMEOUT = 3,  
      _SOMEFAIL = 4, 
    _UNKNOW = 255   
};



typedef void (*On_WIAConnect)(short conn_no);          
typedef void (*On_WIADisConnect)(short conn_no);          
typedef void (*On_SendSmsReport)(short conn_no,char* seq,unsigned short numberCount,_SMS_REPORT* smsReport);
typedef void (*On_ReceiveSmsMsg)(short conn_no,unsigned char portno,char* seq,char* CallerNumber,char* text,
                                unsigned char type,char* receivetime,char timezone);
typedef void (*On_WIAStatusMsg)(short conn_no,char* seq,unsigned char portnum,unsigned char *pPortStatus);
typedef void (*On_SendUSSDResponse)(short conn_no,unsigned char portno,char* seq,unsigned char errcode);
typedef void (*On_ReceiveUSSDMsg)(short conn_no,unsigned char portno,char* seq,char* text,unsigned char status);


struct CBHandler
{
    On_WIAConnect _OnWIAConnect; 
    On_WIADisConnect  _OnWIADisConnect;
    On_SendSmsReport _OnSendSmsReport; 
    On_ReceiveSmsMsg _OnReceiveSmsMsg; 
    On_WIAStatusMsg  _OnWIAStatusMsg; 
    On_SendUSSDResponse _OnSendUSSDResponse;
    On_ReceiveUSSDMsg _OnReceiveUSSDMsg;
};


bool __declspec(dllexport) __stdcall InitLib(CBHandler *);
bool __declspec(dllexport) __stdcall StartRun(char *svrip,WORD port);
bool __declspec(dllexport) __stdcall GetSvrInfo(char *svrip,WORD port);
bool __declspec(dllexport) __stdcall SendSms(short conn_no,unsigned char PortNo,char* dstNumber,
                unsigned char msgCodingType,char* text,unsigned char type,char * seq);
bool __declspec(dllexport) __stdcall SendUSSD(short conn_no,unsigned char PortNo,unsigned char status,
                                    char* text,char * seq);
bool __declspec(dllexport) __stdcall UninitLib();
};

当我调用InitLib函数时，其中的参数是初始化完成但adter方法InitLib程序抛出EXEPPOTION访问冲突类型的方法指针的记录。我认为问题在于声明方法指针。这是我的主要表格单元：

unit main;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls,zfsmsdll;

type
  TForm1 = class(TForm)
    btn1: TButton;
    mmoLog: TMemo;
    btn2: TButton;
    procedure btn1Click(Sender: TObject);
    procedure btn2Click(Sender: TObject);

  private
    { Private declarations }
  public
    { Public declarations }
  end;

  THandlerEvents = class

    procedure OnWIAConnect ( conn_no: SmallInt);cdecl;

    procedure OnWIADisconnect ( conn_no: SmallInt);cdecl;
    procedure OnSendSmsReport (conn_no: SmallInt;  seq: PChar; numberCount: Word; smsReport: TSmsReport);cdecl;
    procedure OnReceiveSmsMsg (conn_no: SmallInt; portno: Byte; seq: PChar; CallerNumber: PChar; text: PChar;
                               ttype: Byte; receivetime: PChar; timezone: Char);cdecl;
    procedure OnWIAStatusMsg (conn_no: SmallInt; seq: PChar; portnum: Byte; pPortStatus: Byte);cdecl;
    procedure OnSendUSSDResponse (conn_no: SmallInt; portno: Byte; seq: PChar; errcode: Byte);cdecl;
    procedure OnReceiveUSSDMsg (conn_no: SmallInt; portno:Byte; seq: PChar; text: PChar; status: Byte );cdecl;

  end;


var
  Form1: TForm1;
  HandlerEvents: THandlerEvents;

  InitHandler: TCBhandler;



implementation

{$R *.dfm}

procedure THandlerEvents.OnWIAConnect ( conn_no: SmallInt);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnConnect processed');
end;

procedure THandlerEvents.OnWIADisconnect ( conn_no: SmallInt);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnWIADisconnect processed');
end;
procedure THandlerEvents.OnSendSmsReport (conn_no: SmallInt;  seq: PChar; numberCount: Word; smsReport: TSmsReport);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnSendSmsReport processed');
end;
procedure THandlerEvents.OnReceiveSmsMsg (conn_no: SmallInt; portno: Byte; seq: PChar; CallerNumber: PChar; text: PChar;
                               ttype: Byte; receivetime: PChar; timezone: Char);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnReceiveSmsMsg processed');
end;
procedure THandlerEvents.OnWIAStatusMsg (conn_no: SmallInt; seq: PChar; portnum: Byte; pPortStatus: Byte);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnWIAStatusMsg processed');
end;
procedure THandlerEvents.OnSendUSSDResponse (conn_no: SmallInt; portno: Byte; seq: PChar; errcode: Byte);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnSendUSSDResponse processed');
end;
procedure THandlerEvents.OnReceiveUSSDMsg (conn_no: SmallInt; portno:Byte; seq: PChar; text: PChar; status: Byte );cdecl;
begin
 Form1.mmoLog.Lines.Add('OnReceiveUSSDMsg processed');
end;


procedure TForm1.btn1Click(Sender: TObject);
begin

// try

     InitHandler.HOnWIAConnect := HandlerEvents.OnWIAConnect;
     InitHandler.HOnWIADisconnect := HandlerEvents.OnWIADisconnect;
     InitHandler.HOnSendSmsReport := HandlerEvents.OnSendSmsReport;
     InitHandler.HOnReceiveSmsMsg := HandlerEvents.OnReceiveSmsMsg;
     InitHandler.HOnWIAStatusMsg := HandlerEvents.OnWIAStatusMsg;
     InitHandler.HOnSendUSSDResponse := HandlerEvents.OnSendUSSDResponse;
     InitHandler.HOnReceiveUSSDMsg := HandlerEvents.OnReceiveUSSDMsg;

     if (InitLib(@InitHandler)) then
      begin
         mmoLog.Lines.Add('DLL initialized');
      end else
      begin
         mmoLog.Lines.Add('DLL NO initialized');
      end;

// except on e:Exception do
//  begin
//    mmoLog.Lines.Add('Exception:' + e.Message);
//  end;
// end;


end;

procedure TForm1.btn2Click(Sender: TObject);
begin
 try
     if (UninitLib) then
      begin
         mmoLog.Lines.Add('DLL UNinitialized');
      end else
      begin
         mmoLog.Lines.Add('DLL NO UNinitialized');
      end;
 except on e:Exception do
  begin
    mmoLog.Lines.Add('Exception:' + e.Message);
  end;
 end;
end;

end.

---

你能帮我个忙吗？谢谢。

您已将对象的

用于所有回调函数。这是不正确的。C报头不这样做，因此存在二进制不匹配。这就解释了你的错误

通过从您的Delphi单元中删除对象

的所有内容来修复此问题

其他一些评论：

• C

  char

  映射到Delphi

  AnsiChar

  ，或Delphi

  Byte

  。在Unicode Delphi上，使用

  Char

  将不正确
• 同样，您应该使用

  PAnsiChar

  而不是

  PChar

• 函数

  InitLIb

  ，

  StartRun

  等在C代码中声明为

  \u stdcall

  。您已经在Delphi代码中创建了它们

  cdecl

• _SendSmsReport上的

  的第四个参数获取指向结构的指针。您的Delphi代码被声明为接收结构。您需要添加该间接寻址，并使Delphi代码也接收一个指针

• _WIAStatusMsg上

  的
  pPortStatus
  参数是指向字节数组的指针。您已经在Delphi中将其声明为
  Byte

---

我怀疑在你的转换中还有一些错误。我建议你仔细再看一遍。

@StoryTeller你认为这里应该省略哪些细节。我看不出问题中的哪些代码可以删除。@DavidHeffernan，对于初学者来说，它很容易用一个小结构和一个回调来演示。@StoryTeller不太可能。在代码开始工作之前，您需要修复所有错误。不仅仅是对象的

错误。@DavidHeffernan，更重要的是，您还需要学习如何将代码分解以发现错误。你花时间检查OPs的全部代码，真是个大人物，但我怀疑你是否需要查看所有七个回调来告诉他们如何正确操作（尤其是因为它们都有相同的基本缺陷）。@StoryTeller我知道你来自何方。不过，我对这个问题有一些经验。在修复对象的
错误后，由于下一个错误，代码仍然失败。所以问题一直在继续！一个所谓的变色龙问题！请告诉我如何将“指向字节数组的指针”从C转换成Delphi，好吗？在C代码中，它是
无符号字符*
。看看C代码，我认为
无符号字符
用于字节，
字符
用于文本。由于函数传递一个指针，我假定它是指向数组的指针。但我可能错了。你必须阅读文档。尽管如此，您的Delphi代码需要声明它是
PByte
，这是一个指向字节的指针。很抱歉，Heffernan先生，我在这个问题上坐了10个多小时，我需要解决方法：-（我不想给您加边框。我如何正确使用pascal头才能工作？编译器编写我：[DCC错误]main.pas（86）：E2009不兼容类型：“常规过程和方法指针”，现场解决方案是添加“of object”声明，但在这种情况下是错误的。如果接口边界不匹配，则有两种可能的解决方案。您可以更改接口的任一侧以匹配另一侧。在这种情况下，您选择了错误的一个。您无法更改界面的e C端，因此您必须使Delphi端匹配。您不能使用对象的
。因此请删除它。现在您需要使回调成为普通的旧函数/过程，而不是类的方法。终于我明白了！它工作了！！！非常感谢Heffernan先生。非常感谢您对我的帮助！再次感谢。
unit main;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls,zfsmsdll;

type
  TForm1 = class(TForm)
    btn1: TButton;
    mmoLog: TMemo;
    btn2: TButton;
    procedure btn1Click(Sender: TObject);
    procedure btn2Click(Sender: TObject);

  private
    { Private declarations }
  public
    { Public declarations }
  end;

  THandlerEvents = class

    procedure OnWIAConnect ( conn_no: SmallInt);cdecl;

    procedure OnWIADisconnect ( conn_no: SmallInt);cdecl;
    procedure OnSendSmsReport (conn_no: SmallInt;  seq: PChar; numberCount: Word; smsReport: TSmsReport);cdecl;
    procedure OnReceiveSmsMsg (conn_no: SmallInt; portno: Byte; seq: PChar; CallerNumber: PChar; text: PChar;
                               ttype: Byte; receivetime: PChar; timezone: Char);cdecl;
    procedure OnWIAStatusMsg (conn_no: SmallInt; seq: PChar; portnum: Byte; pPortStatus: Byte);cdecl;
    procedure OnSendUSSDResponse (conn_no: SmallInt; portno: Byte; seq: PChar; errcode: Byte);cdecl;
    procedure OnReceiveUSSDMsg (conn_no: SmallInt; portno:Byte; seq: PChar; text: PChar; status: Byte );cdecl;

  end;


var
  Form1: TForm1;
  HandlerEvents: THandlerEvents;

  InitHandler: TCBhandler;



implementation

{$R *.dfm}

procedure THandlerEvents.OnWIAConnect ( conn_no: SmallInt);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnConnect processed');
end;

procedure THandlerEvents.OnWIADisconnect ( conn_no: SmallInt);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnWIADisconnect processed');
end;
procedure THandlerEvents.OnSendSmsReport (conn_no: SmallInt;  seq: PChar; numberCount: Word; smsReport: TSmsReport);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnSendSmsReport processed');
end;
procedure THandlerEvents.OnReceiveSmsMsg (conn_no: SmallInt; portno: Byte; seq: PChar; CallerNumber: PChar; text: PChar;
                               ttype: Byte; receivetime: PChar; timezone: Char);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnReceiveSmsMsg processed');
end;
procedure THandlerEvents.OnWIAStatusMsg (conn_no: SmallInt; seq: PChar; portnum: Byte; pPortStatus: Byte);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnWIAStatusMsg processed');
end;
procedure THandlerEvents.OnSendUSSDResponse (conn_no: SmallInt; portno: Byte; seq: PChar; errcode: Byte);cdecl;
begin
  Form1.mmoLog.Lines.Add('OnSendUSSDResponse processed');
end;
procedure THandlerEvents.OnReceiveUSSDMsg (conn_no: SmallInt; portno:Byte; seq: PChar; text: PChar; status: Byte );cdecl;
begin
 Form1.mmoLog.Lines.Add('OnReceiveUSSDMsg processed');
end;


procedure TForm1.btn1Click(Sender: TObject);
begin

// try

     InitHandler.HOnWIAConnect := HandlerEvents.OnWIAConnect;
     InitHandler.HOnWIADisconnect := HandlerEvents.OnWIADisconnect;
     InitHandler.HOnSendSmsReport := HandlerEvents.OnSendSmsReport;
     InitHandler.HOnReceiveSmsMsg := HandlerEvents.OnReceiveSmsMsg;
     InitHandler.HOnWIAStatusMsg := HandlerEvents.OnWIAStatusMsg;
     InitHandler.HOnSendUSSDResponse := HandlerEvents.OnSendUSSDResponse;
     InitHandler.HOnReceiveUSSDMsg := HandlerEvents.OnReceiveUSSDMsg;

     if (InitLib(@InitHandler)) then
      begin
         mmoLog.Lines.Add('DLL initialized');
      end else
      begin
         mmoLog.Lines.Add('DLL NO initialized');
      end;

// except on e:Exception do
//  begin
//    mmoLog.Lines.Add('Exception:' + e.Message);
//  end;
// end;


end;

procedure TForm1.btn2Click(Sender: TObject);
begin
 try
     if (UninitLib) then
      begin
         mmoLog.Lines.Add('DLL UNinitialized');
      end else
      begin
         mmoLog.Lines.Add('DLL NO UNinitialized');
      end;
 except on e:Exception do
  begin
    mmoLog.Lines.Add('Exception:' + e.Message);
  end;
 end;
end;

end.